Looked over Vander, there is one thing I'm not sure about: shouldn't RBA benefit from Ki focus too? I mean, you can "channel" it's power to the weapon and use it's properties as if the weapon is magical, is it limited to melee or held weapons?
Also a neatpick: there is type error in:
Five Storms Move Disciplin
Works on any ranged attack..."Also, you deal an extra 1 acid damage on successful ranged attacks until the end of the encounter."
"If you've reached at least one milestone today, instead deal an extra 2 acid damage on successful ranged attacks with the acid keyword until the end of the encounter."