Evoker now makes sense

The Evoker is a weird mob, they have a totem that can stop them from dying, and yet they die with it. So instead of every time you kill one, you get the totem, how about they use it? It makes more sense for it is such a valuable item to have in the world.

The totems could be placed in the mansion because that is where they do most of their things, but it just makes more sense for them to use it.  

Also makes the player work for the totem, instead of a simple farm.