Well, Arena is all about buffing and trying to kill your opponent within a couple of rounds and the main you use. I recommend using a standard attack team. If your lee has fully skillbreaks, Shira, GNW Hinata, Lee, Fire main (with mirror) 44421 with snake

Also, Sage Naruto, Chiriku, Wind Main, Kurenai (only if fully skill broken) 43111 with dog of hell