I highly doubt this team will work for f2p arena, pvp outside arena is out of the question with this team. As far as I know you get 10% of your total stats towards your lvl100 arena default team, you already have 70k+ power judging from your costume which mean's your ninjas do more damage by default I mean your zabuza does like 350 damage per combo hit I don't think the average player can push out that much damage with zabuza and one more thing I should point out that most of those arena players were lower initiative there is no way anyone would let kisame do his mystery like that and not only that but even with roshi keep buffing himself with each hit you were still doing like 1000-1200 damage to him with kisame and zabuza plus roshi didn't do his mystery 2 times first on round 2 and then on round 3 he did his mystery after your water main did hers, to be honest seems to like you massively overpowered that guy in terms of initiative. I am not trying to be mean here just offering some criticism because zabuza and kisame are basically worthless as ninjas in this game not even their stat growths are worth anything.