Class-based. I have one paladin, one cleric, one fighter/thief, and one fighter/maybe something else? The sort of thing that makes me wonder if I want a more recent handbook to determine whether there's something else that would be fun to add. I was thinking of wizard. . .
Meanwhile, one character also has, by nature, a Constitution of 3. The only reason he lived long enough to adventure was a magical talisman, the price of which is adventuring for its owner. I will have to consider how long he will have to adventure for. They might shift his duties depending on the events of the story.
And having given him a backstory like that, the paladin and cleric, who are twins, need a better one. I know that they both aspired to be clerics, and one was turned toward paladinhood instead. Hmmm. . . I think there's going to be at least a little pressure on them, though they jumped at it. It involves an inheritance, I suspect.
And lots of little plot bunnies are bounding around suggesting -- philosophy. About questions of clerical vs. wizardly magic. About the monotheistic religion, with questions of godhood and metaphysics lingering.