Azure Fang can't beat it at less than 70k power. The Eight inner gates Lee, Iruka, Kurenai lineup works with crimson fist.

You absolutely need to switch to crimson fist to beat it at 50-52k power (with less than 50k power isn't possible neither with CF). MB blitz team can beat it at around 65k power, other mains require 70k+

EDIT: i wanted, for fun, to retry the exam by halting the sweep at 140. With 77k power and ordinary metas i wasn't able to beat it with azure fang, it's doable with specific lineups, but still not doable without using them.