Humans are creatures, too, so one of Pilot, Teacher, Ruler, Scuba Diver?
I wouldn't call an ANGEL a creature.
Post-spoilers: I suppose you could argue that angels were created, making them a creature? I agree that there are too many human roles (I missed Agent), and body parts for those to be the fourth word.
Im very solid on FIELD, fairly certain of COPPER, but Antarctica seems the only other logical 3rd
"Superdeath seems to have acquired a rep for aggression somehow. In this game that's going to help us because he's going to go to the negotiating table with twitchy eyes and slightly too wide a grin and terrify the neighbors into favorable border agreements, one-sided tech deals and staggered NAPs."
-Old Harry. PB48.