Batman, Iron man & Reed Richards gets 3 years prep. No one knows about this so no one can prepare for it. They can use all the resources from there universe, new god tech ect. They have a file on each opponent which includes :their powers,personal history, feats, mental stability and the potential of all their abilities, it also includes psycho analysis of the subject including their fears, the way they think and how they use their powers.
No reality warper, no telepathy, cosmic/semi cosmic entities, High scale energy manipulation higher than Surfer, No high scale magic users.
Batmn, Reed Richards & Iron Man
Vs
Everyone