diff --git a/Signs.md b/Signs.md
index c7dccd2..53114cd 100644
--- a/Signs.md
+++ b/Signs.md
@@ -403,7 +403,7 @@ The sign will be triggered when the mob "Boss" is killed. The name of the mob ma
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 ### [W]ave
-_TO DO_
+The sign will be triggered when all mobs in the game world are killed. The amount of mobs to to kill can be lowered through the multiplier: While 100/100 mobs have to be killed if the trigger is "W 1", 
 
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