Katelyn Pryde (Earth-2326)

"Okay, no one tell Logan or Hank, but I'm definitely the strongest X-Man we've got."

- Silhouette

Kitty Pryde is a young mutant who was recruited by Charles Xavier and Erik Lehnsherr to join the X-Men. Her powers of density shifting allow her to either phase completely through solid objects or become so dense that nothing can move her.

Trivia

 * Although they have only met a couple of times, Kitty considers Peyton Parker her best friend.