all ill say is get iruka from the next event he is in (30 frags for 2 star can be enough), recruit windblade from the new chase, events, or just luck in survival (i was able to get all 100 frags to 4 star mine from survival), and go after sage naruto in the sage treasure and u can pretty much beat 100-120 with dealing massive damage with switching in other free ninjas like hinata and kank when u need to stall. the only other ninja i think that could help alot is ao that old man is so helpful at intercepting interrupts so u can force the battle to go your way.