Warlock is a member of the alien Technarchy, a race of mechanical organisms that survive by infecting living creatures with the "techno-organic" transmode virus, before draining the life energy ("lifeglow") of the infected organism. Unlike others of his race, Warlock possesses a distinctive degree of compassion, and as a result was dubbed a mutant in spirit; It was later discovered that he is in fact a mutant of his race even though he has yet to display any abilities beyond those natural to the Technarch. He is the son of the Technarch ruler who has battled the New Mutants and the X-Men. Warlock served as a member of the original New Mutants for much of that group's existence, and became the best friend of his teammate Cypher (Doug Ramsey). Because of Warlock's compassion, he refuses to drain other sentient creatures of their "lifeglow". Because of the difficulty in determining whether or not a creature is sentient, New Mutants leader Danielle Moonstar ordered him not to drain any large creatures without permission; however, Warlock often drains such creatures at his discretion when Danielle is not present. During many adventures, Warlock would team up with Doug, keeping his teammate safe. Though the two often worked together to confront enemies, Warlock's constant protection only served to lessen Doug's self-esteem. His shape-shifting abilities led him into a confrontation with the Impossible Man. This soon snowballed into an Earth-threatening incident as both entities tried to outdo each other. This only ended when Warlock showcased his ability to change color, something which the Impossible Man could not do. Doug's death at the hands of the Ani-Mator devastated Warlock, leading him to go so far as to steal Doug's body. With the help of the rest of the New Mutants, he came to terms with Doug's death (and returned his friend's body to the rightful place). He continued to serve with the team, which led to a second trip to Asgard. Warlock and two new friends Boom Boom and Hrimhari became separated from the rest. They traveled to Asgard together. They were "rescued" from imprisonment by the children of Volstagg who sent them to talk with the mighty being Tiwaz. The trio eventually joined with a force to rescue the ruler of Asgard from an assassination attempt.

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