Heart flux is quite op in the team danzo talked about (mb in pos 1, iruka, madara, danzo)

Iaido flash is op in the team ay 4th full sb, samui, darui, mb.

Arena prowess is meant to be a passive for gnw/ranked/bonds but is hard to take full advantage of it (something like if they don't kill your main soon in round 3+ after half of the field is wiped out you are so much boosted that you land 80k with standard attack...)