Who can beat Mr. Fantastic with the power cosmic?

no uber-god-powerful cosmic entities, but you can make up a team if you want or something.

superman and thor maybe?

I could if I had the power cosmic. Just fry him and be done with it. No boasting, no grand plans, just fry him.

no enhancing people/heroes. just team-ups. i could say superman w/ mjlonir and gl's ring but he doesnt have those things