Since the gods fell to earth, their priests have found their magic to be unreliable and fickle. This weakened their hold on the masses, forcing those faiths with the power to do so to clamp down on soceity to maintain their hold.

Strengths: Divine spells, good Fortitude and Will saves, turning/rebuking undead
Weaknesses: Weak Reflex save, divine magic unreliable
Religion: Must have one