Source: wallinsider.com

5. Jean Grey

Omega Level Mutant

Keep in mind that we're talking about Jean on her own, not necessarily Phoenix Jean. Phoenix Jean is arguably the most powerful character on this list, but not because of her Mutant powers.

Plus, thanks to retcons, the Jean who was Phoenix was maybe not Jean at all? Thanks, John Byrne! That sentence felt weird to type. But regular ol' Jean is still pretty powerful in her own right. She's maaaaybe the most powerful telepath in the Marvel Universe, depending on which BS metric you're judging and what the writer needs to be true for his/her story to work. The other thing keeping Jean from being number one on this list is how often she dies.

She's died like four times, solidly. And come back from the dead twice. She's like Double Jesus. Jean has advanced telepathy and telekinesis, and a lot of astral and mind powers. Look, the lady's Marvel Wiki page lists one of her powers as Cosmic Pyrokinesis. That sounds pretty scary.

Power Level: Do not get in her way, unless this is the one of the 32 weeks out of the year when she's dead.