!skill refactor

pom.xml

@@ -131,7 +131,7 @@
 		<dependency>
 			<groupId>io.lumine</groupId>
 			<artifactId>MythicLib</artifactId>
-			<version>1.1.0</version>
+			<version>1.1.2</version>
 			<scope>provided</scope>
 		</dependency>
 

src/main/java/net/Indyuce/mmocore/MMOCore.java

@@ -32,10 +32,7 @@ import net.Indyuce.mmocore.comp.region.WorldGuardRegionHandler;
 import net.Indyuce.mmocore.comp.vault.VaultEconomy;
 import net.Indyuce.mmocore.comp.vault.VaultMMOLoader;
 import net.Indyuce.mmocore.listener.*;
-import net.Indyuce.mmocore.listener.option.DeathExperienceLoss;
+import net.Indyuce.mmocore.listener.option.*;
-import net.Indyuce.mmocore.listener.option.NoSpawnerEXP;
-import net.Indyuce.mmocore.listener.option.RedirectVanillaExp;
-import net.Indyuce.mmocore.listener.option.VanillaExperienceOverride;
 import net.Indyuce.mmocore.listener.profession.FishingListener;
 import net.Indyuce.mmocore.listener.profession.PlayerCollectStats;
 import net.Indyuce.mmocore.manager.ExperienceManager;
@@ -232,6 +229,9 @@ public class MMOCore extends LuminePlugin {
 		if (getConfig().getBoolean("death-exp-loss.enabled"))
 			Bukkit.getPluginManager().registerEvents(new DeathExperienceLoss(), this);
 
+		if (getConfig().getBoolean("shift-click-player-profile-check"))
+			Bukkit.getPluginManager().registerEvents(new PlayerProfileCheck(), this);
+
 		Bukkit.getPluginManager().registerEvents(new WaypointsListener(), this);
 		Bukkit.getPluginManager().registerEvents(new PlayerListener(), this);
 		Bukkit.getPluginManager().registerEvents(new GoldPouchesListener(), this);

src/main/java/net/Indyuce/mmocore/api/event/CustomBlockMineEvent.java

@@ -1,78 +1,60 @@
 package net.Indyuce.mmocore.api.event;
 
-import java.util.ArrayList;
+import net.Indyuce.mmocore.api.block.BlockInfo;
-import java.util.List;
+import net.Indyuce.mmocore.api.player.PlayerData;
-
 import org.bukkit.block.Block;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.HandlerList;
 import org.bukkit.inventory.ItemStack;
 
-import net.Indyuce.mmocore.api.block.BlockInfo;
+import java.util.List;
-import net.Indyuce.mmocore.api.droptable.condition.ConditionInstance;
-import net.Indyuce.mmocore.api.loot.LootBuilder;
-import net.Indyuce.mmocore.api.player.PlayerData;
 
 public class CustomBlockMineEvent extends PlayerDataEvent implements Cancellable {
-	private static final HandlerList handlers = new HandlerList();
+    private static final HandlerList handlers = new HandlerList();
 
-	private final Block block;
+    private final Block block;
-	private final BlockInfo info;
+    private final BlockInfo info;
-	private final List<ItemStack> drops;
+    private final List<ItemStack> drops;
 
-	@Deprecated
+    private boolean cancelled;
-	private boolean canBreak;
-	private boolean cancelled = false;
 
-	public CustomBlockMineEvent(PlayerData player, Block block, BlockInfo info, boolean canBreak) {
+    public CustomBlockMineEvent(PlayerData player, Block block, BlockInfo info, List<ItemStack> drops, boolean cancelled) {
-		super(player);
+        super(player);
 
-		this.block = block;
+        this.block = block;
-		this.info = info;
+        this.info = info;
-		this.drops = (info.hasDropTable() && player.isOnline() && info.getDropTable().areConditionsMet(new ConditionInstance(player.getPlayer())))
+        this.drops = drops;
-				? info.collectDrops(new LootBuilder(player, 0))
+        this.cancelled = cancelled;
-				: new ArrayList<>();
+    }
-		this.canBreak = canBreak;
-	}
 
-	public Block getBlock() {
+    public Block getBlock() {
-		return block;
+        return block;
-	}
+    }
 
-	public List<ItemStack> getDrops() {
+    public List<ItemStack> getDrops() {
-		return drops;
+        return drops;
-	}
+    }
 
-	public BlockInfo getBlockInfo() {
+    public BlockInfo getBlockInfo() {
-		return info;
+        return info;
-	}
+    }
 
-	@Deprecated
+    @Override
-	public boolean canBreak() {
+    public boolean isCancelled() {
-		return canBreak;
+        return cancelled;
-	}
+    }
 
-	@Deprecated
+    @Override
-	public void setCanBreak(boolean value) {
+    public void setCancelled(boolean value) {
-		canBreak = value;
+        cancelled = value;
-	}
+    }
 
-	@Override
+    @Override
-	public boolean isCancelled() {
+    public HandlerList getHandlers() {
-		return cancelled;
+        return handlers;
-	}
+    }
 
-	@Override
+    public static HandlerList getHandlerList() {
-	public void setCancelled(boolean value) {
+        return handlers;
-		cancelled = value;
+    }
-	}
-
-	@Override
-	public HandlerList getHandlers() {
-		return handlers;
-	}
-
-	public static HandlerList getHandlerList() {
-		return handlers;
-	}
 }

src/main/java/net/Indyuce/mmocore/api/event/PlayerPostCastSkillEvent.java

@@ -1,15 +1,15 @@
 package net.Indyuce.mmocore.api.event;
 
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
-import net.Indyuce.mmocore.api.skill.SkillResult;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
 import org.bukkit.event.HandlerList;
 
 public class PlayerPostCastSkillEvent extends PlayerDataEvent {
     private static final HandlerList handlers = new HandlerList();
 
     private final SkillInfo skill;
-    private final SkillResult result;
+    private final SkillMetadata result;
 
     /**
      * Called right after a player casts a skill.
@@ -18,7 +18,7 @@ public class PlayerPostCastSkillEvent extends PlayerDataEvent {
      * @param skill      Skill being cast
      * @param result     SKill casting result
      */
-    public PlayerPostCastSkillEvent(PlayerData playerData, SkillInfo skill, SkillResult result) {
+    public PlayerPostCastSkillEvent(PlayerData playerData, SkillInfo skill, SkillMetadata result) {
         super(playerData);
 
         this.skill = skill;
@@ -29,7 +29,7 @@ public class PlayerPostCastSkillEvent extends PlayerDataEvent {
         return skill;
     }
 
-    public SkillResult getResult() {
+    public SkillMetadata getResult() {
         return result;
     }
 

src/main/java/net/Indyuce/mmocore/api/event/PlayerPreCastSkillEvent.java

@@ -1,7 +1,7 @@
 package net.Indyuce.mmocore.api.event;
 
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.HandlerList;
 

src/main/java/net/Indyuce/mmocore/api/event/PlayerResourceUpdateEvent.java

@@ -2,6 +2,7 @@ package net.Indyuce.mmocore.api.event;
 
 import net.Indyuce.mmocore.api.player.PlayerData;
 import net.Indyuce.mmocore.api.player.profess.resource.PlayerResource;
+import net.Indyuce.mmocore.skill.list.Neptune_Gift;
 import org.bukkit.event.Cancellable;
 import org.bukkit.event.HandlerList;
 
@@ -27,7 +28,7 @@ public class PlayerResourceUpdateEvent extends PlayerDataEvent implements Cancel
 	 * Called when a player gains some resource back. This can
 	 * be used to handle stats like health or mana regeneration.
 	 * <p>
-	 * Example use: {@link net.Indyuce.mmocore.skill.Neptune_Gift} which is a skill
+	 * Example use: {@link Neptune_Gift} which is a skill
 	 * that temporarily increases resource regeneration for a short amount of time.
 	 *
 	 * @param playerData Player regenerating

src/main/java/net/Indyuce/mmocore/api/player/PlayerData.java

@@ -23,6 +23,7 @@ import net.Indyuce.mmocore.api.util.MMOCoreUtils;
 import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
 import net.Indyuce.mmocore.listener.SpellCast.SkillCasting;
 import net.Indyuce.mmocore.manager.SoundManager;
+import net.Indyuce.mmocore.skill.CasterMetadata;
 import net.Indyuce.mmocore.skill.PlayerSkillData;
 import net.Indyuce.mmocore.skill.Skill;
 import net.Indyuce.mmocore.skill.Skill.SkillInfo;
@@ -819,7 +820,8 @@ public class PlayerData extends OfflinePlayerData {
             return new SkillMetadata(this, skill, CancelReason.OTHER);
 
         // Check for mana/stamina/cooldown and cast skill
-        SkillMetadata cast = skill.getSkill().whenCast(this, skill);
+        CasterMetadata casterMeta = new CasterMetadata(this);
+        SkillMetadata cast = skill.getSkill().whenCast(casterMeta, skill);
 
         // Send failure messages
         if (!cast.isSuccessful()) {

src/main/java/net/Indyuce/mmocore/api/player/profess/PlayerClass.java

@@ -14,8 +14,8 @@ import net.Indyuce.mmocore.api.player.profess.resource.ManaDisplayOptions;
 import net.Indyuce.mmocore.api.player.profess.resource.PlayerResource;
 import net.Indyuce.mmocore.api.player.profess.resource.ResourceHandler;
 import net.Indyuce.mmocore.api.player.stats.StatType;
-import net.Indyuce.mmocore.api.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
 import net.Indyuce.mmocore.api.util.MMOCoreUtils;
 import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
 import net.Indyuce.mmocore.api.util.math.particle.CastingParticle;

src/main/java/net/Indyuce/mmocore/api/player/profess/SavedClassInformation.java

@@ -13,7 +13,7 @@ import com.google.gson.JsonObject;
 
 import net.Indyuce.mmocore.api.player.PlayerData;
 import net.Indyuce.mmocore.api.player.attribute.PlayerAttribute;
-import net.Indyuce.mmocore.api.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill;
 import net.Indyuce.mmocore.manager.data.PlayerDataManager.DefaultPlayerData;
 
 public class SavedClassInformation {

src/main/java/net/Indyuce/mmocore/api/player/profess/event/trigger/AttackEventTrigger.java

@@ -1,33 +1,32 @@
 package net.Indyuce.mmocore.api.player.profess.event.trigger;
 
-import org.bukkit.event.EventHandler;
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-import org.bukkit.event.EventPriority;
+import io.lumine.mythic.lib.damage.DamageType;
-
 import net.Indyuce.mmocore.api.player.PlayerData;
 import net.Indyuce.mmocore.api.player.profess.PlayerClass;
 import net.Indyuce.mmocore.api.player.profess.event.EventTriggerHandler;
-import io.lumine.mythic.lib.api.DamageType;
+import org.bukkit.event.EventHandler;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import org.bukkit.event.EventPriority;
 
 public class AttackEventTrigger implements EventTriggerHandler {
 
-	@Override
+    @Override
-	public boolean handles(String event) {
+    public boolean handles(String event) {
-		return event.endsWith("-damage");
+        return event.endsWith("-damage");
-	}
+    }
 
-	@EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-	public void a(PlayerAttackEvent event) {
+    public void a(PlayerAttackEvent event) {
-		// We don't want players dying by themselves when using an enderpearl.
+        // We don't want players dying by themselves when using an enderpearl.
-		if(event.getPlayer().equals(event.getEntity())) return;
+        if (event.getPlayer().equals(event.getEntity())) return;
 
-		PlayerData player = PlayerData.get(event.getData().getUniqueId());
+        PlayerData player = PlayerData.get(event.getData().getUniqueId());
-		PlayerClass profess = player.getProfess();
+        PlayerClass profess = player.getProfess();
 
-		for (DamageType type : event.getAttack().getTypes()) {
+        for (DamageType type : event.getAttack().getDamage().collectTypes()) {
-			String path = type.getPath() + "-damage";
+            String path = type.getPath() + "-damage";
-			if (profess.hasEventTriggers(path))
+            if (profess.hasEventTriggers(path))
-				profess.getEventTriggers(path).getTriggers().forEach(trigger -> trigger.apply(player));
+                profess.getEventTriggers(path).getTriggers().forEach(trigger -> trigger.apply(player));
-		}
+        }
-	}
+    }
 }

src/main/java/net/Indyuce/mmocore/api/skill/SkillResult.java

@@ -1,105 +0,0 @@
-package net.Indyuce.mmocore.api.skill;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
-import net.Indyuce.mmocore.comp.flags.FlagPlugin.CustomFlag;
-
-public class SkillResult {
-	private final SkillInfo skill;
-	private final int level;
-	private final double mana, cooldown, stamina;
-
-	private CancelReason cancelReason;
-
-	public SkillResult(PlayerData data, SkillInfo skill) {
-		this.skill = skill;
-
-		level = data.getSkillLevel(skill.getSkill());
-		cooldown = (skill.getSkill().hasModifier("cooldown") ? data.getSkillData().getCooldown(skill) : 0);
-		mana = (skill.getSkill().hasModifier("mana") ? skill.getModifier("mana", level) : 0);
-		stamina = (skill.getSkill().hasModifier("stamina") ? skill.getModifier("stamina", level) : 0);
-		cancelReason = !data.hasSkillUnlocked(skill) ? CancelReason.LOCKED
-				: cooldown > 0 ? CancelReason.COOLDOWN
-						: mana > data.getMana() ? CancelReason.MANA
-								: stamina > data.getStamina() ? CancelReason.STAMINA
-									: !MMOCore.plugin.flagPlugin.isFlagAllowed(data.getPlayer(), CustomFlag.SKILLS)
-											? CancelReason.FLAG
-											: null;
-	}
-
-	public SkillResult(PlayerData data, SkillInfo skill, CancelReason reason) {
-		this.skill = skill;
-		this.cancelReason = reason;
-
-		level = data.getSkillLevel(skill.getSkill());
-		cooldown = skill.getSkill().hasModifier("cooldown") ? data.getSkillData().getCooldown(skill) : 0;
-		mana = skill.getSkill().hasModifier("mana") ? skill.getModifier("mana", level) : 0;
-		stamina = (skill.getSkill().hasModifier("stamina") ? skill.getModifier("stamina", level) : 0);
-	}
-
-	public Skill getSkill() {
-		return skill.getSkill();
-	}
-
-	public SkillInfo getInfo() {
-		return skill;
-	}
-
-	public int getLevel() {
-		return level;
-	}
-
-	public double getStaminaCost() {
-		return stamina;
-	}
-
-	public double getManaCost() {
-		return mana;
-	}
-
-	public double getCooldown() {
-		return cooldown;
-	}
-
-	public boolean isSuccessful() {
-		return cancelReason == null;
-	}
-
-	public CancelReason getCancelReason() {
-		return cancelReason;
-	}
-
-	public void abort() {
-		abort(CancelReason.OTHER);
-	}
-
-	public void abort(CancelReason reason) {
-		cancelReason = reason;
-	}
-
-	public double getModifier(String modifier) {
-		return skill.getModifier(modifier, level);
-	}
-
-	public enum CancelReason {
-
-		// skill flag
-		FLAG,
-
-		// not enough mana
-		MANA,
-
-		// not enough stamina
-		STAMINA,
-
-		// skill still on cooldown
-		COOLDOWN,
-
-		// skill still not unlocked
-		LOCKED,
-
-		// no reason specified
-		OTHER
-	}
-}

src/main/java/net/Indyuce/mmocore/api/skill/result/LocationSkillResult.java

@@ -1,53 +0,0 @@
-package net.Indyuce.mmocore.api.skill.result;
-
-import org.bukkit.FluidCollisionMode;
-import org.bukkit.Location;
-import org.bukkit.util.RayTraceResult;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-
-public class LocationSkillResult extends SkillResult {
-	private Location loc;
-
-	/**
-	 * @param data  Player casting the skill
-	 * @param skill Skill being cast
-	 * @param range Skill raycast range
-	 */
-	public LocationSkillResult(PlayerData data, SkillInfo skill, double range) {
-		this(data, skill, range, false);
-	}
-
-	/**
-	 * @param data  Player casting the skill
-	 * @param skill Skill being cast
-	 * @param range Skill raycast range
-	 * @param buff  If the skill is a buff ie if it can be cast on party members
-	 */
-	public LocationSkillResult(PlayerData data, SkillInfo skill, double range, boolean buff) {
-		super(data, skill);
-
-		if (isSuccessful()) {
-
-			RayTraceResult result = data.getPlayer().getWorld().rayTrace(data.getPlayer().getEyeLocation(),
-					data.getPlayer().getEyeLocation().getDirection(), range, FluidCollisionMode.ALWAYS, true, 1.0D,
-					entity -> MMOCoreUtils.canTarget(data, entity, buff));
-			if (result == null)
-				abort(CancelReason.OTHER);
-			else
-				loc = result.getHitBlock() != null ? result.getHitBlock().getLocation()
-						: result.getHitEntity() != null ? result.getHitEntity().getLocation() : null;
-		}
-	}
-
-	public boolean hasHit() {
-		return loc != null;
-	}
-
-	public Location getHit() {
-		return loc;
-	}
-}

src/main/java/net/Indyuce/mmocore/api/skill/result/TargetSkillResult.java

@@ -1,52 +0,0 @@
-package net.Indyuce.mmocore.api.skill.result;
-
-import org.bukkit.entity.LivingEntity;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.MMORayTraceResult;
-
-public class TargetSkillResult extends SkillResult {
-	private LivingEntity target;
-
-	/**
-	 * @param data  Player casting the skill
-	 * @param skill Skill being cast
-	 * @param range Skill raycast range
-	 */
-	public TargetSkillResult(PlayerData data, SkillInfo skill, double range) {
-		this(data, skill, range, false);
-	}
-
-	/**
-	 * @param data  Player casting the skill
-	 * @param skill Skill being cast
-	 * @param range Skill raycast range
-	 * @param buff  If the skill is a buff ie if it can be cast on party members
-	 */
-	public TargetSkillResult(PlayerData data, SkillInfo skill, double range, boolean buff) {
-		super(data, skill);
-
-		if (isSuccessful()) {
-			MMORayTraceResult result = MythicLib.plugin.getVersion().getWrapper().rayTrace(data.getPlayer(), range,
-					entity -> MMOCoreUtils.canTarget(data, entity, buff));
-			if (!result.hasHit())
-				abort();
-			else
-				target = result.getHit();
-		}
-	}
-
-	// check skill result abort reason instead
-	@Deprecated
-	public boolean hasTarget() {
-		return target != null;
-	}
-
-	public LivingEntity getTarget() {
-		return target;
-	}
-}

src/main/java/net/Indyuce/mmocore/command/rpg/booster/ListCommandTreeNode.java

@@ -21,7 +21,7 @@ public class ListCommandTreeNode extends CommandTreeNode {
 			return CommandResult.FAILURE;
 
 		sender.sendMessage(ChatColor.YELLOW + "----------------------------------------------------");
-		for (Booster booster : MMOCore.plugin.boosterManager.getBoosters())
+		for (Booster booster : MMOCore.plugin.boosterManager.getActive())
 			if (!booster.isTimedOut())
 				MythicLib.plugin.getVersion().getWrapper().sendJson((Player) sender, "{\"text\":\"" + ChatColor.YELLOW + "- " + ChatColor.GOLD
 						+ MythicLib.plugin.getMMOConfig().decimal.format((1 + booster.getExtra())) + "x" + ChatColor.YELLOW + " Booster - "

src/main/java/net/Indyuce/mmocore/command/rpg/booster/RemoveCommandTreeNode.java

@@ -16,7 +16,7 @@ public class RemoveCommandTreeNode extends CommandTreeNode {
 		super(parent, "remove");
 
 		addParameter(new Parameter("<id>",
-				(explorer, list) -> MMOCore.plugin.boosterManager.getBoosters().forEach(booster -> list.add("" + booster.getUniqueId().toString()))));
+				(explorer, list) -> MMOCore.plugin.boosterManager.getActive().forEach(booster -> list.add("" + booster.getUniqueId().toString()))));
 	}
 
 	@Override
@@ -32,7 +32,7 @@ public class RemoveCommandTreeNode extends CommandTreeNode {
 			return CommandResult.FAILURE;
 		}
 
-		for (Iterator<Booster> iterator = MMOCore.plugin.boosterManager.getBoosters().iterator(); iterator.hasNext();) {
+		for (Iterator<Booster> iterator = MMOCore.plugin.boosterManager.getActive().iterator(); iterator.hasNext();) {
 			Booster booster = iterator.next();
 			if (booster.getUniqueId().equals(uuid)) {
 				iterator.remove();

src/main/java/net/Indyuce/mmocore/comp/mythicmobs/MythicMobsDrops.java

@@ -1,8 +1,5 @@
 package net.Indyuce.mmocore.comp.mythicmobs;
 
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-
 import io.lumine.xikage.mythicmobs.MythicMobs;
 import io.lumine.xikage.mythicmobs.api.bukkit.events.MythicDropLoadEvent;
 import io.lumine.xikage.mythicmobs.api.bukkit.events.MythicReloadedEvent;
@@ -10,40 +7,43 @@ import io.lumine.xikage.mythicmobs.skills.placeholders.Placeholder;
 import net.Indyuce.mmocore.api.player.PlayerData;
 import net.Indyuce.mmocore.comp.mythicmobs.load.CurrencyItemDrop;
 import net.Indyuce.mmocore.comp.mythicmobs.load.GoldPouchDrop;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
 
 public class MythicMobsDrops implements Listener {
-	public MythicMobsDrops() {
+    public MythicMobsDrops() {
-		registerPlaceholders();
+        registerPlaceholders();
-	}
+    }
 
-	@EventHandler
+    @EventHandler
-	public void a(MythicDropLoadEvent event) {
+    public void a(MythicDropLoadEvent event) {
 
-		// random gold pouches
+        // random gold pouches
-		if (event.getDropName().equalsIgnoreCase("gold_pouch") || event.getDropName().equalsIgnoreCase("goldpouch"))
+        if (event.getDropName().equalsIgnoreCase("gold_pouch") || event.getDropName().equalsIgnoreCase("goldpouch"))
-			event.register(new GoldPouchDrop(event.getConfig()));
+            event.register(new GoldPouchDrop(event.getConfig()));
 
-		// gold coins
+        // gold coins
-		if (event.getDropName().equalsIgnoreCase("gold_coin") || event.getDropName().equalsIgnoreCase("coin"))
+        if (event.getDropName().equalsIgnoreCase("gold_coin") || event.getDropName().equalsIgnoreCase("coin"))
-			event.register(new CurrencyItemDrop("GOLD_COIN", event.getConfig()));
+            event.register(new CurrencyItemDrop("GOLD_COIN", event.getConfig()));
 
-		// notes
+        // notes
-		if (event.getDropName().equalsIgnoreCase("note") || event.getDropName().equalsIgnoreCase("banknote") || event.getDropName().equalsIgnoreCase("bank_note"))
+        if (event.getDropName().equalsIgnoreCase("note") || event.getDropName().equalsIgnoreCase("banknote") || event.getDropName().equalsIgnoreCase("bank_note"))
-			event.register(new CurrencyItemDrop("NOTE", event.getConfig()));
+            event.register(new CurrencyItemDrop("NOTE", event.getConfig()));
-	}
+    }
 
-	/*
+    /*
-	 * when MythicMobs is reloaded, the placeholders are emptied. Add them again
+     * when MythicMobs is reloaded, the placeholders are emptied. Add them again
-	 */
+     */
-	@EventHandler
+    @EventHandler
-	public void b(MythicReloadedEvent event) {
+    public void b(MythicReloadedEvent event) {
-		registerPlaceholders();
+        registerPlaceholders();
-	}
+    }
 
-	private void registerPlaceholders() {
+    private void registerPlaceholders() {
-		MythicMobs.inst().getPlaceholderManager().register("mmocore.skill", Placeholder.meta((metadata, arg) -> String.valueOf(PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getSkillData().getCachedModifier(arg))));
+        // TODO
-		MythicMobs.inst().getPlaceholderManager().register("mmocore.skill.int", Placeholder.meta((metadata, arg) -> String.valueOf((int) PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getSkillData().getCachedModifier(arg))));
+        /*MythicMobs.inst().getPlaceholderManager().register("mmocore.skill", Placeholder.meta((metadata, arg) -> String.valueOf(PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getSkillData().getCachedModifier(arg))));
-		MythicMobs.inst().getPlaceholderManager().register("mmocore.mana", Placeholder.meta((metadata, arg) -> String.valueOf((int) PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getMana())));
+        MythicMobs.inst().getPlaceholderManager().register("mmocore.skill.int", Placeholder.meta((metadata, arg) -> String.valueOf((int) PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getSkillData().getCachedModifier(arg))));*/
-		MythicMobs.inst().getPlaceholderManager().register("mmocore.stamina", Placeholder.meta((metadata, arg) -> String.valueOf((int) PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getStamina())));
+        MythicMobs.inst().getPlaceholderManager().register("mmocore.mana", Placeholder.meta((metadata, arg) -> String.valueOf((int) PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getMana())));
-	}
+        MythicMobs.inst().getPlaceholderManager().register("mmocore.stamina", Placeholder.meta((metadata, arg) -> String.valueOf((int) PlayerData.get(metadata.getCaster().getEntity().getUniqueId()).getStamina())));
+    }
 }

src/main/java/net/Indyuce/mmocore/comp/mythicmobs/skill/MythicMobSkill.java

@@ -2,112 +2,117 @@ package net.Indyuce.mmocore.comp.mythicmobs.skill;
 
 import io.lumine.mythic.lib.api.util.EnumUtils;
 import io.lumine.xikage.mythicmobs.MythicMobs;
+import io.lumine.xikage.mythicmobs.adapters.AbstractEntity;
+import io.lumine.xikage.mythicmobs.adapters.AbstractLocation;
+import io.lumine.xikage.mythicmobs.adapters.bukkit.BukkitAdapter;
+import io.lumine.xikage.mythicmobs.mobs.GenericCaster;
+import io.lumine.xikage.mythicmobs.skills.SkillCaster;
+import io.lumine.xikage.mythicmobs.skills.SkillTrigger;
 import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.SkillResult.CancelReason;
 import net.Indyuce.mmocore.api.util.MMOCoreUtils;
 import net.Indyuce.mmocore.api.util.math.formula.IntegerLinearValue;
 import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
 import net.Indyuce.mmocore.comp.anticheat.CheatType;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
 import org.apache.commons.lang.Validate;
 import org.bukkit.Bukkit;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.configuration.file.FileConfiguration;
-import org.bukkit.entity.Entity;
 
-import java.util.*;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Optional;
 import java.util.logging.Level;
 
 public class MythicMobSkill extends Skill {
-	private final io.lumine.xikage.mythicmobs.skills.Skill skill;
+    private final io.lumine.xikage.mythicmobs.skills.Skill skill;
-	private final Map<CheatType, Integer> antiCheat = new HashMap<>();
+    private final Map<CheatType, Integer> antiCheat = new HashMap<>();
 
-	//private final BiFunction<PlayerDataManager, SkillInfo, SkillResult> cast;
+    public MythicMobSkill(String id, FileConfiguration config) {
+        super(id);
 
-	public MythicMobSkill(String id, FileConfiguration config) {
+        String mmId = config.getString("mythicmobs-skill-id");
-		super(id);
+        Validate.notNull(mmId, "Could not find MM skill ID");
 
-		String mmId = config.getString("mythicmobs-skill-id");
+        Optional<io.lumine.xikage.mythicmobs.skills.Skill> opt = MythicMobs.inst().getSkillManager().getSkill(mmId);
-		Validate.notNull(mmId, "Could not find MM skill ID");
+        Validate.isTrue(opt.isPresent(), "Could not find MM skill " + mmId);
+        skill = opt.get();
 
-		Optional<io.lumine.xikage.mythicmobs.skills.Skill> opt = MythicMobs.inst().getSkillManager().getSkill(mmId);
+        String format = config.getString("material");
-		Validate.isTrue(opt.isPresent(), "Could not find MM skill " + mmId);
+        Validate.notNull(format, "Could not load skill material");
-		skill = opt.get();
+        setIcon(MMOCoreUtils.readIcon(format));
 
-		String format = config.getString("material");
+        setName(config.getString("name"));
-		Validate.notNull(format, "Could not load skill material");
+        setLore(config.getStringList("lore"));
-		setIcon(MMOCoreUtils.readIcon(format));
 
-		setName(config.getString("name"));
+        for (String key : config.getKeys(false)) {
-		setLore(config.getStringList("lore"));
+            Object mod = config.get(key);
+            if (mod instanceof ConfigurationSection)
+                addModifier(key, readLinearValue((ConfigurationSection) mod));
+        }
 
-		for (String key : config.getKeys(false)) {
+        if (config.isConfigurationSection("disable-anti-cheat"))
-			Object mod = config.get(key);
+            for (String key : config.getKeys(false)) {
-			if (mod instanceof ConfigurationSection)
+                Optional<CheatType> cheatType = EnumUtils.getIfPresent(CheatType.class, key.toUpperCase());
-				addModifier(key, readLinearValue((ConfigurationSection) mod));
+                if (cheatType.isPresent() && config.isInt("disable-anti-cheat." + key))
-		}
+                    antiCheat.put(cheatType.get(), config.getInt("disable-anti-cheat." + key));
+                else
+                    MMOCore.log(Level.WARNING, "Invalid Anti-Cheat configuration for '" + id + "'!");
+            }
 
-		if (config.isConfigurationSection("disable-anti-cheat"))
+        if (config.isString("passive-type")) {
-			for (String key : config.getKeys(false)) {
+            Optional<PassiveSkillType> passiveType = EnumUtils.getIfPresent(PassiveSkillType.class, config.getString("passive-type").toUpperCase());
-				Optional<CheatType> cheatType = EnumUtils.getIfPresent(CheatType.class, key.toUpperCase());
+            Validate.isTrue(passiveType.isPresent(), "Invalid passive skill type");
-				if (cheatType.isPresent() && config.isInt("disable-anti-cheat." + key))
+            setPassive();
-					antiCheat.put(cheatType.get(), config.getInt("disable-anti-cheat." + key));
+            Bukkit.getPluginManager().registerEvents(passiveType.get().getHandler(this), MMOCore.plugin);
-				else
+        }
-					MMOCore.log(Level.WARNING, "Invalid Anti-Cheat configuration for '" + id + "'!");
+    }
-			}
 
-		if (config.isString("passive-type")) {
+    public Map<CheatType, Integer> getAntiCheat() {
-			Optional<PassiveSkillType> passiveType = EnumUtils.getIfPresent(PassiveSkillType.class, config.getString("passive-type").toUpperCase());
+        return antiCheat;
-			Validate.isTrue(passiveType.isPresent(), "Invalid passive skill type");
+    }
-			setPassive();
-			Bukkit.getPluginManager().registerEvents(passiveType.get().getHandler(this), MMOCore.plugin);
-		}
 
-		// cast = config.getBoolean("target") ? (data, info) -> new
+    public String getInternalName() {
-		// TargetSkillResult(data, info, def(config.getDouble("range"), 50)) :
+        return skill.getInternalName();
-		// (data, info) -> new SkillResult(data, info);
+    }
-	}
 
-	public Map<CheatType, Integer> getAntiCheat() {
+    public io.lumine.xikage.mythicmobs.skills.Skill getSkill() {
-		return antiCheat;
+        return skill;
-	}
+    }
 
-	public String getInternalName() {
+    @Override
-		return skill.getInternalName();
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
-	}
+        SkillMetadata cast = new SkillMetadata(caster, skill);
+        if (!cast.isSuccessful() || isPassive())
+            return cast;
 
-	@Override
+        HashSet<AbstractEntity> targetEntities = new HashSet<>();
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
+        HashSet<AbstractLocation> targetLocations = new HashSet<>();
-		SkillResult cast = new SkillResult(data, skill);
-		if (!cast.isSuccessful() || !data.isOnline() || isPassive())
-			return cast;
 
-		List<Entity> targets = new ArrayList<>();
+        AbstractEntity trigger = BukkitAdapter.adapt(caster.getPlayer());
-		// targets.add(cast instanceof TargetSkillResult ? ((TargetSkillResult)
+        SkillCaster skillCaster = new GenericCaster(trigger);
-		// cast).getTarget() : stats.getPlayer());
+        io.lumine.xikage.mythicmobs.skills.SkillMetadata skillMeta = new io.lumine.xikage.mythicmobs.skills.SkillMetadata(SkillTrigger.API, skillCaster, trigger, BukkitAdapter.adapt(caster.getPlayer().getEyeLocation()), targetEntities, targetLocations, 1);
-		targets.add(data.getPlayer());
 
-		/*
+        // Disable anticheat
-		 * cache placeholders so they can be retrieved later by MythicMobs math
+        if (MMOCore.plugin.hasAntiCheat())
-		 * formulas
+            MMOCore.plugin.antiCheatSupport.disableAntiCheat(caster.getPlayer(), antiCheat);
-		 */
-		data.getSkillData().cacheModifiers(this, cast);
-		if (MMOCore.plugin.hasAntiCheat())
-			MMOCore.plugin.antiCheatSupport.disableAntiCheat(data.getPlayer(), antiCheat);
-		if (!MythicMobs.inst().getAPIHelper().castSkill(data.getPlayer(), this.skill.getInternalName(), data.getPlayer(),
-				data.getPlayer().getEyeLocation(), targets, null, 1))
-			cast.abort(CancelReason.OTHER);
 
-		return cast;
+        if (this.skill.usable(skillMeta, SkillTrigger.API))
-	}
+            this.skill.execute(skillMeta);
+        else
+            cast.abort();
 
-	/**
+        return cast;
-	 * Used to load double modifiers from the config with a specific type, since
+    }
-	 * modifiers have initially a type for mmocore default skills
+
-	 */
+    /**
-	private LinearValue readLinearValue(ConfigurationSection section) {
+     * Used to load double modifiers from the config with a specific type, since
-		return section.getBoolean("int") ? new IntegerLinearValue(section) : new LinearValue(section);
+     * modifiers have initially a type for mmocore default skills
-	}
+     */
+    private LinearValue readLinearValue(ConfigurationSection section) {
+        return section.getBoolean("int") ? new IntegerLinearValue(section) : new LinearValue(section);
+    }
 }

src/main/java/net/Indyuce/mmocore/comp/mythicmobs/skill/PassiveMythicMobSkillHandler.java

@@ -1,40 +1,65 @@
 package net.Indyuce.mmocore.comp.mythicmobs.skill;
 
-import io.lumine.xikage.mythicmobs.MythicMobs;
+import io.lumine.xikage.mythicmobs.adapters.AbstractEntity;
+import io.lumine.xikage.mythicmobs.adapters.AbstractLocation;
+import io.lumine.xikage.mythicmobs.adapters.bukkit.BukkitAdapter;
+import io.lumine.xikage.mythicmobs.mobs.GenericCaster;
+import io.lumine.xikage.mythicmobs.skills.SkillCaster;
+import io.lumine.xikage.mythicmobs.skills.SkillTrigger;
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.SkillResult;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
 import org.bukkit.entity.Entity;
 import org.bukkit.event.Listener;
 
-import java.util.Collections;
+import java.util.HashSet;
 
 public abstract class PassiveMythicMobSkillHandler implements Listener {
-	protected final MythicMobSkill skill;
+    protected final MythicMobSkill skill;
-	
-	/**
-	 * Core class for all passive types
-	 */
-	protected PassiveMythicMobSkillHandler(MythicMobSkill skill) {
-		this.skill = skill;
-	}
-	
-	public void castSkill(PlayerData data) {
-		castSkill(data, data.getPlayer());
-	}
 
-	public void castSkill(PlayerData data, Entity target) {
+    /**
-		if (!data.getProfess().hasSkill(skill.getId()))
+     * Core class for all passive types
-			return;
+     */
+    protected PassiveMythicMobSkillHandler(MythicMobSkill skill) {
+        this.skill = skill;
+    }
 
-		SkillResult cast = data.cast(data.getProfess().getSkill(skill.getId()));
+    public SkillMetadata castSkill(PlayerData data) {
-		if (!cast.isSuccessful())
+        return castSkill(data, null);
-			return;
+    }
 
-		data.getSkillData().cacheModifiers(skill.getInternalName(), cast);
+    public SkillMetadata castSkill(PlayerData playerData, Entity target) {
-		if (MMOCore.plugin.hasAntiCheat())
+        if (!playerData.getProfess().hasSkill(skill))
-			MMOCore.plugin.antiCheatSupport.disableAntiCheat(data.getPlayer(), skill.getAntiCheat());
+            return null;
-		MythicMobs.inst().getAPIHelper().castSkill(data.getPlayer(), skill.getInternalName(), target,
+
-				data.getPlayer().getEyeLocation(), Collections.singletonList(data.getPlayer()), null, 1);
+        Skill.SkillInfo skill = playerData.getProfess().getSkill(this.skill);
-	}
+        CasterMetadata caster = new CasterMetadata(playerData);
+        SkillMetadata cast = new SkillMetadata(caster, skill);
+        if (!cast.isSuccessful() || this.skill.isPassive())
+            return cast;
+
+        HashSet<AbstractEntity> targetEntities = new HashSet<>();
+        HashSet<AbstractLocation> targetLocations = new HashSet<>();
+
+        // The only difference
+        if (target != null)
+            targetEntities.add(BukkitAdapter.adapt(target));
+
+        AbstractEntity trigger = BukkitAdapter.adapt(caster.getPlayer());
+        SkillCaster skillCaster = new GenericCaster(trigger);
+        io.lumine.xikage.mythicmobs.skills.SkillMetadata skillMeta = new io.lumine.xikage.mythicmobs.skills.SkillMetadata(SkillTrigger.API, skillCaster, trigger, BukkitAdapter.adapt(caster.getPlayer().getEyeLocation()), targetEntities, targetLocations, 1);
+
+        // Disable anticheat
+        if (MMOCore.plugin.hasAntiCheat())
+            MMOCore.plugin.antiCheatSupport.disableAntiCheat(caster.getPlayer(), this.skill.getAntiCheat());
+
+        if (this.skill.getSkill().usable(skillMeta, SkillTrigger.API))
+            this.skill.getSkill().execute(skillMeta);
+        else
+            cast.abort();
+
+        return cast;
+    }
 }

src/main/java/net/Indyuce/mmocore/comp/mythicmobs/skill/handlers/PlayerDamageSkillHandler.java

@@ -18,8 +18,8 @@ public class PlayerDamageSkillHandler extends PassiveMythicMobSkillHandler {
 	}
 
 	@EventHandler
-	private void event(EntityDamageEvent e) {
+	private void event(EntityDamageEvent event) {
-		if (e.getEntityType() == EntityType.PLAYER && !e.getEntity().hasMetadata("NPC"))
+		if (event.getEntityType() == EntityType.PLAYER && !event.getEntity().hasMetadata("NPC"))
-			castSkill(PlayerData.get((Player) e.getEntity()));
+			castSkill(PlayerData.get((Player) event.getEntity()));
 	}	
 }

src/main/java/net/Indyuce/mmocore/gui/PlayerStats.java

@@ -10,7 +10,6 @@ import net.Indyuce.mmocore.api.player.stats.StatType;
 import net.Indyuce.mmocore.api.util.math.format.DelayFormat;
 import net.Indyuce.mmocore.gui.api.EditableInventory;
 import net.Indyuce.mmocore.gui.api.GeneratedInventory;
-import net.Indyuce.mmocore.gui.api.PluginInventory;
 import net.Indyuce.mmocore.gui.api.item.InventoryItem;
 import net.Indyuce.mmocore.gui.api.item.Placeholders;
 import net.Indyuce.mmocore.gui.api.item.SimplePlaceholderItem;
@@ -43,7 +42,7 @@ public class PlayerStats extends EditableInventory {
 				@Override
 				public boolean canDisplay(PlayerStatsInventory inv) {
 					InventoryItem boost = inv.getByFunction("boost");
-					return boost != null && inv.boostOffset + boost.getSlots().size() < MMOCore.plugin.boosterManager.getBoosters().size();
+					return boost != null && inv.boostOffset + boost.getSlots().size() < MMOCore.plugin.boosterManager.getActive().size();
 				}
 			};
 
@@ -304,7 +303,7 @@ public class PlayerStats extends EditableInventory {
 		@Override
 		public ItemStack display(PlayerStatsInventory inv, int n) {
 			int offset = inv.boostOffset;
-			if (n + offset >= MMOCore.plugin.boosterManager.getBoosters().size())
+			if (n + offset >= MMOCore.plugin.boosterManager.getActive().size())
 				return noBoost.display(inv, n);
 
 			Booster boost = MMOCore.plugin.boosterManager.get(inv.boostOffset + n);

src/main/java/net/Indyuce/mmocore/gui/SkillList.java

@@ -5,8 +5,8 @@ import io.lumine.mythic.lib.api.item.ItemTag;
 import io.lumine.mythic.lib.api.item.NBTItem;
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
 import net.Indyuce.mmocore.api.util.MMOCoreUtils;
 import net.Indyuce.mmocore.gui.api.EditableInventory;
 import net.Indyuce.mmocore.gui.api.GeneratedInventory;

src/main/java/net/Indyuce/mmocore/gui/api/GeneratedInventory.java

@@ -1,16 +1,15 @@
 package net.Indyuce.mmocore.gui.api;
 
-import java.util.ArrayList;
+import io.lumine.mythic.lib.MythicLib;
-import java.util.List;
+import net.Indyuce.mmocore.api.player.PlayerData;
-
+import net.Indyuce.mmocore.gui.api.item.InventoryItem;
+import net.Indyuce.mmocore.gui.api.item.TriggerItem;
 import org.bukkit.Bukkit;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.inventory.Inventory;
 
-import net.Indyuce.mmocore.api.player.PlayerData;
+import java.util.ArrayList;
-import net.Indyuce.mmocore.gui.api.item.InventoryItem;
+import java.util.List;
-import net.Indyuce.mmocore.gui.api.item.TriggerItem;
-import io.lumine.mythic.lib.MythicLib;
 
 public abstract class GeneratedInventory extends PluginInventory {
 	private final EditableInventory editable;
@@ -44,9 +43,10 @@ public abstract class GeneratedInventory extends PluginInventory {
 		return null;
 	}
 
-	/*
+	/**
-	 * this method must use an ordered collection because of GUI items
+	 * This method must use an ordered collection because
-	 * overriding possibilities.
+	 * of GUI items overriding possibilities. Hence the use
+	 * of an array list instead of a set
 	 */
 	public void addLoaded(InventoryItem item) {
 		loaded.add(0, item);
@@ -66,7 +66,7 @@ public abstract class GeneratedInventory extends PluginInventory {
 	public void open() {
 
 		/*
-		 * very important, in order to prevent ghost items, the loaded items map
+		 * Very important, in order to prevent ghost items, the loaded items map
 		 * must be cleared when the inventory is updated or open at least twice
 		 */
 		loaded.clear();

src/main/java/net/Indyuce/mmocore/listener/SpellCast.java

@@ -13,7 +13,7 @@ import org.bukkit.scheduler.BukkitRunnable;
 
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
 import net.Indyuce.mmocore.manager.ConfigManager;
 import net.Indyuce.mmocore.manager.SoundManager;
 

src/main/java/net/Indyuce/mmocore/listener/option/PlayerProfileCheck.java

@@ -0,0 +1,29 @@
+package net.Indyuce.mmocore.listener.option;
+
+import io.lumine.mythic.lib.MythicLib;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.manager.InventoryManager;
+import org.bukkit.entity.EntityType;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerInteractEntityEvent;
+import org.bukkit.inventory.Inventory;
+
+public class PlayerProfileCheck implements Listener {
+
+    @EventHandler
+    public void a(PlayerInteractEntityEvent event) {
+        if (event.getRightClicked().getType() != EntityType.PLAYER || MythicLib.plugin.getEntities().findCustom(event.getRightClicked()))
+            return;
+
+        /*
+         * This works because the PlayerStats class DOES NOT utilize
+         * at all the player instance saved in the InventoryClickEvent
+         *
+         * Opening inventories like that to other players does NOT
+         * necessarily works for any other custom inventory.
+         * */
+        Inventory inv = InventoryManager.PLAYER_STATS.newInventory(PlayerData.get(event.getRightClicked().getUniqueId())).getInventory();
+        event.getPlayer().openInventory(inv);
+    }
+}

src/main/java/net/Indyuce/mmocore/manager/SkillManager.java

@@ -17,7 +17,7 @@ import org.bukkit.configuration.file.YamlConfiguration;
 
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.ConfigFile;
-import net.Indyuce.mmocore.api.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill;
 import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
 import net.Indyuce.mmocore.comp.mythicmobs.skill.MythicMobSkill;
 
@@ -36,7 +36,7 @@ public class SkillManager {
 				JarFile jarFile = new JarFile(MMOCore.plugin.getJarFile());
 				JarEntry entry;
 				for (Enumeration<JarEntry> en = jarFile.entries(); en.hasMoreElements();)
-					if ((entry = en.nextElement()).getName().startsWith("net/Indyuce/mmocore/skill/")
+					if ((entry = en.nextElement()).getName().startsWith("net/Indyuce/mmocore/skill/list/")
 							&& !entry.isDirectory() && !entry.getName().contains("$"))
 						register((Skill) Class.forName(entry.getName().replace("/", ".").replace(".class", ""))
 								.newInstance());

src/main/java/net/Indyuce/mmocore/manager/social/BoosterManager.java

@@ -41,7 +41,7 @@ public class BoosterManager {
 	/**
 	 * Cleans timed out boosters from the MMOCore registry
 	 */
-	public void flush() {
+	private void flush() {
 		map.removeIf(Booster::isTimedOut);
 	}
 
@@ -66,14 +66,7 @@ public class BoosterManager {
 	 * @return Collection of currently registered boosters. Some of them can be
 	 *         expired but are not unregistered yet!
 	 */
-	public List<Booster> getBoosters() {
+	public List<Booster> getActive() {
-		return map;
-	}
-
-	/**
-	 * @return Same as {@link #getBoosters()} but does not include timed out boosters
-	 */
-	public List<Booster> getActiveBoosters() {
 		return map.stream().filter((b) -> !b.isTimedOut()).collect(Collectors.toList());
 	}
 }

src/main/java/net/Indyuce/mmocore/skill/Ambers.java

@@ -1,88 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.event.PlayerResourceUpdateEvent;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.player.stats.StatType;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
-import org.bukkit.*;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.scheduler.BukkitRunnable;
-
-public class Ambers extends Skill implements Listener {
-	public Ambers() {
-		super();
-		setMaterial(Material.EMERALD);
-		setLore("Dealing magic damage has &630% &7chance", "of dropping an amber on the ground.", "", "When picked up, ambers stack and",
-				"refund &9{percent}% &7of your missing mana.", "", "&oAmbers can be used in other damaging skills.",
-				"&oThe more you collect, the more powerful the skills.", "", "&e{cooldown}s Cooldown");
-		setPassive();
-
-		addModifier("cooldown", new LinearValue(3, -.1, 1, 3));
-		addModifier("percent", new LinearValue(10, .1, 10, 20));
-
-		Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-	}
-
-	@EventHandler
-	public void a(PlayerAttackEvent event) {
-		PlayerData data = PlayerData.get(event.getData().getUniqueId());
-		if (!event.getAttack().hasType(DamageType.SKILL) || !data.getProfess().hasSkill(this))
-			return;
-
-		SkillResult cast = data.cast(this);
-		if (!cast.isSuccessful())
-			return;
-
-		Location loc = event.getEntity().getLocation();
-		double a = random.nextDouble() * 2 * Math.PI;
-
-		new Amber(data, loc.add(0, event.getEntity().getHeight() / 2, 0), loc.clone().add(4 * Math.cos(a), 0, 4 * Math.sin(a)), cast.getModifier("percent"));
-	}
-
-	public static class Amber extends BukkitRunnable {
-		private final Location loc;
-		private final PlayerData data;
-		private final double percent;
-
-		private int j;
-
-		private Amber(PlayerData data, Location source, Location loc, double percent) {
-			this.loc = loc;
-			this.data = data;
-			this.percent = percent / 100;
-
-			final Amber amber = this;
-			new ParabolicProjectile(source, loc, Particle.REDSTONE, () -> amber.runTaskTimer(MMOCore.plugin, 0, 3), 1, Color.ORANGE, 1.3f);
-		}
-
-		@Override
-		public void run() {
-			if(!data.isOnline()) return;
-			if (j++ > 66 || !data.getPlayer().getWorld().equals(loc.getWorld())) {
-				cancel();
-				return;
-			}
-
-			if (data.getPlayer().getLocation().distanceSquared(loc) < 2) {
-
-				data.getPlayer().playSound(data.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
-				// data.getSkillData().ambers++;
-				data.giveMana((data.getStats().getStat(StatType.MAX_MANA) - data.getMana()) * percent, PlayerResourceUpdateEvent.UpdateReason.SKILL_REGENERATION);
-
-				cancel();
-				return;
-			}
-
-			for (int j = 0; j < 5; j++)
-				loc.getWorld().spawnParticle(Particle.SPELL_MOB, loc, 0, 1, 0.647, 0, 1);
-			loc.getWorld().spawnParticle(Particle.REDSTONE, loc, 1, new Particle.DustOptions(Color.ORANGE, 1.3f));
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Backstab.java

@@ -1,51 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-
-public class Backstab extends Skill implements Listener {
-	public Backstab() {
-		super();
-		setMaterial(Material.FLINT);
-		setLore("Backstabs deal &c{extra}%&7 damage.", "", "&9Costs {mana} {mana_name}");
-		setPassive();
-
-		addModifier("cooldown", new LinearValue(0, 0));
-		addModifier("mana", new LinearValue(8, 1));
-		addModifier("extra", new LinearValue(50, 20));
-		
-		Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-	}
-
-	@EventHandler
-	public void a(PlayerAttackEvent event) {
-		PlayerData data = PlayerData.get(event.getData().getUniqueId());
-		LivingEntity target = event.getEntity();
-		if (data.isInCombat() || !event.getAttack().hasType(DamageType.WEAPON)
-				|| event.getPlayer().getEyeLocation().getDirection().angle(target.getEyeLocation().getDirection()) > Math.PI / 6
-				|| !data.getProfess().hasSkill(this))
-			return;
-
-		SkillResult cast = data.cast(this);
-		if (!cast.isSuccessful())
-			return;
-
-		data.cast(cast.getInfo());
-		event.getAttack().multiplyDamage(1 + cast.getModifier("extra") / 100);
-		target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .05);
-		target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ENDERMAN_HURT, 1, 1.5f);
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/CasterMetadata.java

@@ -0,0 +1,57 @@
+package net.Indyuce.mmocore.skill;
+
+import io.lumine.mythic.lib.MythicLib;
+import io.lumine.mythic.lib.api.player.EquipmentSlot;
+import io.lumine.mythic.lib.api.stat.StatMap;
+import io.lumine.mythic.lib.damage.AttackMetadata;
+import io.lumine.mythic.lib.damage.DamageMetadata;
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+
+public class CasterMetadata {
+    private final Player player;
+    private final PlayerData caster;
+    private final StatMap.CachedStatMap stats;
+
+    /**
+     * Instantiated every time a player casts a skill. This is
+     * used to temporarily cache the player's statistics
+     *
+     * @param caster Player casting the skill
+     */
+    public CasterMetadata(PlayerData caster) {
+        this.player = caster.getPlayer();
+        this.caster = caster;
+        this.stats = caster.getMMOPlayerData().getStatMap().cache(EquipmentSlot.MAIN_HAND);
+    }
+
+    public Player getPlayer() {
+        return player;
+    }
+
+    public PlayerData getPlayerData() {
+        return caster;
+    }
+
+    public StatMap.CachedStatMap getStats() {
+        return stats;
+    }
+
+    /**
+     * Utility method that makes a player deal damage to a specific
+     * entity. This creates the attackMetadata based on the data
+     * stored by the CasterMetadata, and calls it using MythicLib
+     * damage manager
+     *
+     * @param target Target entity
+     * @param damage Damage dealt
+     * @param types  Type of target
+     * @return
+     */
+    public void attack(LivingEntity target, double damage, DamageType... types) {
+        AttackMetadata attackMeta = new AttackMetadata(new DamageMetadata(damage, types), stats);
+        MythicLib.plugin.getDamage().damage(attackMeta, target);
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/Combo_Attack.java

@@ -1,59 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-
-public class Combo_Attack extends Skill {
-	public Combo_Attack() {
-		super();
-		setMaterial(Material.IRON_SWORD);
-		setLore("Violenty slashes your target &8{count}", "times for a total of &8{damage} &7damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
-		addModifier("damage", new LinearValue(9, .3));
-		addModifier("count", new LinearValue(3, .2));
-		addModifier("mana", new LinearValue(10, -.1, 3, 5));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 3);
-		if (!cast.isSuccessful())
-			return cast;
-
-		new BukkitRunnable() {
-			final int count = (int) cast.getModifier("count");
-			final double damage = cast.getModifier("damage") / count;
-			final LivingEntity target = cast.getTarget();
-
-			int c;
-
-			@Override
-			public void run() {
-				if(!data.isOnline()) return;
-				if (c++ > count) {
-					cancel();
-					return;
-				}
-
-				target.getWorld().playSound(target.getLocation(), Sound.ENTITY_PLAYER_ATTACK_KNOCKBACK, 1, 2);
-				target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 24, 0, 0, 0, .7);
-				MythicLib.plugin.getDamage().damage(data.getPlayer(), target, new AttackResult(damage, DamageType.SKILL, DamageType.PHYSICAL));
-			}
-		}.runTaskTimer(MMOCore.plugin, 0, 5);
-		return cast;
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Control.java

@@ -1,106 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.HandlerList;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerInteractEvent;
-import org.bukkit.potion.PotionEffect;
-import org.bukkit.potion.PotionEffectType;
-import org.bukkit.scheduler.BukkitRunnable;
-import org.bukkit.util.Vector;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.version.VersionMaterial;
-import io.lumine.mythic.lib.version.VersionSound;
-
-public class Control extends Skill {
-	public Control() {
-		super();
-		setMaterial(VersionMaterial.MAGENTA_DYE.toMaterial());
-		setLore("Your target is temporarily slowed for &8{duration} &7seconds.", "As soon as you left click, it gets", "pushed back where you are looking at.", "Knockback force: &f{knockback}%", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(18, -.3, 10, 20));
-		addModifier("mana", new LinearValue(15, 1.5));
-		addModifier("knockback", new LinearValue(30, 3));
-		addModifier("duration", new LinearValue(2, 0));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 7);
-		if (!cast.isSuccessful())
-			return cast;
-
-		if(data.isOnline())
-			data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
-		cast.getTarget().addPotionEffect(new PotionEffect(PotionEffectType.SLOW, 20 * 2, 0));
-		new TelekinesyRunnable(data, cast.getTarget(), cast.getModifier("knockback") / 100, cast.getModifier("duration"));
-		return cast;
-	}
-
-	public static class TelekinesyRunnable extends BukkitRunnable implements Listener {
-		private final LivingEntity entity;
-		private final PlayerData data;
-
-		private final double f, d;
-
-		private int j;
-
-		public TelekinesyRunnable(PlayerData data, LivingEntity entity, double force, double duration) {
-			this.entity = entity;
-			this.data = data;
-
-			d = duration * 20;
-			f = force;
-
-			runTaskTimer(MMOCore.plugin, 0, 1);
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-		}
-
-		@EventHandler
-		public void a(PlayerInteractEvent event) {
-			if(!data.isOnline()) return;
-			if (event.getPlayer().equals(data.getPlayer()) && event.getAction().name().contains("LEFT_CLICK")) {
-				Vector vec = data.getPlayer().getEyeLocation().getDirection().multiply(3 * f);
-				vec.setY(Math.max(.5, vec.getY() / 2));
-				entity.setVelocity(vec);
-
-				/*
-				 * try not to interfere with other potion effects
-				 */
-				PotionEffect effect = entity.getPotionEffect(PotionEffectType.SLOW);
-				if (effect.getDuration() < d && effect.getAmplifier() == 0)
-					entity.removePotionEffect(PotionEffectType.SLOW);
-
-				entity.getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(0, entity.getHeight() / 2, 0), 16);
-				entity.getWorld().playSound(entity.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 2, 1);
-				close();
-			}
-		}
-
-		@Override
-		public void run() {
-			if (!data.isOnline() || entity.isDead() || j++ >= d) {
-				close();
-				return;
-			}
-
-			double a = (double) j / 3;
-			entity.getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(Math.cos(a), entity.getHeight() / 2, Math.sin(a)), 0);
-		}
-
-		private void close() {
-			cancel();
-			HandlerList.unregisterAll(this);
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Deep_Wound.java

@@ -1,50 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.attribute.Attribute;
-import org.bukkit.entity.LivingEntity;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-
-public class Deep_Wound extends Skill {
-	public Deep_Wound() {
-		super();
-		setMaterial(Material.REDSTONE);
-		setLore("You puncture your target, dealing &c{damage} &7damage.", "Damage is increased up to &c+{extra}% &7based",
-				"on your target's missing health.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
-		addModifier("mana", new LinearValue(8, 3));
-		addModifier("damage", new LinearValue(5, 1.5));
-		addModifier("extra", new LinearValue(50, 20));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 3);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		LivingEntity target = cast.getTarget();
-		target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ZOMBIE_ATTACK_IRON_DOOR, 2, 2);
-		target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .7);
-		target.getWorld().spawnParticle(Particle.BLOCK_CRACK, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, 2,
-				Material.REDSTONE_BLOCK.createBlockData());
-
-		double max = target.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
-		double ratio = (max - target.getHealth()) / max;
-
-		double damage = cast.getModifier("damage") * (1 + cast.getModifier("extra") * ratio / 100);
-		MythicLib.plugin.getDamage().damage(data.getPlayer(), target, new AttackResult(damage, DamageType.SKILL, DamageType.PHYSICAL));
-		return cast;
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Empowered_Attack.java

@@ -1,122 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-import io.lumine.mythic.lib.version.VersionMaterial;
-import io.lumine.mythic.lib.version.VersionSound;
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
-import org.bukkit.Bukkit;
-import org.bukkit.Location;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.util.Vector;
-
-public class Empowered_Attack extends Skill {
-	private static final double perb = 5;
-
-	public Empowered_Attack() {
-		super();
-		setMaterial(VersionMaterial.BONE_MEAL.toMaterial());
-		setLore("You charge your weapon with lightning.", "Your next attack deals &f{extra}% &7extra damage", "and spreads to enemies within &f{radius} &7blocks", "for &f{ratio}% &7of the initial damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(10, -.2, 5, 10));
-		addModifier("mana", new LinearValue(4, 1));
-		addModifier("radius", new LinearValue(4, 0));
-		addModifier("ratio", new LinearValue(30, 10, 30, 100));
-		addModifier("extra", new LinearValue(30, 8));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		SkillResult cast = new SkillResult(data, skill);
-		if (!cast.isSuccessful())
-			return cast;
-
-		if(data.isOnline())
-			data.getPlayer().playSound(data.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
-		new EmpoweredAttack(data, cast.getModifier("extra"), cast.getModifier("ratio"), cast.getModifier("radius"));
-		return cast;
-	}
-
-	private void drawVector(Location loc, Vector vec) {
-
-		double steps = vec.length() * perb;
-		Vector v = vec.clone().normalize().multiply((double) 1 / perb);
-
-		for (int j = 0; j < Math.min(steps, 124); j++)
-			loc.getWorld().spawnParticle(Particle.FIREWORKS_SPARK, loc.add(v), 0);
-	}
-
-	public class EmpoweredAttack implements Listener {
-		private final PlayerData player;
-		private final double c, r, rad;
-
-		public EmpoweredAttack(PlayerData player, double extra, double ratio, double radius) {
-			this.player = player;
-			this.c = 1 + extra / 100;
-			this.r = ratio / 100;
-			this.rad = radius;
-
-			if(player.isOnline())
-				new SmallParticleEffect(player.getPlayer(), Particle.FIREWORKS_SPARK);
-
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-			Bukkit.getScheduler().scheduleSyncDelayedTask(MMOCore.plugin, this::close, 80);
-		}
-
-		private void close() {
-			PlayerAttackEvent.getHandlerList().unregister(this);
-		}
-
-		@EventHandler
-		public void a(PlayerAttackEvent event) {
-			if(!player.isOnline()) return;
-			if (event.getPlayer().equals(player.getPlayer()) && event.getAttack().hasType(DamageType.WEAPON)) {
-				close();
-
-				Entity target = event.getEntity();
-
-				/*
-				 * play lightning effect
-				 */
-				final Location loc = target.getLocation().add(0, target.getHeight() / 2, 0);
-				for (int j = 0; j < 3; j++) {
-					Location clone = loc.clone();
-					double a = random.nextDouble() * Math.PI * 2;
-					loc.add(Math.cos(a), 5, Math.sin(a));
-					drawVector(clone, loc.clone().subtract(clone).toVector());
-				}
-
-				target.getWorld().playSound(target.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 2, .5f);
-				target.getWorld().spawnParticle(Particle.FIREWORKS_SPARK, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .2);
-
-				double sweep = event.getAttack().getDamage() * r;
-				Location src = target.getLocation().add(0, target.getHeight() / 2, 0);
-
-				for (Entity entity : target.getNearbyEntities(rad, rad, rad))
-					if (MMOCoreUtils.canTarget(player, entity)) {
-						drawVector(src, entity.getLocation().add(0, entity.getHeight() / 2, 0).subtract(src).toVector());
-						MythicLib.plugin.getDamage().damage(player.getPlayer(), (LivingEntity) entity, new AttackResult(sweep, DamageType.SKILL, DamageType.PHYSICAL));
-					}
-
-				/*
-				 * apply damage afterwards otherwise the damage dealt to nearby
-				 * entities scale with the extra ability damage.
-				 */
-				event.getAttack().multiplyDamage(1 + c);
-			}
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Evade.java

@@ -1,84 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.entity.EntityDamageEvent;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-import io.lumine.mythic.lib.version.VersionSound;
-
-public class Evade extends Skill {
-	public Evade() {
-		super();
-		setMaterial(Material.LEATHER_BOOTS);
-		setLore("You become imune to damage for &8{duration} &7seconds.", "Cancels when dealing weapon damage.", "", "&e{cooldown}s Cooldown",
-				"&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(20, 0));
-		addModifier("mana", new LinearValue(8, 3));
-		addModifier("duration", new LinearValue(2, .3, 2, 10));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		SkillResult cast = new SkillResult(data, skill);
-		if (!cast.isSuccessful())
-			return cast;
-		if(data.isOnline()) {
-			data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), VersionSound.ENTITY_ENDERMAN_TELEPORT.toSound(), 1, 2);
-			new SmallParticleEffect(data.getPlayer(), Particle.CLOUD);
-		}
-		new EvadeSkill(data, cast.getModifier("duration"));
-		return cast;
-	}
-
-	private static class EvadeSkill extends BukkitRunnable implements Listener {
-		private final PlayerData data;
-
-		public EvadeSkill(PlayerData data, double duration) {
-			this.data = data;
-
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-			runTaskTimer(MMOCore.plugin, 0, 1);
-			Bukkit.getScheduler().runTaskLater(MMOCore.plugin, this::close, (long) (duration * 20));
-		}
-
-		private void close() {
-			cancel();
-			EntityDamageEvent.getHandlerList().unregister(this);
-		}
-
-		@EventHandler(priority = EventPriority.LOW)
-		public void a(EntityDamageEvent event) {
-			if(!data.isOnline()) return;
-			if (event.getEntity().equals(data.getPlayer()))
-				event.setCancelled(true);
-		}
-
-		@EventHandler(priority = EventPriority.HIGHEST)
-		public void b(PlayerAttackEvent event) {
-			if (event.getAttack().hasType(DamageType.WEAPON) && !event.isCancelled() && PlayerData.get(event.getData().getUniqueId()).equals(data))
-				close();
-		}
-
-		@Override
-		public void run() {
-			if (!data.isOnline() || data.getPlayer().isDead())
-				close();
-			else
-				data.getPlayer().getWorld().spawnParticle(Particle.CLOUD, data.getPlayer().getLocation().add(0, 1, 0), 0);
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Fire_Berserker.java

@@ -1,39 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import java.util.Optional;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Material;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-
-public class Fire_Berserker extends Skill implements Listener {
-	public Fire_Berserker() {
-		super();
-		setMaterial(Material.FLINT_AND_STEEL);
-		setLore("You deal &c{extra}% &7more damage when on fire.");
-		setPassive();
-
-		addModifier("extra", new LinearValue(10, 5));
-		// addModifier("duration", new LinearValue(10, .1));
-		// addModifier("cooldown", new LinearValue(30, 0));
-
-		Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-	}
-
-	@EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
-	public void a(PlayerAttackEvent event) {
-		PlayerData data = PlayerData.get(event.getData().getUniqueId());
-		if (event.getPlayer().getFireTicks() > 0) {
-			Optional<SkillInfo> skill = data.getProfess().findSkill(this);
-			skill.ifPresent(skillInfo -> event.getAttack().multiplyDamage(1 + skillInfo.getModifier("extra", data.getSkillLevel(this)) / 100));
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Fire_Rage.java

@@ -1,165 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Location;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.HandlerList;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerInteractEvent;
-import org.bukkit.potion.PotionEffect;
-import org.bukkit.potion.PotionEffectType;
-import org.bukkit.scheduler.BukkitRunnable;
-import org.bukkit.util.Vector;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-import net.Indyuce.mmocore.api.util.math.VectorRotation;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.version.VersionMaterial;
-import io.lumine.mythic.lib.version.VersionSound;
-
-public class Fire_Rage extends Skill {
-	public Fire_Rage() {
-		super();
-		setMaterial(VersionMaterial.FIRE_CHARGE.toMaterial());
-		setLore("For {duration} seconds, you slow down and are able", "to cast up to {count} fireballs by left clicking.", "", "Fireballs deal &c{damage} &7damage upon contact", "and ignite your target for &c{ignite} &7seconds.", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("duration", new LinearValue(8, 0));
-		addModifier("count", new LinearValue(4, 0));
-		addModifier("mana", new LinearValue(15, 1));
-		addModifier("damage", new LinearValue(5, 3));
-		addModifier("ignite", new LinearValue(2, .1));
-		addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		SkillResult cast = new SkillResult(data, skill);
-		if (!cast.isSuccessful())
-			return cast;
-
-		new Rage(data, cast);
-		return cast;
-	}
-
-	public static class Rage extends BukkitRunnable implements Listener {
-		private final PlayerData data;
-		private final int count, ignite;
-		private final double damage;
-
-		private int c;
-		private double b;
-		private long last = System.currentTimeMillis();
-
-		/*
-		 * time the player needs to wait before firing two fireballs.
-		 */
-		private static final long timeOut = 700;
-
-		public Rage(PlayerData data, SkillResult cast) {
-			this.data = data;
-			this.ignite = (int) (20 * cast.getModifier("ignite"));
-			this.damage = cast.getModifier("damage");
-			c = count = (int) cast.getModifier("count");
-
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-			Bukkit.getScheduler().runTaskLater(MMOCore.plugin, this::close, (long) (cast.getModifier("duration") * 20));
-			runTaskTimer(MMOCore.plugin, 0, 1);
-
-			if(data.isOnline()) {
-				data.getPlayer().removePotionEffect(PotionEffectType.SLOW);
-				data.getPlayer().addPotionEffect(new PotionEffect(PotionEffectType.SLOW, (int) (cast.getModifier("duration") * 20), 1));
-			}
-		}
-
-		@EventHandler
-		public void a(PlayerInteractEvent event) {
-			if(!data.isOnline()) return;
-			if (event.getPlayer().equals(data.getPlayer()) && event.getAction().name().contains("LEFT_CLICK") && (System.currentTimeMillis() - last) > timeOut) {
-				last = System.currentTimeMillis();
-				castEffect();
-				fireball(c < 2);
-				if (c-- < 2)
-					close();
-			}
-		}
-
-		private void castEffect() {
-			if(!data.isOnline()) return;
-			VectorRotation rotation = new VectorRotation(data.getPlayer().getEyeLocation());
-			for (double a = 0; a < Math.PI * 2; a += Math.PI / 13) {
-				Vector vec = rotation.rotate(new Vector(Math.cos(a), Math.sin(a), 0)).add(data.getPlayer().getEyeLocation().getDirection().multiply(.5)).multiply(.3);
-				data.getPlayer().getWorld().spawnParticle(Particle.FLAME, data.getPlayer().getLocation().add(0, 1.3, 0).add(data.getPlayer().getEyeLocation().getDirection().multiply(.5)), 0, vec.getX(), vec.getY(), vec.getZ(), .3);
-			}
-		}
-
-		private void close() {
-			if (isCancelled())
-				return;
-
-			cancel();
-			HandlerList.unregisterAll(this);
-		}
-
-		private void fireball(boolean last) {
-			if(!data.isOnline()) return;
-			if (last) {
-				data.getPlayer().removePotionEffect(PotionEffectType.SLOW);
-				data.getPlayer().removePotionEffect(PotionEffectType.SLOW);
-			}
-
-			data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 1, last ? 0 : 1);
-			new BukkitRunnable() {
-				int j = 0;
-				final Vector vec = data.getPlayer().getEyeLocation().getDirection();
-				final Location loc = data.getPlayer().getLocation().add(0, 1.3, 0);
-
-				public void run() {
-					if (j++ > 40)
-						cancel();
-
-					loc.add(vec);
-
-					if (j % 2 == 0)
-						loc.getWorld().playSound(loc, Sound.BLOCK_FIRE_AMBIENT, 2, 1);
-					loc.getWorld().spawnParticle(Particle.FLAME, loc, 4, .1, .1, .1, 0);
-					loc.getWorld().spawnParticle(Particle.LAVA, loc, 0);
-
-					for (Entity target : MMOCoreUtils.getNearbyChunkEntities(loc))
-						if (MythicLib.plugin.getVersion().getWrapper().isInBoundingBox(target, loc) && MMOCoreUtils.canTarget(data, target)) {
-							loc.getWorld().spawnParticle(Particle.LAVA, loc, 8);
-							loc.getWorld().spawnParticle(Particle.FLAME, loc, 32, 0, 0, 0, .1);
-							loc.getWorld().playSound(loc, Sound.ENTITY_BLAZE_HURT, 2, 1);
-							target.setFireTicks(target.getFireTicks() + ignite);
-							MythicLib.plugin.getDamage().damage(data.getPlayer(), (LivingEntity) target, new AttackResult(damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC));
-							cancel();
-						}
-				}
-			}.runTaskTimer(MMOCore.plugin, 0, 1);
-		}
-
-		@Override
-		public void run() {
-			if (data.getPlayer().isDead() || !data.getPlayer().isOnline()) {
-				close();
-				return;
-			}
-
-			b += Math.PI / 30;
-			for (int j = 0; j < c; j++) {
-				double a = Math.PI * 2 * j / count + b;
-				data.getPlayer().spawnParticle(Particle.FLAME, data.getPlayer().getLocation().add(Math.cos(a) * 1.5, 1 + Math.sin(a * 1.5) * .7, Math.sin(a) * 1.5), 0);
-			}
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Fireball.java

@@ -1,105 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.MMORayTraceResult;
-import io.lumine.mythic.lib.version.VersionMaterial;
-import io.lumine.mythic.lib.version.VersionSound;
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import org.bukkit.Location;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.scheduler.BukkitRunnable;
-import org.bukkit.util.Vector;
-
-public class Fireball extends Skill {
-	public Fireball() {
-		super();
-		setMaterial(VersionMaterial.FIRE_CHARGE.toMaterial());
-		setLore("Casts a deadly fireball onto your", "target, dealing &c{damage} &7damage upon contact", "and igniting it for &c{ignite} &7seconds.", "", "Shatters into 3 blazing hot shards which stick", "to walls and explode 3 seconds later, dealing", "&c{ratio}% &7of the initial spell damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("mana", new LinearValue(15, 1));
-		addModifier("damage", new LinearValue(5, 3));
-		addModifier("ignite", new LinearValue(2, .1));
-		addModifier("ratio", new LinearValue(50, 3));
-		addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		SkillResult cast = new SkillResult(data, skill);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 1, 1);
-		new BukkitRunnable() {
-			int j = 0;
-			final Vector vec = data.getPlayer().getEyeLocation().getDirection();
-			final Location loc = data.getPlayer().getLocation().add(0, 1.3, 0);
-
-			public void run() {
-				if (j++ > 40) {
-					cancel();
-					return;
-				}
-
-				loc.add(vec);
-
-				if (j % 3 == 0)
-					loc.getWorld().playSound(loc, Sound.BLOCK_FIRE_AMBIENT, 2, 1);
-				loc.getWorld().spawnParticle(Particle.FLAME, loc, 4, .02, .02, .02, 0);
-				loc.getWorld().spawnParticle(Particle.LAVA, loc, 0);
-
-				for (Entity target : MMOCoreUtils.getNearbyChunkEntities(loc))
-					if (MythicLib.plugin.getVersion().getWrapper().isInBoundingBox(target, loc) && MMOCoreUtils.canTarget(data, target)) {
-						loc.getWorld().spawnParticle(Particle.LAVA, loc, 8);
-						loc.getWorld().spawnParticle(Particle.FLAME, loc, 32, 0, 0, 0, .1);
-						loc.getWorld().playSound(loc, Sound.ENTITY_BLAZE_HURT, 2, 1);
-						target.setFireTicks((int) (target.getFireTicks() + cast.getModifier("ignite") * 20));
-						double damage = cast.getModifier("damage");
-						MythicLib.plugin.getDamage().damage(data.getPlayer(), (LivingEntity) target, new AttackResult(damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC));
-
-						new BukkitRunnable() {
-							int i = 0;
-
-							@Override
-							public void run() {
-								if (i++ > 2) {
-									cancel();
-									return;
-								}
-
-								double range = 2.5 * (1 + random.nextDouble());
-								Vector dir = randomDirection();
-								loc.getWorld().playSound(loc, Sound.ENTITY_BLAZE_HURT, 2, 1.5f);
-
-								MMORayTraceResult result = MythicLib.plugin.getVersion().getWrapper().rayTrace(loc, dir, range, entity -> MMOCoreUtils.canTarget(data, entity));
-								if (result.hasHit())
-									MythicLib.plugin.getDamage().damage(data.getPlayer(), result.getHit(), new AttackResult(damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC));
-								result.draw(loc.clone(), dir, 8, tick -> tick.getWorld().spawnParticle(Particle.FLAME, tick, 0));
-
-							}
-						}.runTaskTimer(MMOCore.plugin, 3, 3);
-
-						cancel();
-						return;
-					}
-			}
-		}.runTaskTimer(MMOCore.plugin, 0, 1);
-		return cast;
-	}
-
-	private Vector randomDirection() {
-		double x = random.nextDouble() - .5, y = (random.nextDouble() - .2) / 2, z = random.nextDouble() - .5;
-		Vector dir = new Vector(x, y, z);
-		return dir.lengthSquared() == 0 ? new Vector(1, 0, 0) : dir.normalize();
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Furtive_Strike.java

@@ -1,53 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.LivingEntity;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-
-public class Furtive_Strike extends Skill {
-	public Furtive_Strike() {
-		super();
-		setMaterial(Material.COAL);
-		setLore("Deals &c{damage} &7damage, increased by &c{extra}% &7if", "there are not any enemies within &c{radius} &7blocks.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
-		addModifier("mana", new LinearValue(8, 3));
-		addModifier("damage", new LinearValue(5, 1.5));
-		addModifier("extra", new LinearValue(50, 20));
-		addModifier("radius", new LinearValue(7, 0));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 3);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		LivingEntity target = cast.getTarget();
-		target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ZOMBIE_ATTACK_IRON_DOOR, 2, 1.5f);
-		target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .5);
-		target.getWorld().spawnParticle(Particle.SMOKE_NORMAL, target.getLocation().add(0, target.getHeight() / 2, 0), 64, 0, 0, 0, .08);
-
-		double damage = cast.getModifier("damage");
-
-		double radius = cast.getModifier("radius");
-		if (target.getNearbyEntities(radius, radius, radius).stream().allMatch(entity -> entity.equals(data.getPlayer()))) {
-			new SmallParticleEffect(target, Particle.SPELL_WITCH);
-			damage *= 1 + cast.getModifier("extra") / 100;
-		}
-
-		MythicLib.plugin.getDamage().damage(data.getPlayer(), target, new AttackResult(damage, DamageType.SKILL, DamageType.PHYSICAL));
-		return cast;
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Greater_Healings.java

@@ -1,42 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.attribute.Attribute;
-import org.bukkit.entity.LivingEntity;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
-
-public class Greater_Healings extends Skill {
-	public Greater_Healings() {
-		super();
-		setMaterial(Material.GOLDEN_APPLE);
-		setLore("Instantly grants &a{heal} &7HP to the", "target. Sneak to cast it on yourself.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("mana", new LinearValue(4, 2));
-		addModifier("heal", new LinearValue(10, 4));
-		addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		SkillResult cast = data.getPlayer().isSneaking() ? new SkillResult(data, skill) : new TargetSkillResult(data, skill, 50, true);
-		if (!cast.isSuccessful())
-			return cast;
-
-		LivingEntity target = cast instanceof TargetSkillResult ? ((TargetSkillResult) cast).getTarget() : data.getPlayer();
-
-		double max = target.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
-		target.setHealth(Math.min(max, target.getHealth() + cast.getModifier("heal")));
-
-		new SmallParticleEffect(target, Particle.HEART, 1);
-		target.getWorld().playSound(target.getLocation(), Sound.ENTITY_PLAYER_LEVELUP, 2, 2);
-		return cast;
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Human_Shield.java

@@ -1,105 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.attribute.Attribute;
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.HandlerList;
-import org.bukkit.event.Listener;
-import org.bukkit.event.entity.EntityDamageEvent;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.version.VersionMaterial;
-
-public class Human_Shield extends Skill {
-	public Human_Shield() {
-		super();
-		setMaterial(VersionMaterial.TOTEM_OF_UNDYING.toMaterial());
-		setLore("Casts a protection charm onto target ally,", "reducing damage taken by &a{reduction}%&7.", "&a{redirect}% &7of this damage is redirected to you.", "Charm is cancelled when reaching &c{low}%&7 health.", "Lasts &a{duration} &7seconds.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(18, -.3, 14, 18));
-		addModifier("mana", new LinearValue(15, 1.5));
-		addModifier("reduction", new LinearValue(30, 3, 30, 70));
-		addModifier("redirect", new LinearValue(30, -2, 20, 30));
-		addModifier("duration", new LinearValue(7, 0));
-		addModifier("low", new LinearValue(10, 0));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 7, true);
-		if (!cast.isSuccessful())
-			return cast;
-
-		if (!(cast.getTarget() instanceof Player)) {
-			cast.abort();
-			return cast;
-		}
-
-		data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), Sound.ENTITY_BLAZE_AMBIENT, 1, 1);
-		new HumanShield(data, (Player) cast.getTarget(), cast.getModifier("reduction"), cast.getModifier("redirect"), cast.getModifier("duration"), cast.getModifier("low"));
-		return cast;
-	}
-
-	public static class HumanShield extends BukkitRunnable implements Listener {
-		private final PlayerData data;
-		private final Player target;
-		private final double r, rd, d, l;
-
-		private int j;
-
-		public HumanShield(PlayerData data, Player target, double reduction, double redirect, double duration, double low) {
-			this.target = target;
-			this.data = data;
-
-			r = 1 - Math.min(1, reduction / 100);
-			rd = redirect / 100;
-			d = duration * 20;
-			l = low / 100;
-
-			runTaskTimer(MMOCore.plugin, 0, 1);
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-		}
-
-		@EventHandler
-		public void a(EntityDamageEvent event) {
-			if (event.getEntity().equals(target)) {
-
-				double damage = event.getDamage() * r;
-				event.setDamage(damage);
-
-				double health = data.getPlayer().getHealth() - damage * rd;
-				if (health > data.getPlayer().getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue() * l)
-					data.getPlayer().setHealth(health);
-				else {
-					data.getPlayer().setHealth(1);
-					close();
-				}
-			}
-		}
-
-		@Override
-		public void run() {
-			if (!data.isOnline() || data.getPlayer().isDead() || !target.isOnline() || target.isDead() || j++ >= d) {
-				close();
-				return;
-			}
-
-			double a = (double) j / 5;
-			target.getWorld().spawnParticle(Particle.VILLAGER_HAPPY, target.getLocation().add(Math.cos(a), 1 + Math.sin(a / 3) / 1.3, Math.sin(a)), 0);
-		}
-
-		private void close() {
-			cancel();
-			HandlerList.unregisterAll(this);
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Ice_Spikes.java

@@ -1,80 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Location;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.potion.PotionEffect;
-import org.bukkit.potion.PotionEffectType;
-import org.bukkit.scheduler.BukkitRunnable;
-import org.bukkit.util.Vector;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.LocationSkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-import net.Indyuce.mmocore.api.util.math.Line3D;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.version.VersionMaterial;
-
-public class Ice_Spikes extends Skill {
-	private static final double radius = 3;
-
-	public Ice_Spikes() {
-		super();
-		setMaterial(VersionMaterial.SNOWBALL.toMaterial());
-		setLore("Ice spikes summon from the ground", "and shatter, each dealing &9{damage} &7damage", "to hit enemies and slowing them down", "for &9{slow} &7seconds.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(6, -.1, 2, 6));
-		addModifier("mana", new LinearValue(20, 2));
-		addModifier("damage", new LinearValue(3, 1));
-		addModifier("slow", new LinearValue(4, 0));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		LocationSkillResult cast = new LocationSkillResult(data, skill, 20);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		Location loc = cast.getHit();
-		double damage = cast.getModifier("damage");
-		int slow = (int) (20 * cast.getModifier("slow"));
-
-		new BukkitRunnable() {
-			int j = 0;
-
-			@Override
-			public void run() {
-
-				if (j++ > 8) {
-					cancel();
-					return;
-				}
-
-				Location loc1 = loc.clone().add(offset() * radius, 0, offset() * radius).add(0, 2, 0);
-				loc.getWorld().spawnParticle(Particle.FIREWORKS_SPARK, loc1, 32, 0, 2, 0, 0);
-				loc.getWorld().spawnParticle(Particle.SNOWBALL, loc1, 32, 0, 2, 0, 0);
-				loc.getWorld().playSound(loc1, Sound.BLOCK_GLASS_BREAK, 2, 0);
-
-				Line3D line = new Line3D(loc.toVector(), loc.toVector().add(new Vector(0, 1, 0)));
-				for (Entity entity : MMOCoreUtils.getNearbyChunkEntities(loc1))
-					if (line.distanceSquared(entity.getLocation().toVector()) < radius && Math.abs(entity.getLocation().getY() - loc1.getY()) < 10 && MMOCoreUtils.canTarget(data, entity)) {
-						MythicLib.plugin.getDamage().damage(data.getPlayer(), (LivingEntity) entity, new AttackResult(damage, DamageType.SKILL, DamageType.MAGIC));
-						((LivingEntity) entity).addPotionEffect(new PotionEffect(PotionEffectType.SLOW, slow, 0));
-					}
-			}
-		}.runTaskTimer(MMOCore.plugin, 0, 5);
-		return cast;
-	}
-
-	private double offset() {
-		return random.nextDouble() * (random.nextBoolean() ? 1 : -1);
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Minor_Healings.java

@@ -1,42 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.attribute.Attribute;
-import org.bukkit.entity.LivingEntity;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
-
-public class Minor_Healings extends Skill {
-	public Minor_Healings() {
-		super();
-		setMaterial(Material.GOLDEN_APPLE);
-		setLore("Instantly grants &a{heal} &7HP to the", "target. Sneak to cast it on yourself.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("mana", new LinearValue(4, 2));
-		addModifier("heal", new LinearValue(4, 2));
-		addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		SkillResult cast = data.getPlayer().isSneaking() ? new SkillResult(data, skill) : new TargetSkillResult(data, skill, 50, true);
-		if (!cast.isSuccessful())
-			return cast;
-
-		LivingEntity target = cast instanceof TargetSkillResult ? ((TargetSkillResult) cast).getTarget() : data.getPlayer();
-
-		double max = target.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
-		target.setHealth(Math.min(max, target.getHealth() + cast.getModifier("heal")));
-
-		new SmallParticleEffect(target, Particle.HEART, 1);
-		target.getWorld().playSound(target.getLocation(), Sound.ENTITY_PLAYER_LEVELUP, 2, 2);
-		return cast;
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/PassiveSkill.java

@@ -0,0 +1,19 @@
+package net.Indyuce.mmocore.skill;
+
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.event.Listener;
+
+public class PassiveSkill extends Skill implements Listener {
+    public PassiveSkill() {
+        super();
+    }
+
+    public PassiveSkill(String id) {
+        super(id);
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata casterMeta, SkillInfo skill) {
+        return new SkillMetadata(casterMeta, skill);
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/PlayerSkillData.java

@@ -1,11 +1,13 @@
-package net.Indyuce.mmocore.api.skill;
+package net.Indyuce.mmocore.skill;
 
 import java.util.HashMap;
 import java.util.Map;
 
+import io.lumine.mythic.utils.cooldown.CooldownMap;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill.SkillInfo;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
 import net.Indyuce.mmocore.comp.mythicmobs.skill.MythicMobSkill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
 
 /**
  * Note: any method which return longs returns milliseconds.
@@ -16,15 +18,6 @@ public class PlayerSkillData {
 	private final Map<String, Long> cooldowns = new HashMap<>();
 	private final PlayerData data;
 
-	/**
-	 * MythicMobs skill damage is handled via math formula which can retrieve
-	 * PAPI placeholders. When a skill is cast, all skill modifiers are cached
-	 * into that map: 1- for easier and faster access 2- it removes interference
-	 * for example when stats are calculating not when the spell is cast but
-	 * rather when the spell hits
-	 */
-	private final Map<String, CachedModifier> cache = new HashMap<>();
-
 	public PlayerSkillData(PlayerData data) {
 		this.data = data;
 	}
@@ -82,66 +75,4 @@ public class PlayerSkillData {
 		long reduction = (long) (relative ? value * (double) getCooldown(skill) : value * 1000.);
 		cooldowns.put(skill.getSkill().getId(), lastCast(skill.getSkill()) + reduction);
 	}
-
-	public double getCachedModifier(String name) {
-		return cache.containsKey(name) ? cache.get(name).getValue() : 0;
-	}
-
-	public void cacheModifiers(MythicMobSkill skill, SkillResult cast) {
-		cacheModifiers(skill.getInternalName(), cast);
-	}
-
-	/**
-	 * Caches all modifiers from a cast skill in the map
-	 * 
-	 * @param skill
-	 *            Skill identifier being used as reference in the map
-	 * @param cast
-	 *            Skill being cast
-	 */
-	public void cacheModifiers(String skill, SkillResult cast) {
-		for (String modifier : cast.getSkill().getModifiers())
-			cacheModifier(skill, modifier, cast.getModifier(modifier));
-
-		cacheModifier(skill, "level", cast.getLevel());
-	}
-
-	/**
-	 * Caches a specific modifier
-	 * 
-	 * @param skill
-	 *            The identifier of the skill being cast
-	 * @param name
-	 *            Modifier name
-	 * @param value
-	 *            Modifier value
-	 */
-	public void cacheModifier(String skill, String name, double value) {
-		cache.put(skill + "." + name, new CachedModifier(value));
-	}
-
-	/**
-	 * Empties cached modifiers. Modifiers should time out one minute after the
-	 * skill was cast
-	 */
-	public void refresh() {
-		cache.values().removeIf(CachedModifier::isTimedOut);
-	}
-
-	public static class CachedModifier {
-		private final long date = System.currentTimeMillis();
-		private final double value;
-
-		public CachedModifier(double value) {
-			this.value = value;
-		}
-
-		public boolean isTimedOut() {
-			return date + 1000 * 60 < System.currentTimeMillis();
-		}
-
-		public double getValue() {
-			return value;
-		}
-	}
 }

src/main/java/net/Indyuce/mmocore/skill/Power_Mark.java

@@ -1,139 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Color;
-import org.bukkit.Location;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.potion.PotionEffect;
-import org.bukkit.potion.PotionEffectType;
-import org.bukkit.scheduler.BukkitRunnable;
-import org.bukkit.util.Vector;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.MMOCoreUtils;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
-import io.lumine.mythic.lib.MythicLib;
-import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-import io.lumine.mythic.lib.version.VersionMaterial;
-import io.lumine.mythic.lib.version.VersionSound;
-
-public class Power_Mark extends Skill implements Listener {
-	public Power_Mark() {
-		super();
-		setMaterial(VersionMaterial.WITHER_SKELETON_SKULL.toMaterial());
-		setLore("Attacking an enemy applies a deadly", "magical mark which spreads accross the", "ground. This mark accumulates &6{ratio}%", "of the damage dealt to the initial", "target over &6{duration} &7seconds.", "", "After this duration, the mark bursts, dealing", "accumulated damage to nearby enemies and", "stunning them for &6{stun}+ &7seconds.", "", "The more damage, the longer the stun.", "", "&e{cooldown}s Cooldown");
-		setPassive();
-
-		addModifier("stun", new LinearValue(.4, .03));
-		addModifier("ratio", new LinearValue(10, 5));
-		addModifier("duration", new LinearValue(10, .1));
-		addModifier("cooldown", new LinearValue(30, 0));
-
-		Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-	}
-
-	@EventHandler
-	public void a(PlayerAttackEvent event) {
-		PlayerData data = PlayerData.get(event.getData().getUniqueId());
-		if (!event.getAttack().hasType(DamageType.WEAPON) || !data.getProfess().hasSkill(this))
-			return;
-
-		SkillResult cast = data.cast(this);
-		if (!cast.isSuccessful())
-			return;
-
-		new PowerMark(data, cast, event.getEntity().getLocation());
-	}
-
-	public class PowerMark extends BukkitRunnable implements Listener {
-		private final PlayerData data;
-		private final Location loc;
-
-		private final double duration;
-		private final double ratio;
-		private double stun;
-
-		private double accumulate;
-		private int j;
-
-		public PowerMark(PlayerData data, SkillResult cast, Location loc) {
-			this.data = data;
-			this.loc = loc;
-
-			loc.getWorld().playSound(loc, Sound.BLOCK_END_PORTAL_FRAME_FILL, 2, 1);
-
-			duration = cast.getModifier("duration");
-			ratio = cast.getModifier("ratio") / 100;
-			stun = cast.getModifier("stun");
-
-			runTaskTimer(MMOCore.plugin, 0, 1);
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-		}
-
-		private void unregister() {
-			PlayerAttackEvent.getHandlerList().unregister(this);
-			cancel();
-		}
-
-		@EventHandler(priority = EventPriority.HIGHEST)
-		public void stackDamage(PlayerAttackEvent event) {
-			if (!event.isCancelled() && j < 20 * (duration - 2) && radiusCheck(event.getEntity().getLocation()) && PlayerData.get(event.getData().getUniqueId()).equals(data)) {
-				accumulate += event.getAttack().getDamage() * ratio;
-				new ParabolicProjectile(event.getEntity().getLocation().add(0, event.getEntity().getHeight() / 2, 0), loc, () -> loc.getWorld().playSound(loc, Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 1, 1), Color.PURPLE);
-			}
-		}
-
-		private boolean radiusCheck(Location loc) {
-			return loc.getWorld().equals(this.loc.getWorld()) && loc.distanceSquared(this.loc) < 16;
-		}
-
-		@Override
-		public void run() {
-			if(!data.isOnline()) return;
-			if (j++ > duration * 20) {
-				unregister();
-
-				for (double a = 0; a < Math.PI * 2; a += Math.PI * 2 / 17)
-					new ParabolicProjectile(loc, loc.clone().add(6 * Math.cos(a), 0, 6 * Math.sin(a)), Particle.SPELL_WITCH);
-
-				loc.getWorld().playSound(loc, Sound.ENTITY_GENERIC_EXPLODE, 2, 0);
-				loc.getWorld().spawnParticle(Particle.EXPLOSION_LARGE, loc.clone().add(0, 1, 0), 16, 2, 2, 2, 0);
-				loc.getWorld().spawnParticle(Particle.EXPLOSION_NORMAL, loc.clone().add(0, 1, 0), 24, 0, 0, 0, .3f);
-
-				stun += Math.log(Math.max(1, accumulate - 10)) / 8;
-
-				for (Entity entity : MMOCoreUtils.getNearbyChunkEntities(loc))
-					if (entity.getLocation().distanceSquared(loc) < 25 && MMOCoreUtils.canTarget(data, entity)) {
-						((LivingEntity) entity).addPotionEffect(new PotionEffect(PotionEffectType.SLOW, (int) (stun * 20), 10, false, false));
-						MythicLib.plugin.getDamage().damage(data.getPlayer(), (LivingEntity) entity, new AttackResult(accumulate, DamageType.SKILL, DamageType.MAGIC));
-						entity.setVelocity(format(entity.getLocation().subtract(loc).toVector().setY(0)).setY(.3));
-					}
-				return;
-			}
-
-			if (j % 2 == 0 && j > 20 * (duration - 2))
-				loc.getWorld().playSound(loc, VersionSound.BLOCK_NOTE_BLOCK_PLING.toSound(), 1, (float) (1 + (j - 20 * (duration - 2)) / 40));
-
-			double a = (double) j / 16;
-			double r = Math.sqrt(Math.min(duration * 2 - (double) j / 10, 4)) * 2;
-			for (double k = 0; k < Math.PI * 2; k += Math.PI * 2 / 5)
-				loc.getWorld().spawnParticle(Particle.SPELL_WITCH, loc.clone().add(r * Math.cos(k + a), 0, r * Math.sin(k + a)), 0);
-		}
-	}
-
-	private Vector format(Vector vec) {
-		return vec.length() < .01 ? new Vector(0, 0, 0) : vec.normalize();
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Skill.java

@@ -1,9 +1,10 @@
-package net.Indyuce.mmocore.api.skill;
+package net.Indyuce.mmocore.skill;
 
 import net.Indyuce.mmocore.api.player.PlayerData;
 import net.Indyuce.mmocore.api.util.MMOCoreUtils;
 import net.Indyuce.mmocore.api.util.math.formula.IntegerLinearValue;
 import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
 import org.apache.commons.lang.Validate;
 import org.bukkit.Material;
 import org.bukkit.configuration.ConfigurationSection;
@@ -133,12 +134,7 @@ public abstract class Skill {
         return current instanceof IntegerLinearValue ? new IntegerLinearValue(config) : new LinearValue(config);
     }
 
-    /*
+    public abstract SkillMetadata whenCast(CasterMetadata casterMeta, SkillInfo skill);
-     * not overriden for passive skills therefore not abstract.
-     */
-    public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-        return new SkillResult(data, skill);
-    }
 
     public SkillInfo newSkillInfo(ConfigurationSection config) {
         return new SkillInfo(config);

src/main/java/net/Indyuce/mmocore/skill/Sneaky_Picky.java

@@ -1,50 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import io.lumine.mythic.lib.api.DamageType;
-import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
-
-public class Sneaky_Picky extends Skill implements Listener {
-	public Sneaky_Picky() {
-		super();
-		setMaterial(Material.DIAMOND_SWORD);
-		setLore("Your attack is empowered by &f{extra}% &7when", "delivering the first blow during a fight.", "", "&9Costs {mana} {mana_name}");
-		setPassive();
-
-		addModifier("cooldown", new LinearValue(0, 0));
-		addModifier("mana", new LinearValue(8, 1));
-		addModifier("extra", new LinearValue(50, 20));
-
-		Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-	}
-
-	@EventHandler
-	public void a(PlayerAttackEvent event) {
-		PlayerData data = PlayerData.get(event.getData().getUniqueId());
-		if (!event.getAttack().hasType(DamageType.WEAPON) || data.isInCombat() || !data.getProfess().hasSkill(this))
-			return;
-
-		SkillResult cast = data.cast(this);
-		if (!cast.isSuccessful())
-			return;
-
-		data.cast(cast.getInfo());
-
-		event.getAttack().multiplyDamage(1 + cast.getModifier("extra") / 100);
-		LivingEntity target = event.getEntity();
-		target.getWorld().spawnParticle(Particle.SMOKE_NORMAL, target.getLocation().add(0, target.getHeight() / 2, 0), 64, 0, 0, 0, .05);
-		target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ZOMBIE_ATTACK_IRON_DOOR, 1, 2);
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Telekinesy.java

@@ -1,99 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Location;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.entity.Entity;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.HandlerList;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerInteractEvent;
-import org.bukkit.scheduler.BukkitRunnable;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
-import io.lumine.mythic.lib.version.VersionMaterial;
-import io.lumine.mythic.lib.version.VersionSound;
-
-public class Telekinesy extends Skill {
-	public Telekinesy() {
-		super();
-		setMaterial(VersionMaterial.MAGENTA_DYE.toMaterial());
-		setLore("You take the control over your target", "for &9{duration} &7seconds. Left click to throw him.", "Knockback force: &f{knockback}%", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(20, -.3, 10, 20));
-		addModifier("mana", new LinearValue(20, 2));
-		addModifier("knockback", new LinearValue(50, 10));
-		addModifier("duration", new LinearValue(3, .1, 3, 6));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 7);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
-		new TelekinesyRunnable(data, cast.getTarget(), cast.getModifier("duration"), cast.getModifier("knockback") / 100);
-		return cast;
-	}
-
-	public static class TelekinesyRunnable extends BukkitRunnable implements Listener {
-		private final Entity entity;
-		private final PlayerData data;
-
-		private final long duration;
-		private final double d, f;
-
-		private int j;
-
-		public TelekinesyRunnable(PlayerData data, Entity entity, double duration, double force) {
-			this.entity = entity;
-			this.data = data;
-
-			d = data.getPlayer().getLocation().distance(entity.getLocation());
-			f = force;
-			this.duration = (long) (20 * duration);
-
-			runTaskTimer(MMOCore.plugin, 0, 1);
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-		}
-
-		@EventHandler
-		public void a(PlayerInteractEvent event) {
-			if(!data.isOnline()) return;
-			if (event.getPlayer().equals(data.getPlayer()) && event.getAction().name().contains("LEFT_CLICK")) {
-				entity.setVelocity(data.getPlayer().getEyeLocation().getDirection().multiply(1.5 * f));
-				entity.getWorld().playSound(entity.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 2, 1);
-				entity.getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(0, entity.getHeight() / 2, 0), 16);
-				close();
-			}
-		}
-
-		@Override
-		public void run() {
-			if (!data.isOnline() || entity.isDead() || j++ >= duration) {
-				close();
-				return;
-			}
-
-			if (j % 8 == 0)
-				new ParabolicProjectile(data.getPlayer().getEyeLocation(), entity.getLocation().add(0, entity.getHeight() / 2, 0), Particle.SPELL_WITCH);
-
-			Location loc = data.getPlayer().getEyeLocation().add(data.getPlayer().getEyeLocation().getDirection().multiply(d));
-			entity.setVelocity(loc.subtract(entity.getLocation().add(0, entity.getHeight() / 2, 0)).toVector().multiply(2));
-			entity.setFallDistance(0);
-		}
-
-		private void close() {
-			cancel();
-			HandlerList.unregisterAll(this);
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Warp.java

@@ -1,60 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Location;
-import org.bukkit.Material;
-import org.bukkit.Particle;
-import org.bukkit.Sound;
-import org.bukkit.block.Block;
-
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
-import io.lumine.mythic.lib.version.VersionSound;
-
-public class Warp extends Skill {
-	public Warp() {
-		super();
-		setMaterial(Material.ENDER_PEARL);
-		setLore("Teleports you to target location.", "Max. Range: &5{range}", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(15, -.3, 2, 15));
-		addModifier("mana", new LinearValue(8, 3));
-		addModifier("range", new LinearValue(16, 1, 0, 100));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		WarpCast cast = new WarpCast(data, skill);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 2);
-
-		Location loc = cast.block.getLocation().add(0, 1, 0);
-		loc.setYaw(data.getPlayer().getLocation().getYaw());
-		loc.setPitch(data.getPlayer().getLocation().getPitch());
-
-		new ParabolicProjectile(data.getPlayer().getLocation().add(0, 1, 0), loc.clone().add(0, 1, 0), () -> {
-			if (data.getPlayer().isOnline() && !data.getPlayer().isDead()) {
-				data.getPlayer().teleport(loc);
-				data.getPlayer().getWorld().spawnParticle(Particle.EXPLOSION_LARGE, data.getPlayer().getLocation().add(0, 1, 0), 0);
-				data.getPlayer().getWorld().spawnParticle(Particle.SPELL_INSTANT, data.getPlayer().getLocation().add(0, 1, 0), 32, 0, 0, 0, .1);
-				data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), VersionSound.ENTITY_ENDERMAN_TELEPORT.toSound(), 1, 1);
-			}
-		}, 2, Particle.SPELL_INSTANT);
-		return cast;
-	}
-
-	private class WarpCast extends SkillResult {
-		private Block block;
-
-		public WarpCast(PlayerData data, SkillInfo skill) {
-			super(data, skill);
-			if(!data.isOnline()) abort();
-			else if (isSuccessful() && (block = data.getPlayer().getTargetBlock(null, (int) getModifier("range"))) == null)
-				abort();
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/Weaken.java

@@ -1,77 +0,0 @@
-package net.Indyuce.mmocore.skill;
-
-import org.bukkit.Bukkit;
-import org.bukkit.Particle;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.LivingEntity;
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.Listener;
-import org.bukkit.event.entity.EntityDamageByEntityEvent;
-import org.bukkit.util.Vector;
-
-import net.Indyuce.mmocore.MMOCore;
-import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
-import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
-import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
-import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
-import io.lumine.mythic.lib.version.VersionMaterial;
-
-public class Weaken extends Skill {
-	public Weaken() {
-		super();
-		setMaterial(VersionMaterial.MAGENTA_DYE.toMaterial());
-		setLore("The target is weakened for", "&8{duration} &7seconds and is dealt", "&7extra &8{ratio}% &7damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
-
-		addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
-		addModifier("mana", new LinearValue(4, 1));
-		addModifier("ratio", new LinearValue(30, 3));
-		addModifier("duration", new LinearValue(10, -.1, 5, 10));
-	}
-
-	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 7);
-		if (!cast.isSuccessful() || !data.isOnline())
-			return cast;
-
-		LivingEntity target = cast.getTarget();
-		new ParabolicProjectile(data.getPlayer().getLocation().add(0, 1, 0), target.getLocation().add(0, target.getHeight() / 2, 0), randomVector(data.getPlayer()), () -> {
-			if (!target.isDead())
-				new Weakened(target, cast.getModifier("ratio"), cast.getModifier("duration"));
-		}, 2, Particle.SPELL_WITCH);
-		return cast;
-	}
-
-	private Vector randomVector(Player player) {
-		double a = Math.toRadians(player.getEyeLocation().getYaw() + 90);
-		a += (random.nextBoolean() ? 1 : -1) * (random.nextDouble() + .5) * Math.PI / 6;
-		return new Vector(Math.cos(a), .8, Math.sin(a)).normalize().multiply(.4);
-	}
-
-	public static class Weakened implements Listener {
-		private final Entity entity;
-		private final double c;
-
-		public Weakened(Entity entity, double ratio, double duration) {
-			this.entity = entity;
-			this.c = 1 + ratio / 100;
-
-			new SmallParticleEffect(entity, Particle.SPELL_WITCH);
-
-			Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
-			Bukkit.getScheduler().scheduleSyncDelayedTask(MMOCore.plugin, () -> EntityDamageByEntityEvent.getHandlerList().unregister(this), (int) duration * 20);
-		}
-
-		@EventHandler
-		public void a(EntityDamageByEntityEvent event) {
-			if (event.getEntity().equals(entity)) {
-				event.getEntity().getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(0, entity.getHeight() / 2, 0), 16, .5, .5, .5, 0);
-				event.setDamage(event.getDamage() * c);
-			}
-		}
-	}
-}

src/main/java/net/Indyuce/mmocore/skill/list/Ambers.java

@@ -0,0 +1,88 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.event.PlayerResourceUpdateEvent;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.player.stats.StatType;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
+import net.Indyuce.mmocore.skill.PassiveSkill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.*;
+import org.bukkit.event.EventHandler;
+import org.bukkit.scheduler.BukkitRunnable;
+
+public class Ambers extends PassiveSkill {
+    public Ambers() {
+        super();
+
+        setMaterial(Material.EMERALD);
+        setLore("Dealing magic damage has &630% &7chance", "of dropping an amber on the ground.", "", "When picked up, ambers stack and",
+                "refund &9{percent}% &7of your missing mana.", "", "&oAmbers can be used in other damaging skills.",
+                "&oThe more you collect, the more powerful the skills.", "", "&e{cooldown}s Cooldown");
+        setPassive();
+
+        addModifier("cooldown", new LinearValue(3, -.1, 1, 3));
+        addModifier("percent", new LinearValue(10, .1, 10, 20));
+
+        Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+    }
+
+    @EventHandler
+    public void a(PlayerAttackEvent event) {
+        PlayerData data = PlayerData.get(event.getData().getUniqueId());
+        if (!event.getAttack().getDamage().hasType(DamageType.SKILL) || !data.getProfess().hasSkill(this))
+            return;
+
+        SkillMetadata cast = data.cast(this);
+        if (!cast.isSuccessful())
+            return;
+
+        Location loc = event.getEntity().getLocation();
+        double a = random.nextDouble() * 2 * Math.PI;
+
+        new Amber(data, loc.add(0, event.getEntity().getHeight() / 2, 0), loc.clone().add(4 * Math.cos(a), 0, 4 * Math.sin(a)), cast.getModifier("percent"));
+    }
+
+    public static class Amber extends BukkitRunnable {
+        private final Location loc;
+        private final PlayerData data;
+        private final double percent;
+
+        private int j;
+
+        private Amber(PlayerData data, Location source, Location loc, double percent) {
+            this.loc = loc;
+            this.data = data;
+            this.percent = percent / 100;
+
+            final Amber amber = this;
+            new ParabolicProjectile(source, loc, Particle.REDSTONE, () -> amber.runTaskTimer(MMOCore.plugin, 0, 3), 1, Color.ORANGE, 1.3f);
+        }
+
+        @Override
+        public void run() {
+            if (!data.isOnline()) return;
+            if (j++ > 66 || !data.getPlayer().getWorld().equals(loc.getWorld())) {
+                cancel();
+                return;
+            }
+
+            if (data.getPlayer().getLocation().distanceSquared(loc) < 2) {
+
+                data.getPlayer().playSound(data.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
+                // data.getSkillData().ambers++;
+                data.giveMana((data.getStats().getStat(StatType.MAX_MANA) - data.getMana()) * percent, PlayerResourceUpdateEvent.UpdateReason.SKILL_REGENERATION);
+
+                cancel();
+                return;
+            }
+
+            for (int j = 0; j < 5; j++)
+                loc.getWorld().spawnParticle(Particle.SPELL_MOB, loc, 0, 1, 0.647, 0, 1);
+            loc.getWorld().spawnParticle(Particle.REDSTONE, loc, 1, new Particle.DustOptions(Color.ORANGE, 1.3f));
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Backstab.java

@@ -0,0 +1,50 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.PassiveSkill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.EventHandler;
+
+public class Backstab extends PassiveSkill {
+    public Backstab() {
+        super();
+
+        setMaterial(Material.FLINT);
+        setLore("Backstabs deal &c{extra}%&7 damage.", "", "&9Costs {mana} {mana_name}");
+        setPassive();
+
+        addModifier("cooldown", new LinearValue(0, 0));
+        addModifier("mana", new LinearValue(8, 1));
+        addModifier("extra", new LinearValue(50, 20));
+
+        Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+    }
+
+    @EventHandler
+    public void a(PlayerAttackEvent event) {
+        PlayerData data = PlayerData.get(event.getData().getUniqueId());
+        LivingEntity target = event.getEntity();
+        if (data.isInCombat() || !event.getAttack().getDamage().hasType(DamageType.WEAPON)
+                || event.getPlayer().getEyeLocation().getDirection().angle(target.getEyeLocation().getDirection()) > Math.PI / 6
+                || !data.getProfess().hasSkill(this))
+            return;
+
+        SkillMetadata cast = data.cast(this);
+        if (!cast.isSuccessful())
+            return;
+
+        data.cast(cast.getInfo());
+        event.getAttack().getDamage().multiply(1 + cast.getModifier("extra") / 100, DamageType.PHYSICAL);
+        target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .05);
+        target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ENDERMAN_HURT, 1, 1.5f);
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Combo_Attack.java

@@ -0,0 +1,56 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.scheduler.BukkitRunnable;
+
+public class Combo_Attack extends Skill {
+    public Combo_Attack() {
+        super();
+
+        setMaterial(Material.IRON_SWORD);
+        setLore("Violenty slashes your target &8{count}", "times for a total of &8{damage} &7damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
+        addModifier("damage", new LinearValue(9, .3));
+        addModifier("count", new LinearValue(3, .2));
+        addModifier("mana", new LinearValue(10, -.1, 3, 5));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 3);
+        if (!cast.isSuccessful())
+            return cast;
+
+        new BukkitRunnable() {
+            final int count = (int) cast.getModifier("count");
+            final double damage = cast.getModifier("damage") / count;
+            final LivingEntity target = cast.getTarget();
+
+            int c;
+
+            @Override
+            public void run() {
+                if (c++ > count || caster.getPlayerData().isOnline()) {
+                    cancel();
+                    return;
+                }
+
+                target.getWorld().playSound(target.getLocation(), Sound.ENTITY_PLAYER_ATTACK_KNOCKBACK, 1, 2);
+                target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 24, 0, 0, 0, .7);
+                caster.attack(target, damage, DamageType.SKILL, DamageType.PHYSICAL);
+            }
+        }.runTaskTimer(MMOCore.plugin, 0, 5);
+        return cast;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Control.java

@@ -0,0 +1,103 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.version.VersionMaterial;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
+
+public class Control extends Skill {
+    public Control() {
+        super();
+        setMaterial(VersionMaterial.MAGENTA_DYE.toMaterial());
+        setLore("Your target is temporarily slowed for &8{duration} &7seconds.", "As soon as you left click, it gets", "pushed back where you are looking at.", "Knockback force: &f{knockback}%", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(18, -.3, 10, 20));
+        addModifier("mana", new LinearValue(15, 1.5));
+        addModifier("knockback", new LinearValue(30, 3));
+        addModifier("duration", new LinearValue(2, 0));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 7);
+        if (!cast.isSuccessful())
+            return cast;
+
+        caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
+        cast.getTarget().addPotionEffect(new PotionEffect(PotionEffectType.SLOW, 20 * 2, 0));
+        new TelekinesyRunnable(caster, cast.getTarget(), cast.getModifier("knockback") / 100, cast.getModifier("duration"));
+        return cast;
+    }
+
+    public static class TelekinesyRunnable extends BukkitRunnable implements Listener {
+        private final LivingEntity entity;
+        private final CasterMetadata caster;
+
+        private final double f, d;
+
+        private int j;
+
+        public TelekinesyRunnable(CasterMetadata caster, LivingEntity entity, double force, double duration) {
+            this.entity = entity;
+            this.caster = caster;
+
+            d = duration * 20;
+            f = force;
+
+            runTaskTimer(MMOCore.plugin, 0, 1);
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+        }
+
+        @EventHandler
+        public void a(PlayerInteractEvent event) {
+            if (event.getPlayer().equals(caster.getPlayer()) && event.getAction().name().contains("LEFT_CLICK")) {
+                Vector vec = caster.getPlayer().getEyeLocation().getDirection().multiply(3 * f);
+                vec.setY(Math.max(.5, vec.getY() / 2));
+                entity.setVelocity(vec);
+
+                /*
+                 * try not to interfere with other potion effects
+                 */
+                PotionEffect effect = entity.getPotionEffect(PotionEffectType.SLOW);
+                if (effect.getDuration() < d && effect.getAmplifier() == 0)
+                    entity.removePotionEffect(PotionEffectType.SLOW);
+
+                entity.getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(0, entity.getHeight() / 2, 0), 16);
+                entity.getWorld().playSound(entity.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 2, 1);
+                close();
+            }
+        }
+
+        @Override
+        public void run() {
+            if (!caster.getPlayerData().isOnline() || entity.isDead() || j++ >= d) {
+                close();
+                return;
+            }
+
+            double a = (double) j / 3;
+            entity.getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(Math.cos(a), entity.getHeight() / 2, Math.sin(a)), 0);
+        }
+
+        private void close() {
+            cancel();
+            HandlerList.unregisterAll(this);
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Deep_Wound.java

@@ -0,0 +1,47 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.entity.LivingEntity;
+
+public class Deep_Wound extends Skill {
+    public Deep_Wound() {
+        super();
+        setMaterial(Material.REDSTONE);
+        setLore("You puncture your target, dealing &c{damage} &7damage.", "Damage is increased up to &c+{extra}% &7based",
+                "on your target's missing health.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
+        addModifier("mana", new LinearValue(8, 3));
+        addModifier("damage", new LinearValue(5, 1.5));
+        addModifier("extra", new LinearValue(50, 20));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 3);
+        if (!cast.isSuccessful())
+            return cast;
+
+        LivingEntity target = cast.getTarget();
+        target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ZOMBIE_ATTACK_IRON_DOOR, 2, 2);
+        target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .7);
+        target.getWorld().spawnParticle(Particle.BLOCK_CRACK, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, 2,
+                Material.REDSTONE_BLOCK.createBlockData());
+
+        double max = target.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
+        double ratio = (max - target.getHealth()) / max;
+
+        double damage = cast.getModifier("damage") * (1 + cast.getModifier("extra") * ratio / 100);
+        caster.attack(target, damage, DamageType.SKILL, DamageType.PHYSICAL);
+        return cast;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Empowered_Attack.java

@@ -0,0 +1,119 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import io.lumine.mythic.lib.damage.DamageType;
+import io.lumine.mythic.lib.version.VersionMaterial;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.util.Vector;
+
+public class Empowered_Attack extends Skill {
+    private static final double perb = 5;
+
+    public Empowered_Attack() {
+        super();
+        setMaterial(VersionMaterial.BONE_MEAL.toMaterial());
+        setLore("You charge your weapon with lightning.", "Your next attack deals &f{extra}% &7extra damage", "and spreads to enemies within &f{radius} &7blocks", "for &f{ratio}% &7of the initial damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(10, -.2, 5, 10));
+        addModifier("mana", new LinearValue(4, 1));
+        addModifier("radius", new LinearValue(4, 0));
+        addModifier("ratio", new LinearValue(30, 10, 30, 100));
+        addModifier("extra", new LinearValue(30, 8));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        SkillMetadata cast = new SkillMetadata(caster, skill);
+        if (!cast.isSuccessful())
+            return cast;
+
+        caster.getPlayer().playSound(caster.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
+        new EmpoweredAttack(caster, cast.getModifier("extra"), cast.getModifier("ratio"), cast.getModifier("radius"));
+        return cast;
+    }
+
+    private void drawVector(Location loc, Vector vec) {
+
+        double steps = vec.length() * perb;
+        Vector v = vec.clone().normalize().multiply((double) 1 / perb);
+
+        for (int j = 0; j < Math.min(steps, 124); j++)
+            loc.getWorld().spawnParticle(Particle.FIREWORKS_SPARK, loc.add(v), 0);
+    }
+
+    public class EmpoweredAttack implements Listener {
+        private final CasterMetadata caster;
+        private final double c, r, rad;
+
+        public EmpoweredAttack(CasterMetadata caster, double extra, double ratio, double radius) {
+            this.caster = caster;
+            this.c = 1 + extra / 100;
+            this.r = ratio / 100;
+            this.rad = radius;
+
+            if (caster.getPlayerData().isOnline())
+                new SmallParticleEffect(caster.getPlayer(), Particle.FIREWORKS_SPARK);
+
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+            Bukkit.getScheduler().scheduleSyncDelayedTask(MMOCore.plugin, this::close, 80);
+        }
+
+        private void close() {
+            PlayerAttackEvent.getHandlerList().unregister(this);
+        }
+
+        @EventHandler
+        public void a(PlayerAttackEvent event) {
+            if (!caster.getPlayerData().isOnline()) return;
+            if (event.getPlayer().equals(caster.getPlayer()) && event.getAttack().getDamage().hasType(DamageType.WEAPON)) {
+                close();
+
+                Entity target = event.getEntity();
+
+                /*
+                 * play lightning effect
+                 */
+                final Location loc = target.getLocation().add(0, target.getHeight() / 2, 0);
+                for (int j = 0; j < 3; j++) {
+                    Location clone = loc.clone();
+                    double a = random.nextDouble() * Math.PI * 2;
+                    loc.add(Math.cos(a), 5, Math.sin(a));
+                    drawVector(clone, loc.clone().subtract(clone).toVector());
+                }
+
+                target.getWorld().playSound(target.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 2, .5f);
+                target.getWorld().spawnParticle(Particle.FIREWORKS_SPARK, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .2);
+
+                double sweep = event.getAttack().getDamage().getDamage() * r;
+                Location src = target.getLocation().add(0, target.getHeight() / 2, 0);
+
+                for (Entity entity : target.getNearbyEntities(rad, rad, rad))
+                    if (MMOCoreUtils.canTarget(caster.getPlayerData(), entity)) {
+                        drawVector(src, entity.getLocation().add(0, entity.getHeight() / 2, 0).subtract(src).toVector());
+                        caster.attack((LivingEntity) entity, sweep, DamageType.PHYSICAL, DamageType.SKILL);
+                    }
+
+                /*
+                 * Apply damage afterwards otherwise the damage dealt to nearby
+                 * entities scale with the extra ability damage.
+                 */
+                event.getAttack().getDamage().multiply(1 + c, DamageType.WEAPON);
+            }
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Evade.java

@@ -0,0 +1,83 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import io.lumine.mythic.lib.damage.DamageType;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+
+public class Evade extends Skill {
+    public Evade() {
+        super();
+        setMaterial(Material.LEATHER_BOOTS);
+        setLore("You become imune to damage for &8{duration} &7seconds.", "Cancels when dealing weapon damage.", "", "&e{cooldown}s Cooldown",
+                "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(20, 0));
+        addModifier("mana", new LinearValue(8, 3));
+        addModifier("duration", new LinearValue(2, .3, 2, 10));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        SkillMetadata cast = new SkillMetadata(caster, skill);
+        if (!cast.isSuccessful())
+            return cast;
+
+            caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), VersionSound.ENTITY_ENDERMAN_TELEPORT.toSound(), 1, 2);
+            new SmallParticleEffect(caster.getPlayer(), Particle.CLOUD);
+        new EvadeSkill(caster.getPlayerData(), cast.getModifier("duration"));
+        return cast;
+    }
+
+    private static class EvadeSkill extends BukkitRunnable implements Listener {
+        private final PlayerData data;
+
+        public EvadeSkill(PlayerData data, double duration) {
+            this.data = data;
+
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+            runTaskTimer(MMOCore.plugin, 0, 1);
+            Bukkit.getScheduler().runTaskLater(MMOCore.plugin, this::close, (long) (duration * 20));
+        }
+
+        private void close() {
+            cancel();
+            EntityDamageEvent.getHandlerList().unregister(this);
+        }
+
+        @EventHandler(priority = EventPriority.LOW)
+        public void a(EntityDamageEvent event) {
+            if (!data.isOnline()) return;
+            if (event.getEntity().equals(data.getPlayer()))
+                event.setCancelled(true);
+        }
+
+        @EventHandler(priority = EventPriority.HIGHEST)
+        public void b(PlayerAttackEvent event) {
+            if (event.getAttack().getDamage().hasType(DamageType.WEAPON) && !event.isCancelled() && PlayerData.get(event.getData().getUniqueId()).equals(data))
+                close();
+        }
+
+        @Override
+        public void run() {
+            if (!data.isOnline() || data.getPlayer().isDead())
+                close();
+            else
+                data.getPlayer().getWorld().spawnParticle(Particle.CLOUD, data.getPlayer().getLocation().add(0, 1, 0), 0);
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Fire_Berserker.java

@@ -0,0 +1,37 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.PassiveSkill;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+
+import java.util.Optional;
+
+public class Fire_Berserker extends PassiveSkill {
+    public Fire_Berserker() {
+        super();
+        setMaterial(Material.FLINT_AND_STEEL);
+        setLore("You deal &c{extra}% &7more damage when on fire.");
+        setPassive();
+
+        addModifier("extra", new LinearValue(10, 5));
+        // addModifier("duration", new LinearValue(10, .1));
+        // addModifier("cooldown", new LinearValue(30, 0));
+
+        Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+    }
+
+    @EventHandler(priority = EventPriority.HIGH, ignoreCancelled = true)
+    public void a(PlayerAttackEvent event) {
+        PlayerData data = PlayerData.get(event.getData().getUniqueId());
+        if (event.getPlayer().getFireTicks() > 0) {
+            Optional<SkillInfo> skill = data.getProfess().findSkill(this);
+            skill.ifPresent(skillInfo -> event.getAttack().getDamage().multiply(1 + skillInfo.getModifier("extra", data.getSkillLevel(this)) / 100));
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Fire_Rage.java

@@ -0,0 +1,158 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.MythicLib;
+import io.lumine.mythic.lib.api.player.EquipmentSlot;
+import io.lumine.mythic.lib.api.stat.StatMap;
+import io.lumine.mythic.lib.damage.DamageType;
+import io.lumine.mythic.lib.version.VersionMaterial;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.api.util.math.VectorRotation;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
+
+public class Fire_Rage extends Skill {
+    public Fire_Rage() {
+        super();
+        setMaterial(VersionMaterial.FIRE_CHARGE.toMaterial());
+        setLore("For {duration} seconds, you slow down and are able", "to cast up to {count} fireballs by left clicking.", "", "Fireballs deal &c{damage} &7damage upon contact", "and ignite your target for &c{ignite} &7seconds.", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("duration", new LinearValue(8, 0));
+        addModifier("count", new LinearValue(4, 0));
+        addModifier("mana", new LinearValue(15, 1));
+        addModifier("damage", new LinearValue(5, 3));
+        addModifier("ignite", new LinearValue(2, .1));
+        addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        SkillMetadata cast = new SkillMetadata(caster, skill);
+        if (!cast.isSuccessful())
+            return cast;
+
+        new Rage(caster, cast);
+        return cast;
+    }
+
+    public class Rage extends BukkitRunnable implements Listener {
+        private final CasterMetadata caster;
+        private final StatMap.CachedStatMap cachedStats;
+        private final int count, ignite;
+        private final double damage;
+
+        private int c;
+        private double b;
+        private long last = System.currentTimeMillis();
+
+        /*
+         * time the player needs to wait before firing two fireballs.
+         */
+        private static final long timeOut = 700;
+
+        public Rage(CasterMetadata caster, SkillMetadata cast) {
+            this.caster = caster;
+            this.cachedStats = caster.getPlayerData().getMMOPlayerData().getStatMap().cache(EquipmentSlot.MAIN_HAND);
+            this.ignite = (int) (20 * cast.getModifier("ignite"));
+            this.damage = cast.getModifier("damage");
+            c = count = (int) cast.getModifier("count");
+
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+            Bukkit.getScheduler().runTaskLater(MMOCore.plugin, this::close, (long) (cast.getModifier("duration") * 20));
+            runTaskTimer(MMOCore.plugin, 0, 1);
+        }
+
+        @EventHandler
+        public void a(PlayerInteractEvent event) {
+            if (event.getPlayer().equals(caster.getPlayer()) && event.getAction().name().contains("LEFT_CLICK") && (System.currentTimeMillis() - last) > timeOut) {
+                last = System.currentTimeMillis();
+                castEffect();
+                fireball(c < 2);
+                if (c-- < 2)
+                    close();
+            }
+        }
+
+        private void castEffect() {
+            VectorRotation rotation = new VectorRotation(caster.getPlayer().getEyeLocation());
+            for (double a = 0; a < Math.PI * 2; a += Math.PI / 13) {
+                Vector vec = rotation.rotate(new Vector(Math.cos(a), Math.sin(a), 0)).add(caster.getPlayer().getEyeLocation().getDirection().multiply(.5)).multiply(.3);
+                caster.getPlayer().getWorld().spawnParticle(Particle.FLAME, caster.getPlayer().getLocation().add(0, 1.3, 0).add(caster.getPlayer().getEyeLocation().getDirection().multiply(.5)), 0, vec.getX(), vec.getY(), vec.getZ(), .3);
+            }
+        }
+
+        private void close() {
+            if (isCancelled())
+                return;
+
+            cancel();
+            HandlerList.unregisterAll(this);
+        }
+
+        private void fireball(boolean last) {
+            if (last) {
+                caster.getPlayer().removePotionEffect(PotionEffectType.SLOW);
+                caster.getPlayer().removePotionEffect(PotionEffectType.SLOW);
+            }
+
+            caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 1, last ? 0 : 1);
+            new BukkitRunnable() {
+                int j = 0;
+                final Vector vec = caster.getPlayer().getEyeLocation().getDirection();
+                final Location loc = caster.getPlayer().getLocation().add(0, 1.3, 0);
+
+                public void run() {
+                    if (j++ > 40)
+                        cancel();
+
+                    loc.add(vec);
+
+                    if (j % 2 == 0)
+                        loc.getWorld().playSound(loc, Sound.BLOCK_FIRE_AMBIENT, 2, 1);
+                    loc.getWorld().spawnParticle(Particle.FLAME, loc, 4, .1, .1, .1, 0);
+                    loc.getWorld().spawnParticle(Particle.LAVA, loc, 0);
+
+                    for (Entity target : MMOCoreUtils.getNearbyChunkEntities(loc))
+                        if (MythicLib.plugin.getVersion().getWrapper().isInBoundingBox(target, loc) && MMOCoreUtils.canTarget(caster.getPlayerData(), target)) {
+                            loc.getWorld().spawnParticle(Particle.LAVA, loc, 8);
+                            loc.getWorld().spawnParticle(Particle.FLAME, loc, 32, 0, 0, 0, .1);
+                            loc.getWorld().playSound(loc, Sound.ENTITY_BLAZE_HURT, 2, 1);
+                            target.setFireTicks(target.getFireTicks() + ignite);
+                            caster.attack((LivingEntity) target, damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC);
+                            cancel();
+                        }
+                }
+            }.runTaskTimer(MMOCore.plugin, 0, 1);
+        }
+
+        @Override
+        public void run() {
+            if (caster.getPlayer().isDead() || !caster.getPlayer().isOnline()) {
+                close();
+                return;
+            }
+
+            b += Math.PI / 30;
+            for (int j = 0; j < c; j++) {
+                double a = Math.PI * 2 * j / count + b;
+                caster.getPlayer().spawnParticle(Particle.FLAME, caster.getPlayer().getLocation().add(Math.cos(a) * 1.5, 1 + Math.sin(a * 1.5) * .7, Math.sin(a) * 1.5), 0);
+            }
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Fire_Storm.java

@@ -1,5 +1,6 @@
-package net.Indyuce.mmocore.skill;
+package net.Indyuce.mmocore.skill.list;
 
+import net.Indyuce.mmocore.skill.CasterMetadata;
 import org.bukkit.Material;
 import org.bukkit.Particle;
 import org.bukkit.Sound;
@@ -10,14 +11,14 @@ import org.bukkit.util.Vector;
 
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill;
-import net.Indyuce.mmocore.api.skill.SkillResult;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
-import net.Indyuce.mmocore.api.skill.result.TargetSkillResult;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
 import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
 import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
 import io.lumine.mythic.lib.MythicLib;
 import io.lumine.mythic.lib.api.AttackResult;
-import io.lumine.mythic.lib.api.DamageType;
+import io.lumine.mythic.lib.damage.DamageType;;
 import io.lumine.mythic.lib.version.VersionSound;
 
 public class Fire_Storm extends Skill {
@@ -33,34 +34,34 @@ public class Fire_Storm extends Skill {
 	}
 
 	@Override
-	public SkillResult whenCast(PlayerData data, SkillInfo skill) {
+	public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
-		TargetSkillResult cast = new TargetSkillResult(data, skill, 20);
+		TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 20);
-		if (!cast.isSuccessful() || !data.isOnline())
+		if (!cast.isSuccessful() )
 			return cast;
 
 		LivingEntity target = cast.getTarget();
 
-		double damage = cast.getModifier("damage");
+		final double damage = cast.getModifier("damage");
-		int ignite = (int) (20 * cast.getModifier("ignite"));
+		final int ignite = (int) (20 * cast.getModifier("ignite"));
 
-		data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 1, 1);
+		caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 1, 1);
 		new BukkitRunnable() {
 			int j = 0;
 
 			@Override
 			public void run() {
-				if (j++ > 5 || data.getPlayer().isDead() || !data.getPlayer().isOnline() || target.isDead() || !data.getPlayer().getWorld().equals(target.getWorld())) {
+				if (j++ > 5 || caster.getPlayer().isDead() || !caster.getPlayer().isOnline() || target.isDead() || !caster.getPlayer().getWorld().equals(target.getWorld())) {
 					cancel();
 					return;
 				}
 
 				// TODO dynamic target location
 
-				data.getPlayer().getWorld().playSound(data.getPlayer().getLocation(), Sound.BLOCK_FIRE_AMBIENT, 1, 1);
+				caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), Sound.BLOCK_FIRE_AMBIENT, 1, 1);
-				new ParabolicProjectile(data.getPlayer().getLocation().add(0, 1, 0), target.getLocation().add(0, target.getHeight() / 2, 0), randomVector(data.getPlayer()), () -> {
+				new ParabolicProjectile(caster.getPlayer().getLocation().add(0, 1, 0), target.getLocation().add(0, target.getHeight() / 2, 0), randomVector(caster.getPlayer()), () -> {
 					target.getWorld().playSound(target.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_TWINKLE.toSound(), 1, 2);
 					target.getWorld().spawnParticle(Particle.SMOKE_NORMAL, target.getLocation().add(0, target.getHeight() / 2, 0), 8, 0, 0, 0, .15);
-					MythicLib.plugin.getDamage().damage(data.getPlayer(), target, new AttackResult(damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC));
+					caster.attack(target, damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC);
 					target.setFireTicks(ignite);
 
 				}, 2, Particle.FLAME);

src/main/java/net/Indyuce/mmocore/skill/list/Fireball.java

@@ -0,0 +1,104 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.MythicLib;
+import io.lumine.mythic.lib.api.MMORayTraceResult;
+import io.lumine.mythic.lib.damage.DamageType;
+import io.lumine.mythic.lib.version.VersionMaterial;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
+
+public class Fireball extends Skill {
+    public Fireball() {
+        super();
+        setMaterial(VersionMaterial.FIRE_CHARGE.toMaterial());
+        setLore("Casts a deadly fireball onto your", "target, dealing &c{damage} &7damage upon contact", "and igniting it for &c{ignite} &7seconds.", "", "Shatters into 3 blazing hot shards which stick", "to walls and explode 3 seconds later, dealing", "&c{ratio}% &7of the initial spell damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("mana", new LinearValue(15, 1));
+        addModifier("damage", new LinearValue(5, 3));
+        addModifier("ignite", new LinearValue(2, .1));
+        addModifier("ratio", new LinearValue(50, 3));
+        addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        SkillMetadata cast = new SkillMetadata(caster, skill);
+        if (!cast.isSuccessful())
+            return cast;
+
+        caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 1, 1);
+        new BukkitRunnable() {
+            int j = 0;
+            final Vector vec = caster.getPlayer().getEyeLocation().getDirection();
+            final Location loc = caster.getPlayer().getLocation().add(0, 1.3, 0);
+
+            public void run() {
+                if (j++ > 40) {
+                    cancel();
+                    return;
+                }
+
+                loc.add(vec);
+
+                if (j % 3 == 0)
+                    loc.getWorld().playSound(loc, Sound.BLOCK_FIRE_AMBIENT, 2, 1);
+                loc.getWorld().spawnParticle(Particle.FLAME, loc, 4, .02, .02, .02, 0);
+                loc.getWorld().spawnParticle(Particle.LAVA, loc, 0);
+
+                for (Entity target : MMOCoreUtils.getNearbyChunkEntities(loc))
+                    if (MythicLib.plugin.getVersion().getWrapper().isInBoundingBox(target, loc) && MMOCoreUtils.canTarget(caster.getPlayerData(), target)) {
+                        loc.getWorld().spawnParticle(Particle.LAVA, loc, 8);
+                        loc.getWorld().spawnParticle(Particle.FLAME, loc, 32, 0, 0, 0, .1);
+                        loc.getWorld().playSound(loc, Sound.ENTITY_BLAZE_HURT, 2, 1);
+                        target.setFireTicks((int) (target.getFireTicks() + cast.getModifier("ignite") * 20));
+                        double damage = cast.getModifier("damage");
+                        caster.attack((LivingEntity) target, damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC);
+
+                        new BukkitRunnable() {
+                            int i = 0;
+
+                            @Override
+                            public void run() {
+                                if (i++ > 2) {
+                                    cancel();
+                                    return;
+                                }
+
+                                double range = 2.5 * (1 + random.nextDouble());
+                                Vector dir = randomDirection();
+                                loc.getWorld().playSound(loc, Sound.ENTITY_BLAZE_HURT, 2, 1.5f);
+
+                                MMORayTraceResult result = MythicLib.plugin.getVersion().getWrapper().rayTrace(loc, dir, range, entity -> MMOCoreUtils.canTarget(caster.getPlayerData(), entity));
+                                if (result.hasHit())
+                                    caster.attack(result.getHit(), damage, DamageType.SKILL, DamageType.PROJECTILE, DamageType.MAGIC);
+                                result.draw(loc.clone(), dir, 8, tick -> tick.getWorld().spawnParticle(Particle.FLAME, tick, 0));
+
+                            }
+                        }.runTaskTimer(MMOCore.plugin, 3, 3);
+
+                        cancel();
+                        return;
+                    }
+            }
+        }.runTaskTimer(MMOCore.plugin, 0, 1);
+        return cast;
+    }
+
+    private Vector randomDirection() {
+        double x = random.nextDouble() - .5, y = (random.nextDouble() - .2) / 2, z = random.nextDouble() - .5;
+        Vector dir = new Vector(x, y, z);
+        return dir.lengthSquared() == 0 ? new Vector(1, 0, 0) : dir.normalize();
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Furtive_Strike.java

@@ -0,0 +1,50 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.LivingEntity;
+
+public class Furtive_Strike extends Skill {
+    public Furtive_Strike() {
+        super();
+        setMaterial(Material.COAL);
+        setLore("Deals &c{damage} &7damage, increased by &c{extra}% &7if", "there are not any enemies within &c{radius} &7blocks.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
+        addModifier("mana", new LinearValue(8, 3));
+        addModifier("damage", new LinearValue(5, 1.5));
+        addModifier("extra", new LinearValue(50, 20));
+        addModifier("radius", new LinearValue(7, 0));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 3);
+        if (!cast.isSuccessful())
+            return cast;
+
+        LivingEntity target = cast.getTarget();
+        target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ZOMBIE_ATTACK_IRON_DOOR, 2, 1.5f);
+        target.getWorld().spawnParticle(Particle.CRIT, target.getLocation().add(0, target.getHeight() / 2, 0), 32, 0, 0, 0, .5);
+        target.getWorld().spawnParticle(Particle.SMOKE_NORMAL, target.getLocation().add(0, target.getHeight() / 2, 0), 64, 0, 0, 0, .08);
+
+        double damage = cast.getModifier("damage");
+
+        double radius = cast.getModifier("radius");
+        if (target.getNearbyEntities(radius, radius, radius).stream().allMatch(entity -> entity.equals(caster.getPlayer()))) {
+            new SmallParticleEffect(target, Particle.SPELL_WITCH);
+            damage *= 1 + cast.getModifier("extra") / 100;
+        }
+
+        caster.attack(target, damage, DamageType.SKILL, DamageType.PHYSICAL);
+        return cast;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Greater_Healings.java

@@ -0,0 +1,41 @@
+package net.Indyuce.mmocore.skill.list;
+
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.entity.LivingEntity;
+
+public class Greater_Healings extends Skill {
+    public Greater_Healings() {
+        super();
+        setMaterial(Material.GOLDEN_APPLE);
+        setLore("Instantly grants &a{heal} &7HP to the", "target. Sneak to cast it on yourself.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("mana", new LinearValue(4, 2));
+        addModifier("heal", new LinearValue(10, 4));
+        addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        SkillMetadata cast = caster.getPlayer().isSneaking() ? new SkillMetadata(caster, skill) : new TargetSkillMetadata(caster, skill, 50, true);
+        if (!cast.isSuccessful())
+            return cast;
+
+        LivingEntity target = cast instanceof TargetSkillMetadata ? ((TargetSkillMetadata) cast).getTarget() : caster.getPlayer();
+
+        double max = target.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
+        target.setHealth(Math.min(max, target.getHealth() + cast.getModifier("heal")));
+
+        new SmallParticleEffect(target, Particle.HEART, 1);
+        target.getWorld().playSound(target.getLocation(), Sound.ENTITY_PLAYER_LEVELUP, 2, 2);
+        return cast;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Human_Shield.java

@@ -0,0 +1,105 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.version.VersionMaterial;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+
+public class Human_Shield extends Skill {
+    public Human_Shield() {
+        super();
+        setMaterial(VersionMaterial.TOTEM_OF_UNDYING.toMaterial());
+        setLore("Casts a protection charm onto target ally,", "reducing damage taken by &a{reduction}%&7.", "&a{redirect}% &7of this damage is redirected to you.", "Charm is cancelled when reaching &c{low}%&7 health.", "Lasts &a{duration} &7seconds.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(18, -.3, 14, 18));
+        addModifier("mana", new LinearValue(15, 1.5));
+        addModifier("reduction", new LinearValue(30, 3, 30, 70));
+        addModifier("redirect", new LinearValue(30, -2, 20, 30));
+        addModifier("duration", new LinearValue(7, 0));
+        addModifier("low", new LinearValue(10, 0));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 7, true);
+        if (!cast.isSuccessful())
+            return cast;
+
+        if (!(cast.getTarget() instanceof Player)) {
+            cast.abort();
+            return cast;
+        }
+
+        caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), Sound.ENTITY_BLAZE_AMBIENT, 1, 1);
+        new HumanShield(caster.getPlayerData(), (Player) cast.getTarget(), cast.getModifier("reduction"), cast.getModifier("redirect"), cast.getModifier("duration"), cast.getModifier("low"));
+        return cast;
+    }
+
+    public static class HumanShield extends BukkitRunnable implements Listener {
+        private final PlayerData data;
+        private final Player target;
+        private final double r, rd, d, l;
+
+        private int j;
+
+        public HumanShield(PlayerData data, Player target, double reduction, double redirect, double duration, double low) {
+            this.target = target;
+            this.data = data;
+
+            r = 1 - Math.min(1, reduction / 100);
+            rd = redirect / 100;
+            d = duration * 20;
+            l = low / 100;
+
+            runTaskTimer(MMOCore.plugin, 0, 1);
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+        }
+
+        @EventHandler
+        public void a(EntityDamageEvent event) {
+            if (event.getEntity().equals(target)) {
+
+                double damage = event.getDamage() * r;
+                event.setDamage(damage);
+
+                double health = data.getPlayer().getHealth() - damage * rd;
+                if (health > data.getPlayer().getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue() * l)
+                    data.getPlayer().setHealth(health);
+                else {
+                    data.getPlayer().setHealth(1);
+                    close();
+                }
+            }
+        }
+
+        @Override
+        public void run() {
+            if (!data.isOnline() || data.getPlayer().isDead() || !target.isOnline() || target.isDead() || j++ >= d) {
+                close();
+                return;
+            }
+
+            double a = (double) j / 5;
+            target.getWorld().spawnParticle(Particle.VILLAGER_HAPPY, target.getLocation().add(Math.cos(a), 1 + Math.sin(a / 3) / 1.3, Math.sin(a)), 0);
+        }
+
+        private void close() {
+            cancel();
+            HandlerList.unregisterAll(this);
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Ice_Spikes.java

@@ -0,0 +1,79 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.damage.DamageType;
+import io.lumine.mythic.lib.version.VersionMaterial;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.api.util.math.Line3D;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.LocationSkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
+
+;
+
+public class Ice_Spikes extends Skill {
+    private static final double radius = 3;
+
+    public Ice_Spikes() {
+        super();
+        setMaterial(VersionMaterial.SNOWBALL.toMaterial());
+        setLore("Ice spikes summon from the ground", "and shatter, each dealing &9{damage} &7damage", "to hit enemies and slowing them down", "for &9{slow} &7seconds.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(6, -.1, 2, 6));
+        addModifier("mana", new LinearValue(20, 2));
+        addModifier("damage", new LinearValue(3, 1));
+        addModifier("slow", new LinearValue(4, 0));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        LocationSkillMetadata cast = new LocationSkillMetadata(caster, skill, 20);
+        if (!cast.isSuccessful())
+            return cast;
+
+        Location loc = cast.getHit();
+        double damage = cast.getModifier("damage");
+        int slow = (int) (20 * cast.getModifier("slow"));
+
+        new BukkitRunnable() {
+            int j = 0;
+
+            @Override
+            public void run() {
+
+                if (j++ > 8) {
+                    cancel();
+                    return;
+                }
+
+                Location loc1 = loc.clone().add(offset() * radius, 0, offset() * radius).add(0, 2, 0);
+                loc.getWorld().spawnParticle(Particle.FIREWORKS_SPARK, loc1, 32, 0, 2, 0, 0);
+                loc.getWorld().spawnParticle(Particle.SNOWBALL, loc1, 32, 0, 2, 0, 0);
+                loc.getWorld().playSound(loc1, Sound.BLOCK_GLASS_BREAK, 2, 0);
+
+                Line3D line = new Line3D(loc.toVector(), loc.toVector().add(new Vector(0, 1, 0)));
+                for (Entity entity : MMOCoreUtils.getNearbyChunkEntities(loc1))
+                    if (line.distanceSquared(entity.getLocation().toVector()) < radius && Math.abs(entity.getLocation().getY() - loc1.getY()) < 10 && MMOCoreUtils.canTarget(caster.getPlayerData(), entity)) {
+                        caster.attack((LivingEntity) entity, damage, DamageType.SKILL, DamageType.MAGIC);
+                        ((LivingEntity) entity).addPotionEffect(new PotionEffect(PotionEffectType.SLOW, slow, 0));
+                    }
+            }
+        }.runTaskTimer(MMOCore.plugin, 0, 5);
+        return cast;
+    }
+
+    private double offset() {
+        return random.nextDouble() * (random.nextBoolean() ? 1 : -1);
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Minor_Healings.java

@@ -0,0 +1,41 @@
+package net.Indyuce.mmocore.skill.list;
+
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.attribute.Attribute;
+import org.bukkit.entity.LivingEntity;
+
+public class Minor_Healings extends Skill {
+    public Minor_Healings() {
+        super();
+        setMaterial(Material.GOLDEN_APPLE);
+        setLore("Instantly grants &a{heal} &7HP to the", "target. Sneak to cast it on yourself.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("mana", new LinearValue(4, 2));
+        addModifier("heal", new LinearValue(4, 2));
+        addModifier("cooldown", new LinearValue(9, -.1, 1, 5));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        SkillMetadata cast = caster.getPlayer().isSneaking() ? new SkillMetadata(caster, skill) : new TargetSkillMetadata(caster, skill, 50, true);
+        if (!cast.isSuccessful())
+            return cast;
+
+        LivingEntity target = cast instanceof TargetSkillMetadata ? ((TargetSkillMetadata) cast).getTarget() : caster.getPlayer();
+
+        double max = target.getAttribute(Attribute.GENERIC_MAX_HEALTH).getValue();
+        target.setHealth(Math.min(max, target.getHealth() + cast.getModifier("heal")));
+
+        new SmallParticleEffect(target, Particle.HEART, 1);
+        target.getWorld().playSound(target.getLocation(), Sound.ENTITY_PLAYER_LEVELUP, 2, 2);
+        return cast;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Neptune_Gift.java

@@ -1,7 +1,8 @@
-package net.Indyuce.mmocore.skill;
+package net.Indyuce.mmocore.skill.list;
 
 import java.util.Optional;
 
+import net.Indyuce.mmocore.skill.PassiveSkill;
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.event.EventHandler;
@@ -10,11 +11,11 @@ import org.bukkit.event.Listener;
 import net.Indyuce.mmocore.MMOCore;
 import net.Indyuce.mmocore.api.event.PlayerResourceUpdateEvent;
 import net.Indyuce.mmocore.api.player.PlayerData;
-import net.Indyuce.mmocore.api.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill;
 import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
 import io.lumine.mythic.lib.version.VersionMaterial;
 
-public class Neptune_Gift extends Skill implements Listener {
+public class Neptune_Gift extends PassiveSkill {
 	public Neptune_Gift() {
 		super("NEPTUNE_GIFT");
 		setName("Neptune's Gift");

src/main/java/net/Indyuce/mmocore/skill/list/Power_Mark.java

@@ -0,0 +1,134 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import io.lumine.mythic.lib.damage.DamageType;
+import io.lumine.mythic.lib.version.VersionMaterial;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.PassiveSkill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.*;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.Listener;
+import org.bukkit.potion.PotionEffect;
+import org.bukkit.potion.PotionEffectType;
+import org.bukkit.scheduler.BukkitRunnable;
+import org.bukkit.util.Vector;
+
+;
+
+public class Power_Mark extends PassiveSkill {
+    public Power_Mark() {
+        super();
+        setMaterial(VersionMaterial.WITHER_SKELETON_SKULL.toMaterial());
+        setLore("Attacking an enemy applies a deadly", "magical mark which spreads accross the", "ground. This mark accumulates &6{ratio}%", "of the damage dealt to the initial", "target over &6{duration} &7seconds.", "", "After this duration, the mark bursts, dealing", "accumulated damage to nearby enemies and", "stunning them for &6{stun}+ &7seconds.", "", "The more damage, the longer the stun.", "", "&e{cooldown}s Cooldown");
+        setPassive();
+
+        addModifier("stun", new LinearValue(.4, .03));
+        addModifier("ratio", new LinearValue(10, 5));
+        addModifier("duration", new LinearValue(10, .1));
+        addModifier("cooldown", new LinearValue(30, 0));
+
+        Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+    }
+
+    @EventHandler
+    public void a(PlayerAttackEvent event) {
+        PlayerData data = PlayerData.get(event.getData().getUniqueId());
+        if (!event.getAttack().getDamage().hasType(DamageType.WEAPON) || !data.getProfess().hasSkill(this))
+            return;
+
+        SkillMetadata cast = data.cast(this);
+        if (!cast.isSuccessful())
+            return;
+
+        new PowerMark(new CasterMetadata(data), cast, event.getEntity().getLocation());
+    }
+
+    public class PowerMark extends BukkitRunnable implements Listener {
+        private final CasterMetadata caster;
+        private final Location loc;
+
+        private final double duration;
+        private final double ratio;
+        private double stun;
+
+        private double accumulate;
+        private int j;
+
+        public PowerMark(CasterMetadata caster, SkillMetadata cast, Location loc) {
+            this.caster = caster;
+            this.loc = loc;
+
+            loc.getWorld().playSound(loc, Sound.BLOCK_END_PORTAL_FRAME_FILL, 2, 1);
+
+            duration = cast.getModifier("duration");
+            ratio = cast.getModifier("ratio") / 100;
+            stun = cast.getModifier("stun");
+
+            runTaskTimer(MMOCore.plugin, 0, 1);
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+        }
+
+        private void unregister() {
+            PlayerAttackEvent.getHandlerList().unregister(this);
+            cancel();
+        }
+
+        @EventHandler(priority = EventPriority.HIGHEST)
+        public void stackDamage(PlayerAttackEvent event) {
+            if (!event.isCancelled() && j < 20 * (duration - 2) && radiusCheck(event.getEntity().getLocation()) && event.getPlayer().equals(caster.getPlayer())) {
+                accumulate += event.getAttack().getDamage().getDamage() * ratio;
+                new ParabolicProjectile(event.getEntity().getLocation().add(0, event.getEntity().getHeight() / 2, 0), loc, () -> loc.getWorld().playSound(loc, Sound.ENTITY_EXPERIENCE_ORB_PICKUP, 1, 1), Color.PURPLE);
+            }
+        }
+
+        private boolean radiusCheck(Location loc) {
+            return loc.getWorld().equals(this.loc.getWorld()) && loc.distanceSquared(this.loc) < 16;
+        }
+
+        @Override
+        public void run() {
+            if (j++ > duration * 20) {
+                unregister();
+
+                for (double a = 0; a < Math.PI * 2; a += Math.PI * 2 / 17)
+                    new ParabolicProjectile(loc, loc.clone().add(6 * Math.cos(a), 0, 6 * Math.sin(a)), Particle.SPELL_WITCH);
+
+                loc.getWorld().playSound(loc, Sound.ENTITY_GENERIC_EXPLODE, 2, 0);
+                loc.getWorld().spawnParticle(Particle.EXPLOSION_LARGE, loc.clone().add(0, 1, 0), 16, 2, 2, 2, 0);
+                loc.getWorld().spawnParticle(Particle.EXPLOSION_NORMAL, loc.clone().add(0, 1, 0), 24, 0, 0, 0, .3f);
+
+                stun += Math.log(Math.max(1, accumulate - 10)) / 8;
+
+                for (Entity entity : MMOCoreUtils.getNearbyChunkEntities(loc))
+                    if (entity.getLocation().distanceSquared(loc) < 25 && MMOCoreUtils.canTarget(caster.getPlayerData(), entity)) {
+                        ((LivingEntity) entity).addPotionEffect(new PotionEffect(PotionEffectType.SLOW, (int) (stun * 20), 10, false, false));
+                        caster.attack((LivingEntity) entity, accumulate, DamageType.SKILL, DamageType.MAGIC);
+                        entity.setVelocity(format(entity.getLocation().subtract(loc).toVector().setY(0)).setY(.3));
+                    }
+                return;
+            }
+
+            if (j % 2 == 0 && j > 20 * (duration - 2))
+                loc.getWorld().playSound(loc, VersionSound.BLOCK_NOTE_BLOCK_PLING.toSound(), 1, (float) (1 + (j - 20 * (duration - 2)) / 40));
+
+            double a = (double) j / 16;
+            double r = Math.sqrt(Math.min(duration * 2 - (double) j / 10, 4)) * 2;
+            for (double k = 0; k < Math.PI * 2; k += Math.PI * 2 / 5)
+                loc.getWorld().spawnParticle(Particle.SPELL_WITCH, loc.clone().add(r * Math.cos(k + a), 0, r * Math.sin(k + a)), 0);
+        }
+    }
+
+    private Vector format(Vector vec) {
+        return vec.length() < .01 ? new Vector(0, 0, 0) : vec.normalize();
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Sneaky_Picky.java

@@ -0,0 +1,48 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.api.event.PlayerAttackEvent;
+import io.lumine.mythic.lib.damage.DamageType;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.skill.PassiveSkill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.event.EventHandler;
+
+public class Sneaky_Picky extends PassiveSkill {
+    public Sneaky_Picky() {
+        super();
+        setMaterial(Material.DIAMOND_SWORD);
+        setLore("Your attack is empowered by &f{extra}% &7when", "delivering the first blow during a fight.", "", "&9Costs {mana} {mana_name}");
+        setPassive();
+
+        addModifier("cooldown", new LinearValue(0, 0));
+        addModifier("mana", new LinearValue(8, 1));
+        addModifier("extra", new LinearValue(50, 20));
+
+        Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+    }
+
+    @EventHandler
+    public void a(PlayerAttackEvent event) {
+        PlayerData data = PlayerData.get(event.getData().getUniqueId());
+        if (!event.getAttack().getDamage().hasType(DamageType.WEAPON) || data.isInCombat() || !data.getProfess().hasSkill(this))
+            return;
+
+        SkillMetadata cast = data.cast(this);
+        if (!cast.isSuccessful())
+            return;
+
+        data.cast(cast.getInfo());
+
+        event.getAttack().getDamage().multiply(1 + cast.getModifier("extra") / 100, DamageType.WEAPON);
+        LivingEntity target = event.getEntity();
+        target.getWorld().spawnParticle(Particle.SMOKE_NORMAL, target.getLocation().add(0, target.getHeight() / 2, 0), 64, 0, 0, 0, .05);
+        target.getWorld().playSound(target.getLocation(), Sound.ENTITY_ZOMBIE_ATTACK_IRON_DOOR, 1, 2);
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Telekinesy.java

@@ -0,0 +1,98 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.version.VersionMaterial;
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.entity.Entity;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerInteractEvent;
+import org.bukkit.scheduler.BukkitRunnable;
+
+public class Telekinesy extends Skill {
+    public Telekinesy() {
+        super();
+        setMaterial(VersionMaterial.MAGENTA_DYE.toMaterial());
+        setLore("You take the control over your target", "for &9{duration} &7seconds. Left click to throw him.", "Knockback force: &f{knockback}%", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(20, -.3, 10, 20));
+        addModifier("mana", new LinearValue(20, 2));
+        addModifier("knockback", new LinearValue(50, 10));
+        addModifier("duration", new LinearValue(3, .1, 3, 6));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 7);
+        if (!cast.isSuccessful())
+            return cast;
+
+        caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 1);
+        new TelekinesyRunnable(caster.getPlayerData(), cast.getTarget(), cast.getModifier("duration"), cast.getModifier("knockback") / 100);
+        return cast;
+    }
+
+    public static class TelekinesyRunnable extends BukkitRunnable implements Listener {
+        private final Entity entity;
+        private final PlayerData data;
+
+        private final long duration;
+        private final double d, f;
+
+        private int j;
+
+        public TelekinesyRunnable(PlayerData data, Entity entity, double duration, double force) {
+            this.entity = entity;
+            this.data = data;
+
+            d = data.getPlayer().getLocation().distance(entity.getLocation());
+            f = force;
+            this.duration = (long) (20 * duration);
+
+            runTaskTimer(MMOCore.plugin, 0, 1);
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+        }
+
+        @EventHandler
+        public void a(PlayerInteractEvent event) {
+            if (event.getPlayer().equals(data.getPlayer()) && event.getAction().name().contains("LEFT_CLICK")) {
+                entity.setVelocity(data.getPlayer().getEyeLocation().getDirection().multiply(1.5 * f));
+                entity.getWorld().playSound(entity.getLocation(), VersionSound.ENTITY_FIREWORK_ROCKET_BLAST.toSound(), 2, 1);
+                entity.getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(0, entity.getHeight() / 2, 0), 16);
+                close();
+            }
+        }
+
+        @Override
+        public void run() {
+            if (!data.isOnline() || entity.isDead() || j++ >= duration) {
+                close();
+                return;
+            }
+
+            if (j % 8 == 0)
+                new ParabolicProjectile(data.getPlayer().getEyeLocation(), entity.getLocation().add(0, entity.getHeight() / 2, 0), Particle.SPELL_WITCH);
+
+            Location loc = data.getPlayer().getEyeLocation().add(data.getPlayer().getEyeLocation().getDirection().multiply(d));
+            entity.setVelocity(loc.subtract(entity.getLocation().add(0, entity.getHeight() / 2, 0)).toVector().multiply(2));
+            entity.setFallDistance(0);
+        }
+
+        private void close() {
+            cancel();
+            HandlerList.unregisterAll(this);
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Warp.java

@@ -0,0 +1,59 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.version.VersionSound;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.Particle;
+import org.bukkit.Sound;
+import org.bukkit.block.Block;
+
+public class Warp extends Skill {
+    public Warp() {
+        super();
+        setMaterial(Material.ENDER_PEARL);
+        setLore("Teleports you to target location.", "Max. Range: &5{range}", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(15, -.3, 2, 15));
+        addModifier("mana", new LinearValue(8, 3));
+        addModifier("range", new LinearValue(16, 1, 0, 100));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        WarpSkillMetadata cast = new WarpSkillMetadata(caster, skill);
+        if (!cast.isSuccessful())
+            return cast;
+
+        caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), Sound.BLOCK_END_PORTAL_FRAME_FILL, 1, 2);
+
+        Location loc = cast.block.getLocation().add(0, 1, 0);
+        loc.setYaw(caster.getPlayer().getLocation().getYaw());
+        loc.setPitch(caster.getPlayer().getLocation().getPitch());
+
+        new ParabolicProjectile(caster.getPlayer().getLocation().add(0, 1, 0), loc.clone().add(0, 1, 0), () -> {
+            if (caster.getPlayer().isOnline() && !caster.getPlayer().isDead()) {
+                caster.getPlayer().teleport(loc);
+                caster.getPlayer().getWorld().spawnParticle(Particle.EXPLOSION_LARGE, caster.getPlayer().getLocation().add(0, 1, 0), 0);
+                caster.getPlayer().getWorld().spawnParticle(Particle.SPELL_INSTANT, caster.getPlayer().getLocation().add(0, 1, 0), 32, 0, 0, 0, .1);
+                caster.getPlayer().getWorld().playSound(caster.getPlayer().getLocation(), VersionSound.ENTITY_ENDERMAN_TELEPORT.toSound(), 1, 1);
+            }
+        }, 2, Particle.SPELL_INSTANT);
+        return cast;
+    }
+
+    private class WarpSkillMetadata extends SkillMetadata {
+        private Block block;
+
+        public WarpSkillMetadata(CasterMetadata caster, SkillInfo skill) {
+            super(caster, skill);
+
+            if (isSuccessful() && (block = caster.getPlayer().getTargetBlock(null, (int) getModifier("range"))) == null)
+                abort();
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/list/Weaken.java

@@ -0,0 +1,76 @@
+package net.Indyuce.mmocore.skill.list;
+
+import io.lumine.mythic.lib.version.VersionMaterial;
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.util.math.formula.LinearValue;
+import net.Indyuce.mmocore.api.util.math.particle.ParabolicProjectile;
+import net.Indyuce.mmocore.api.util.math.particle.SmallParticleEffect;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.metadata.SkillMetadata;
+import net.Indyuce.mmocore.skill.metadata.TargetSkillMetadata;
+import org.bukkit.Bukkit;
+import org.bukkit.Particle;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.LivingEntity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
+import org.bukkit.util.Vector;
+
+public class Weaken extends Skill {
+    public Weaken() {
+        super();
+        setMaterial(VersionMaterial.MAGENTA_DYE.toMaterial());
+        setLore("The target is weakened for", "&8{duration} &7seconds and is dealt", "&7extra &8{ratio}% &7damage.", "", "&e{cooldown}s Cooldown", "&9Costs {mana} {mana_name}");
+
+        addModifier("cooldown", new LinearValue(20, -.1, 5, 20));
+        addModifier("mana", new LinearValue(4, 1));
+        addModifier("ratio", new LinearValue(30, 3));
+        addModifier("duration", new LinearValue(10, -.1, 5, 10));
+    }
+
+    @Override
+    public SkillMetadata whenCast(CasterMetadata caster, SkillInfo skill) {
+        TargetSkillMetadata cast = new TargetSkillMetadata(caster, skill, 7);
+        if (!cast.isSuccessful())
+            return cast;
+
+        LivingEntity target = cast.getTarget();
+        new ParabolicProjectile(caster.getPlayer().getLocation().add(0, 1, 0), target.getLocation().add(0, target.getHeight() / 2, 0), randomVector(caster.getPlayer()), () -> {
+            if (!target.isDead())
+                new Weakened(target, cast.getModifier("ratio"), cast.getModifier("duration"));
+        }, 2, Particle.SPELL_WITCH);
+        return cast;
+    }
+
+    private Vector randomVector(Player player) {
+        double a = Math.toRadians(player.getEyeLocation().getYaw() + 90);
+        a += (random.nextBoolean() ? 1 : -1) * (random.nextDouble() + .5) * Math.PI / 6;
+        return new Vector(Math.cos(a), .8, Math.sin(a)).normalize().multiply(.4);
+    }
+
+    public static class Weakened implements Listener {
+        private final Entity entity;
+        private final double c;
+
+        public Weakened(Entity entity, double ratio, double duration) {
+            this.entity = entity;
+            this.c = 1 + ratio / 100;
+
+            new SmallParticleEffect(entity, Particle.SPELL_WITCH);
+
+            Bukkit.getPluginManager().registerEvents(this, MMOCore.plugin);
+            Bukkit.getScheduler().scheduleSyncDelayedTask(MMOCore.plugin, () -> EntityDamageByEntityEvent.getHandlerList().unregister(this), (int) duration * 20);
+        }
+
+        @EventHandler
+        public void a(EntityDamageByEntityEvent event) {
+            if (event.getEntity().equals(entity)) {
+                event.getEntity().getWorld().spawnParticle(Particle.SPELL_WITCH, entity.getLocation().add(0, entity.getHeight() / 2, 0), 16, .5, .5, .5, 0);
+                event.setDamage(event.getDamage() * c);
+            }
+        }
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/metadata/LocationSkillMetadata.java

@@ -0,0 +1,51 @@
+package net.Indyuce.mmocore.skill.metadata;
+
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
+import org.bukkit.FluidCollisionMode;
+import org.bukkit.Location;
+import org.bukkit.util.RayTraceResult;
+
+public class LocationSkillMetadata extends SkillMetadata {
+    private Location loc;
+
+    /**
+     * @param caster Player casting the skill
+     * @param skill  Skill being cast
+     * @param range  Skill raycast range
+     */
+    public LocationSkillMetadata(CasterMetadata caster, SkillInfo skill, double range) {
+        this(caster, skill, range, false);
+    }
+
+    /**
+     * @param caster Player casting the skill
+     * @param skill  Skill being cast
+     * @param range  Skill raycast range
+     * @param buff   If the skill is a buff ie if it can be cast on party members
+     */
+    public LocationSkillMetadata(CasterMetadata caster, SkillInfo skill, double range, boolean buff) {
+        super(caster, skill);
+
+        if (isSuccessful()) {
+
+            RayTraceResult result = caster.getPlayer().getWorld().rayTrace(caster.getPlayer().getEyeLocation(),
+                    caster.getPlayer().getEyeLocation().getDirection(), range, FluidCollisionMode.ALWAYS, true, 1.0D,
+                    entity -> MMOCoreUtils.canTarget(caster.getPlayerData(), entity, buff));
+            if (result == null)
+                abort(CancelReason.OTHER);
+            else
+                loc = result.getHitBlock() != null ? result.getHitBlock().getLocation()
+                        : result.getHitEntity() != null ? result.getHitEntity().getLocation() : null;
+        }
+    }
+
+    public boolean hasHit() {
+        return loc != null;
+    }
+
+    public Location getHit() {
+        return loc;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/metadata/SkillMetadata.java

@@ -0,0 +1,123 @@
+package net.Indyuce.mmocore.skill.metadata;
+
+import net.Indyuce.mmocore.MMOCore;
+import net.Indyuce.mmocore.api.player.PlayerData;
+import net.Indyuce.mmocore.comp.flags.FlagPlugin.CustomFlag;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
+
+import java.util.Objects;
+
+public class SkillMetadata {
+    private final SkillInfo skill;
+    private final int level;
+    private final double mana, cooldown, stamina;
+
+    private CancelReason cancelReason;
+
+    public SkillMetadata(CasterMetadata caster, SkillInfo skill) {
+        this.skill = skill;
+
+        PlayerData data = caster.getPlayerData();
+
+        level = data.getSkillLevel(skill.getSkill());
+        cooldown = (skill.getSkill().hasModifier("cooldown") ? data.getSkillData().getCooldown(skill) : 0);
+        mana = (skill.getSkill().hasModifier("mana") ? skill.getModifier("mana", level) : 0);
+        stamina = (skill.getSkill().hasModifier("stamina") ? skill.getModifier("stamina", level) : 0);
+        cancelReason = !data.hasSkillUnlocked(skill) ? CancelReason.LOCKED
+                : cooldown > 0 ? CancelReason.COOLDOWN
+                : mana > data.getMana() ? CancelReason.MANA
+                : stamina > data.getStamina() ? CancelReason.STAMINA
+                : !data.isOnline() ? CancelReason.OTHER
+                : !MMOCore.plugin.flagPlugin.isFlagAllowed(data.getPlayer(), CustomFlag.SKILLS) ? CancelReason.FLAG
+                : null;
+    }
+
+    public SkillMetadata(PlayerData data, SkillInfo skill, CancelReason reason) {
+        this.skill = skill;
+        this.cancelReason = reason;
+
+        level = data.getSkillLevel(skill.getSkill());
+        cooldown = skill.getSkill().hasModifier("cooldown") ? data.getSkillData().getCooldown(skill) : 0;
+        mana = skill.getSkill().hasModifier("mana") ? skill.getModifier("mana", level) : 0;
+        stamina = (skill.getSkill().hasModifier("stamina") ? skill.getModifier("stamina", level) : 0);
+    }
+
+    public Skill getSkill() {
+        return skill.getSkill();
+    }
+
+    public SkillInfo getInfo() {
+        return skill;
+    }
+
+    public int getLevel() {
+        return level;
+    }
+
+    public double getStaminaCost() {
+        return stamina;
+    }
+
+    public double getManaCost() {
+        return mana;
+    }
+
+    public double getCooldown() {
+        return cooldown;
+    }
+
+    public boolean isSuccessful() {
+        return cancelReason == null;
+    }
+
+    public CancelReason getCancelReason() {
+        return cancelReason;
+    }
+
+    public void abort() {
+        abort(CancelReason.OTHER);
+    }
+
+    public void abort(CancelReason reason) {
+        cancelReason = Objects.requireNonNull(reason, "Reason cannot be null");
+    }
+
+    public double getModifier(String modifier) {
+        return skill.getModifier(modifier, level);
+    }
+
+    public enum CancelReason {
+
+        /**
+         * Flag plugin like WorldGuard or any other
+         */
+        FLAG,
+
+        /**
+         * Not enough stamina
+         */
+        MANA,
+
+        /**
+         * Not enough mana
+         */
+        STAMINA,
+
+        /**
+         * Skill still on cooldown
+         */
+        COOLDOWN,
+
+        /**
+         * Skill is locked
+         */
+        LOCKED,
+
+        /**
+         * Anything else
+         */
+        OTHER;
+    }
+}

src/main/java/net/Indyuce/mmocore/skill/metadata/TargetSkillMetadata.java

@@ -0,0 +1,43 @@
+package net.Indyuce.mmocore.skill.metadata;
+
+import io.lumine.mythic.lib.MythicLib;
+import io.lumine.mythic.lib.api.MMORayTraceResult;
+import net.Indyuce.mmocore.api.util.MMOCoreUtils;
+import net.Indyuce.mmocore.skill.CasterMetadata;
+import net.Indyuce.mmocore.skill.Skill.SkillInfo;
+import org.bukkit.entity.LivingEntity;
+
+public class TargetSkillMetadata extends SkillMetadata {
+    private LivingEntity target;
+
+    /**
+     * @param caster Player casting the skill
+     * @param skill  Skill being cast
+     * @param range  Skill raycast range
+     */
+    public TargetSkillMetadata(CasterMetadata caster, SkillInfo skill, double range) {
+        this(caster, skill, range, false);
+    }
+
+    /**
+     * @param caster Player casting the skill
+     * @param skill  Skill being cast
+     * @param range  Skill raycast range
+     * @param buff   If the skill is a buff ie if it can be cast on party members
+     */
+    public TargetSkillMetadata(CasterMetadata caster, SkillInfo skill, double range, boolean buff) {
+        super(caster, skill);
+
+        if (isSuccessful()) {
+            MMORayTraceResult result = MythicLib.plugin.getVersion().getWrapper().rayTrace(caster.getPlayer(), range, entity -> MMOCoreUtils.canTarget(caster.getPlayerData(), entity, buff));
+            if (!result.hasHit())
+                abort();
+            else
+                target = result.getHit();
+        }
+    }
+
+    public LivingEntity getTarget() {
+        return target;
+    }
+}

src/main/resources/config.yml

@@ -45,14 +45,14 @@ default-playerdata:
 # The list of all conditions which must be met for the
 # BLOCK REGEN and BLOCK RESTRICTIONS to apply. Set to
 # 'custom-mine-conditions: []' to disable custom mining entirely.
-custom-mine-conditions:
-- 'world{name="world,world_nether,world_the_end"}'
-- 'region{name="example_region,example_region2,__global__"}'
 #
 # custom-mine-conditions:
 # - 'world{name="__global__"}'
 #
 # ^ will enable custom mining server wide
+custom-mine-conditions:
+    - 'world{name="world,world_nether,world_the_end"}'
+    - 'region{name="example_region,example_region2,__global__"}'
 
 # Set to true to prevent vanilla blocks from being
 # broken when custom mining conditions are met
@@ -121,14 +121,17 @@ vanilla-exp-redirection:
 # Requires a SERVER reload when changed.
 override-vanilla-exp: true
 
+# Check the target player's RPG profile when shift when shift right clicking.
+shift-click-player-profile-check: true
+
 # If main class experience holograms should be displayed
 # whenever a player earns main class exp
-display-main-class-exp-holograms: true 
+display-main-class-exp-holograms: true
 
 # Requires a SERVER reload when changed.
 death-exp-loss:
     enabled: false
-    
+
     # Percentage of current EXP you lose when dying.
     percent: 30