I'll just go with the quirk I gave him in Mori's heart, because why not?

"Power? Ah, I think the Overhand is the most important support in volleyball. Being in the right place at the right time in the right moment, supporting your team with both arms and all ten fingers. So I guess the best way to translate it would be teleportation and being able to provide an extra set of hands where needed?" fingerguns

As for preferred unit skill, probably frog materia.