Hm, so. Not sure of which Ninjas/Summons you've got but i ran a party which (in my opinion) is pretty good with Sage Naruto/Water main.
This group goes up to 7x combo. Has 2 debuffers, 3 DPS skills with good damage (with Naruto and Main doing AoE). Has Naruto clone to Tank (and you leave Tobi below to avoid sleep by fire mains), The Main focus on CC skills (Neurotoxin) and the poison makes impossible for you to get Controlled by Mirror return from other teams. And has some support from both Main and Jigokudo.
This team is really good against Earth and Fire, specially but you can put a fight against other people as well.
Our weak spot is anyone that can kill Naruto on Round 0 or Round 1 (i call round 0 the one which you can't use the skills of most your chars xD), but that'll only happen if the other party has a much more overwhelming power. And be careful with players that have more initiative than you because 100% they'll go for Naruto on Round 1 :D
Hope it helps! (And hope you read :D)
This post was last edited by Morphina at 2016-11-10 22:44