the main problem i see with this formation your fire main at move 4 which is not good as he will cast mystery at last regardless of initiative, your healer is open for dying in round 2-3, better use tobi, fire main, hinata, kurenai with deer summon. I am using more ignition damage based team rather than combo based team which is fire main, gnw kankuro (3*), kakuzu (3*), hinata with shark summon.