Hi there,

arena is pretty hard at that level. You are missing summons which could help you to combine ninjas easier and treasured tools which could give you some nice initiative.
I suggest to lvl up, get summons and some new ninjas. However that wont help you at all... Since I dont know what ninjas you possess, you can try this:



Or if you have Summer Hinata which was for free in recent event (but Im not sure when it was and if you were able to access that event) try this team:


Anbu Tactics can be replaced with Killing intent in 1st team or Enhancement in either of these