I passed with 9.2K power, level 51 as Wind main using this lineup.

X-Karin-X
Main-Guy-Hinata
X-X-X

Talents: 3311

Round 1: Hinata ult.
Round 2: Guy ult Kisame > Main ult > Hinata ult
Round 3: Guy ult Kisame > Kisame dead.

Then just do your thing and hope for RNG :)

Goodluck!