try the shikamarus buff to you tank more :v

Pretty much you just need to have high bp, around the ranges of like 135k+ at least. Other then that, those yt teams are the best way to go unless you have some hax ninjas like so6p naruto. If you don't you just need to keep trying with the team that works best. The exam difficulty lowers everytime a certain amount of people complete it so you c*e that to your advantage too.

kushina habanero tsunade sannin war water main sakura cloak.

you should be able to win in 10 rounds by spreading poison and interrupting the annoying ones unless your power is excessively too low.

here, personally speaking, i used kisame move 1, AGK move 2 with over 10k initiative (so moves before the enemy move 1 even if is in move 2) and kurama naruto with wind main.