you wanna kill, and you wanna talk about how you wanna kill (see Alice's Restaurant Massacree lyrics)
kill the charge d'affaires: you are the summoned demon, a flaw in the charge d'affaires' grid has let you influence this character, and you want to escape the binding of the grid. If the summoner dies, you escape.
As the nodes on the summoning grid get filled:
Ideas for effect cards: