Thanos with the HOTU? Wasn't he the second most powerful entity at the time that that particular story got published? In terms of power scaling, I believe that at that power level, he was the third most powerful entity in Marvel history falling just below the One Above All, who recently became second to Starlin's most powerful version of Thanos which happened during the Infinity Siblings arc. Mxy isn't soloing IMO. Not with Pre retcon Beyonder there, and I'm assuming that Molecule Man is at his most powerful levels ever? I can see Marvel taking this. Perpetua up til now is more hype than anything, although I don't doubt that she is powerful, she doesn't have the feats to even be here yet.