Well. you are at the top level of Matsuri with your 300k+ bp and is having no fun of it. But have you considered the oppinion of middle power level people? As someone with 200k bp with level 105, the arena matsuri is a dissaster. I get beaten by op people as in normal matsuri, but I get kicked by p2w below level 95 with about 150k bp that I would win in normal matsuri. I fought someone in arena matsuri at level 90 with Sixpath Naruto, Roshi, earth main and Killer Bee team that I've also encountered in normal matsuri. I won in normal matsuri with lightning main and madara team but got beaten really fast in the arena matsuri. This arena matsuri is made for p2w people too, the really op people can have a bit challenge and the low level p2w have their only disadvantage of low hp removed.