The mutant known only as Prism is a member of the superhuman assassins the Marauders who were apparently all killed during a demonic invasion of New York City but subsequently cloned from samples of their DNA by their founder, geneticist Mister Sinister. Prism possesses a body made of an unknown multi-faceted crystalline substance that can be shattered if enough force is applied. This limitation may explain why Prism has accompanied the Marauders on only two known occasions - first during the massacre of the underground mutant community the Morlocks, and second when sent to recover Sinister's servant Threnody and opposed by the X-Men. Recently, Prism was killed and eaten by Predator X.