Powers: Body Armor: RM, Flight: IN/ SH-Z in space, Zero Blasts: AM, Total Recall, Resistance to Heat: Class 1000
Talents: Astro-Navigation, Pilot
Jack Hart was the son of Phillip Hart, a brilliant scientist who developed a revolutionary, extremely efficient liquid fuel called “Zero Fluid,” and a humanoid alien woman of the Contraxian race. The alien was one of many scientists dispatched to try to discover an energy source to resuscitate the dwindling nuclear processes of the Contraxian sun. Learning of Hart’s experiments, the alien assumed a totally human form to keep Hart under surveillance. Hart and the alien eventually met, married, and produced a son they named Jack. The alien woman, “Marie,” died in a car accident when the boy was a child. Neither her husband nor child ever learned of her extraterrestrial origin.
When Jack was a teenager, Phillip Hart perfected his “Zero Fluid” and decided to donate the fuel to all the free countries of the world. Hart was then contacted by agents of the criminal Corporation who wanted to market the Zero Fluid. Refusing to deal with them, Phillip Hart was murdered by Corporation agents before the eyes of his son.
Managing to escape, Jack Hart took refuge in his father’s basement laboratory Corporation agents broke in minutes later, and their laser-cannon sheared through the laboratory door, striking the vat of Zero Fluid. Doused by the powerful, corrosive fuel, Hart underwent a mutagenic change and began to glow. With an uncontrollable burst of energy generated by his entire body, Hart killed his father’s murderers. Vowing vengeance on the entire Corporation, Hart fashioned a costume for himself, plundering his father’s collection of armament. The armor somehow interacted with the final stage of mutation and provided a moderator that contained and controlled the release of his body’s energy.
Calling himself Jack of Hearts as a tribute to his father’s passion for playing cards, he embarked on a mission of vengeance. Initially his quest for vengeance on the Corporation was blind and intolerant, leading him into conflict with such innocents as the Sons of the Tiger and the Hulk. Later he aided Iron Man in freeing Stark International from takeover by Mordecai Midas, and was taken under Iron Man’s tutelage for a brief time. When his energy powers began to increase uncontrollably, he placed himself into SHIELD custody. There he met a former classmate of his, Marcy Kane, who was also actually a Contraxian. She revealed to him his mother’s extraterrestrial origin and convinced him to accompany her back to Contraxia to try to save their sun. On Contraxia, a cult calling themselves the Survivalists captured Jack of Hearts to force him to do what he was intending to do anyway. He was flown in a starship to Contraxia’s sun and there vaporized the craft before sending the energies of his body into the sun. In some as yet unknown manner, he apparently restored the vast quantities of hydrogen necessary to sustain the nuclear reactions of the sun, and added an undisclosed number of years to the sun’s life. Then, still radiating great energy, he returned to Contraxia, his vast heat melting the polar icecaps, in order to say farewell to his girlfriend and to lecture the Contraxians about morality. He then flew off into outer space, realizing that he could no longer live among organic beings with his vast energies emanating out of control.