Shadowcat
Kathryn 'Kitty' Pryde, one-time youngest member of the legendary mutant team known as the X-Men. Her power was known as Corporal Intangability, which would let her 'phase' her molecules through any solid object, effectively passing through it like a ghost. Formerly known by the code names 'Sprite' and 'Ariel,' she later went on to be a founding member of Britain's premiere superhero team, Excalibur.
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