i used Mei ,Tenten GNW , Asuma WB and Water Main
You hope for Water clone to die fast so you get 20 stamina and have 60 stamina round 1 with the buffs from mei and wb asuma and water main your tenten will bring down all clones to 10-20% hp and you can easily kill all of them off after . I was 21k power when i did this

i beat 90-94 with shurado mei tenten gnw water main i'm 22k power but i got extremely lucky with crits on the lvl90 exam ( was able to chaos both sasori and kisame turn 1 ) and turn 2 hit shark crit on all 3 ppl for the 3 man chaos easy win after than because mei's mystery killed sasori deidara and kisame and only itachi was left but alone vs 3 of my characters he couldnt win