he has his pluses and minuses. but he is good until you can get someone to better fit the roles of hitting high and low floats, igniting and paralyzing.

This. Though Sasuke isn't much stronger and just as often targeted. I say get them both 3*/4* and use them until you don't see them lasting more than 2 rounds. Find someone with more defense, speed or resistance to last until you have taken down an enemy.