OK, Ex-Asmodean reads this way: "Choose one: you gain a +1 trait bonus on attack rolls and weapon damage rolls or you gain a +1 trait bonus on the save DCs of your spells against agents of House Thrune and worshipers of Asmodeus, including most (but not all) devils."
How widely do I apply this for my PCs? Do I give that to a PC when they fight the Chelish Citizens thugs? What about Dottari? How do I know who worships Asmodeus?