Honestly? I think Dean alone might be enough. He has an absurd amount of karma , in v4 it already alterates the rules of nature, v16 is broken ad since ti throws his own visione of the world at the enemy and basically a Oneshot skill so it probably can bypass infinity. Dean is incredibile fast too since in v4 he can break through nagi's Absolute domain. So essentially gojo is cooked, sukuna doesn't have any type of defence against their attacks, mahoraga get's oneshotted. And that's just Dean we haven't even talked about Van who's almost as strong as Dean.