An alchemist on the planet Myar in the 30th century, Hart Druiter gave himself the power to adapt any power needed to defeat an opponent. He used his talents to work as a mercenary and was hired by the Khunds to infiltrate the Legion of Super-Heroes but was demasked by new recruit Karate Kid. He later joined the Legion of Super-Villains, even leading the team during its most ambitious scheme that resulted in the death of Karate Kid. He was executed by Queen Projectra of Orando who snapped his neck with her bare hands and left his body to rot in the streets.