Cyclops: Pulled from the past, eyebeam-firing teenage X-Man Scott Summers was surprised to find that his future self had become a radical mutant activist, alienating his friends in the pursuit of mutant equality.

Marvel Girl: Time-displaced telekinetic Jean Grey quickly learned to tap the powers that her future self had possessed, including telepathy. But her young mind still needs to exercise restraint, or she may meet the same fate.