[barnstenchfartface]

By my recollection the only time he's done the whole finisher hand gestures thing outside his Ore and Boost Damashii is Edison in episode 5. He hasn't done it with Musashi or any other form that I can remember. He also does it when he draws an Eyecon from an object or when he purifies people from possession, but I don't think Musashi has done that either...

On the other hand, Musashi has used Naginata mode, and it's not like that's any other form's signature weapon so...they could have included that if they wanted to.

Bandai really isn't feeling like including many things this year.