Was having a lot of trouble trying to do it at level 81 and 41k power, so I stopped trying until today when I just hit level 82. Came back and beat it with the same team (a few hundred power higher) in 1 try using Wind Main, Gaara 5K, Sage Naruto, Iruka and the Sand Dust mystery to cancel the rinnegan buffs so I could burst Jigokudo down quickly in round 2.
The enemy team lost 6k power from 81 -> 82