Esbilon
Seven Thousand Club
There's little functional difference between a Permanent Charm that's free on Attunement, and passive powers of the armour, and to me it seems rather more clean to separate them. I'd make the App boost and temperature resistance passive powers, the former only if resonant, and costume change and disguice bonus with Charm-activation.Hm... perhaps reduce them each to 1, keep the appearance dot, make it a permanent type with 2m to instantly change attire and dissonance to orichalcum dropping the appearance boost.
Mmmm, at some point suring my thoughts, I'd forgotten that the disarm gambit needs to hit with a Decisive attack first, so we do need Excellency support to be able to use this effectively. However "have my clothes lash out instictively" isn't really part of any Ability I can name... Maybe just roll a set pool of 10, and letting the wearer spend up to 10 extra motes to add dice?Well, without an ability there is no excellency support... I wonder, depending on how you frame it, perhaps telekinetic type effects and all, Wits + Presence or Wits + Integrity could work as a defense by mental reflex with some excellency hook.
Alternatively, with no excellency support I could see Wits+Will with wound levels received as non-charm successes. and the roll ignores the wound penalty.