Malraux Sorotai was created on the planet Necropolis by the Sith Lord Ragnaros Demonia, with the intentions of creating a new kind of Jedi using parts from deceased Jedi masters. He was the first of few that was anywhere near a success. However, the experiment was far from a success, and caused major disabilities to arise. His lungs did not develop fully and he was forced to wear a breathing apparatus. The mask that he wears contains various sensors that change his inhalation rate to compensate with his physical exertion. He also wears a special suit that monitors his vital signs and injects bacta and other medical antidotes into him. He is, in non-technical language, invulnerable to poisoning.