[@Genni]

My brother went with that one, I think. I don't know what he did with it, but I do remember helping him come up with the concept of his character. An evil spirit, formed from the ill intentions of everyone in the room, come into being by the slaughter of an entire cult by Paladins, and only able to do stuff by possessing bodies, and then carrying out the intentions that made up its birth...I wonder if he ever followed it up in his game?

EDIT: Yes, he wanted a Death Domain Cleric, purely because of the concept.