This team is hard to counter to be honest. I can't think a way to beat this team if you have lower 1st pos ini. Once swimsuit sakura comes out, it will be more cancerous.

Maybe an immune team that have 10 combo chase of ignite and poison, or ninjas that can debuff once they are attacked EG: SB Hanzo and Roshi? Expect your main char to be useless because they will ending up being chaos'ed except for fire main with reflect.

Maybe the team below will work once Hanzo skill break was released on the game. I don't know. I just did my best.