I missed iruka during the initial days. Didn't realise he can be so useful for fire main on nine tail...so

Anyway, here's my team: Fire main, Anko, Guy, Tenten and my current level is 72
I tried using choji by replacing guy, but even if he is fire, the overall dmg was a bit lower. So, currently *ing with the above team.
Note: You should always pay 30k gold for increased buff, its totally worth it. I'm mostly a f2p player, so didn't buy jonin medal. But I'm paying that 30 coupon for increased stats, since I can place top 15 and get 25 coupon as reward anyway. Increased dmg gives incresed exp and gold, so its worth it.

Main Skill: 2-2-1-3-1 with tonton summon(he has a bonus against world boss).
Position: MC- X - Anko
Guy- X - X
Tenten - X - X
Using skills in order here is important to do more dmg. Here's how I use them:
Round 1: Anko barrier
Round 2: Main's dragon flame jutsu
Round 3: Guy's mystry. wait for your main to finish his standard attack and then use anko's mystry.
Round 4: Use Anko's mystry first. then Use your main and tenten's mystry.

This way you always make sure to deal dmg on a barrier. The reason to put anko there, cause she gets ninjutsu buff everytime she's attacked. and your clone is protected this way, that deals some dmg too.

Iruka can be used here to replace guy very easily. He's a fire type, gives attack/ninjtsu buff and has 10-hit combo - everything you want for nine tail.

I reserver my place on top 15 with this setup. I dont use coupons to revive here, not worth for me. This post was last edited by ind***@gmail.com at 2016-9-10 20:56

Skills:
1) Dragon flame jutsu. This is more useful.
2) Next select that enhancement of fire style since it gives 40% ninjutsu/attakc buff for fire ninja's in your party. Anko and iruka are both fire type.
3) you need a summon that can do 10-hit combo, so tonton or chamelion. Tonton is prefered since he has a bonus against nine tail.
4) When you reach level 55, use clone skill, since it can do some extra dmg.

Also dont forget about position and order of skills. Dont auto this fight. Use the position and skill activation order mentioned in above post to maximize your dmg. Always pay 30k gold coins ahead, its totally worth it.
Good luck.