Mark Sim was one of the many Nuhumans who manifested his powers due to the detonation of the Terrigen Bomb after the fall of the Inhuman city of Attilan above New York City.

One day, when he was taking the subway he witnessed Sun Girl's fight with the Evolutionaries to save the Morlocks, and helped her until they are both saved by the members of the New Warriors, Justice and Speedball. Together they saved Nova, Hummingbird, Kaine, and Water Snake from the Evolutionaries in Wundagore Mountain and stopped the High Evolutionary from detonating his bomb.[1]


Energy Absorption: Mark can absorb most types of energy directed toward him as if he was "eating" it, and store inside his body. The nature of his powers makes it difficult to damage him with energy-based attacks, while also enabling him to work well with any energy-using teammates.[2]

  • Energy Blasts: He can re-channel the absorbed energy through his body and shoot it from his mouth as powerful energy blasts.[2]
  • Transformation: If Mark absorbs high amounts of energy he became engulfed by it and transform temporarily into an enormous dragon-bull like creature, increasing his already impressive physical build.[3]
    • Physical Augmentation: His monster form strengthens Haechi even further granting him augmented strength as well as affording him a measure of invulnerability.[3]

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