LogFAQs > #974889138

I don't know if this is exactly what you're looking for since it's not something the player does, but WoW is run (or at least used to be run) by invisible creatures (often rabbits). For a lot of things in the game, the easiest way to do it is to create a spell and have an NPC cast that spell. So say a boss has a mechanic where he's firing a laser at you. What's actually happening is that there's an invisible rabbit chasing you, casting a fire spell, and the graphic just follows the invisible rabbit.

The same thing happens with certain quest objectives. They have a very straightforward quest tracking where killing one mob equals one advancement in the quest. But if they have a more unusual quest objective, they can have that action spawn an invisible rabbit that instantly dies which is what the quest is actually tracking.