I hope Bushido is inheritable, but I feel like it wouldn't be because otherwise Legendary Ryoma would have zero exclusive skills, which would be odd. And unprecedented.
Banner is a skip for me. Also people pointed out that YTiki's attack animation in the trailer looked different than her default Flametongue and are expecting some kind of refine for her soon, if anyone was interested in that.
edit: to make further comments on the Def/Res Link skill, I have this to say, it's a godly skill. An on-demand emblemy buff (Fortify-y, in this case) that activates when Repositioning your units into place or retreating behind your tank. It's some seriously good stuff. You do have to be careful to not overextend too much so that the unit with it is out of reach and with a dead B-skill the following turn (ie: don't be dumb). Far outclasses the Chill skills in the players hands imo, if competing for one B slot.
Odd Attack Wave is alright. Does what it needs to, nothing more, nothing less, nothing revolutionary in any case.