ok then
neutral b-getsuga tensho, basically give it charge levels, not sure on percentage though for any of them
side b-flash step, ichigo dashes through the opponent(s) doing about 6% damage(since it will be pretty fast doesnt need to be extremely powerful)
up b-upward flashstep(probably not the best idea, since its about the same as side b) ichigo does a flash step upward -_-
down b-hollow mask, ichigo pulls out his hollow mask, his attacks will be stronger but he will take damage from using it(you get the idea)
hope that helps