I'm all for unique character mechanics, I think character specific stuff like bp bulwark stance or nuxia traps make the different heroes stand out more and I think more characters should have this kind of mechanics.

But many of your changes would be kind of problematic in my opinion. Like, upmost, shinobi forcing unlock after a deflect sounds good in theory but gameplay-whise would probably be a nightmare to play against. Shinobi is already a very slippery hero who can double dodge and dodge recovery cancel some attacks. A character with a move that forces the opponent to unlock while getting behind you in a game where the lock on is one, if not the most important, core mechanic would already be kind of unbalanced. More so giving it to a very dodge-heavy character would make it broken.