PTR 2 NPCs

NPC #78636 (possibly named "Invis Effect Yak") doesn't exist. It may have been removed from the game.
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Invis Effect Yak - Live
Invis Effect Yak - PTR
Invis Effect Yak - PTR 2
Invis Effect Yak - Beta
Invis Effect Yak - Classic
Invis Effect Yak - Burning Crusade
Invis Effect Yak - Wrath of the Lich King
Invis Effect Yak - Cataclysm
 
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