Also, how could you not have both a team or school aspect in the game? I've seen both the education/mentoring standpoint and the team standpoint all done in the same game.
I'd just rather do one or the other, the school setting would have events with villains and stuff, it's just they'd be more erratic and MHA based, with a team it'd be like solely villains along with a bit of slice of life. Also could you elaborate on the powers? I don't play guilty gear.