Lol a lot of factors. You banned nearly every powerful character group aside from akatsuki and about half of them are banned through extension of the other rules. Here's a few who could defeat the group. Zetsu, Deidara, Konan perhaps and The Kaku Brothers (possibly the only ones who could actually kill Wolverine) and not many more. I was assuming they are taking them on as a group. Individually there are more characters.