New Mutants Magik: The younger sister of Colossus, Illyana came to live with her brother after being kidnapped by Arcade. Soon after, the sorcerer Belasco captured her and held her in the pocket dimension Limbo. Belasco turned a portion of her soul demonic in nature. Belasco's spell gave Illyana considerable magical power, and she nearly killed him, but rather than give in to her demonic side she drove him from Limbo, becoming its new leader. She later joined the New Mutants as Magik.
Warlock: Warlock is an alien being from a world where the sentient life forms are a "techno-organic" life that resembles circuitry and machinery. The son of the planet's ruler and most powerful being, Warlock was fearful of being slain during a traditional rite of passage where the son combats the father. He instead fled to Earth, finding himself drawn to the Shi'ar technology at Professor Charles Xavier's mansion. Warlock's personality resembled that of a young child but he still proved to be a valuable member of the New Mutants and a worthy ally of the X-Men.