And what do you think it should do?
That can't be done perfectly well purely in RP, I mean.
Ability to influence follower count (to a lesser effect than preaching, obviously, but more discreet as well: perhaps automatic conversion of peasants whenever the unit performs well in battle), construction of shrines or other infrastructure of similar working, ability to hunt down heretics (similar to looting), ability to call in favors from high-follower regions (such as cheaper repairs or entertainment), greater morale bonus when visiting temples of the faith, morale bonuses when sacking heathen temples, ability to convert foreign nobles if an elder.
Can't change out of the subclass, as with heroes, and needs to be part of a religion: loses access to all special abilities if the religion dies, until he picks up another at least.
That's the kind of stuff I'd like to see.
