S'ym is a fictional supervillain in the Marvel Comics Universe, a demon of Limbo who served as a frequent enemy and sometimes supporting character in The Uncanny X-Men and The New Mutants. He was created as an homage to independent cartoonist Dave Sim's character Cerebus the Aardvark.

Read more about S'ym:  Inspiration, Fictional Character Biography, Powers and Abilities

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S'ym - Powers and Abilities
... S'ym possesses great superhuman strength ... S'ym, now a techno-organic being himself, can repair himself and reform from a single molecule, should he be destroyed ... Also due to his techno-organic state, S'ym can also infect other objects and feed off its life energies, and/or turn them into techno-organic beings as well ...