Imperial Bishop
Banned
That Little Witch Academia PS4 game reminds me I should watch that TV series.
Also, I thought it over & instead of a Jojo or One Piece fighter in the style of DB FighterZ, gimme a flat-out Shonen Jump crossover fighter in that style so we can have other franchises like HxH included. Heck, you got a decent amount from J-Stars Victory Vs. you could work in (though maybe swap out some characters & make some support like Hisoka playable).
Jump Ultimate Stars is the closest you'll get to that.