Added the 1st level maneuvers and stance.
Removed the forbidden cost to attack rolls, just AC penalty now.
Added rule that the purple mage heretic can use one light weapon or wand while holding the sutra scroll (Byakuren does hold her half-vajra simultaneously with her glowing artifact), or can just punch people while grabbing it.
Anti-silence stuff would appear higher up in the class.
I suppose I could just make dual progression instead of tri-progression, but heh, I'm seriously tempted to see if I can make this whole arcane+divine+maneuvers thing work. That's kinda the whole point of Byakuren. "I'm gonna be a buddhist priest! AND a youkai mage! AND a martial artist! Oh, dear, why do I have so few hands, guess I'll have to juggle my fingers with a bunch of stuff simultaneously."
As for the difference from Marisa/Alice, well, it's mentioned at several places that Byakuren does directly draw powers from other youkai. Faith in monsters is still faith (and probably why she couldn't break away on her own from Makai, she was all by herself). Marisa and Alice may've learned from others at start, but they're independent entitities now.