and fainting from the stress of becoming human again. Although initially weakened, Jack quickly regained control of his powers and assessed the situation. Using his powers, Jack destroyed the zombies and saved Harper's life after she became infected with the zombie virus. Afterwards, the two shared a romantic kiss. Jack Hart was absent for some time, but eventually returned to a more public life when he literally crashed into the apartment of Jennifer Walters (She-Hulk), and found that he was now able to eat, drink, and sleep normally for the first time since his accident. As Jack regained his powers, he and Jen became romantically involved, Jack assisting Jen in the Reckoning War conflict as they aided the Fantastic Four. Powers and abilities Jack Hart's superhuman powers are as a result of the mutagenic effect of his father's "Zero Fluid", combined with the alien genes from his Contraxian mother. He has superhuman stamina and durability. Jack of Hearts also has the ability to generate "zero energy" within his body and project it as concussive force or intense heat or as a propellant to fly. Jack is sometimes unable to exert complete control over his energies, however. For a short time after restarting Contraxia's sun, he uncontrollably radiated enough heat to melt one of Contraxia's polar ice caps. He can survive unprotected in space. Jack of Hearts's brain has incorporated the artificial intelligence of a computerized device called the Scanalyzer, enabling him to think with the speed of a computer and store and retrieve information with a computer-like capacity and efficiency. The left half of Jack of Hearts' body has turned purplish-black from direct exposure to "Zero Fluid". Jack of Hearts' left eye has an opaque white membrane covering the entire pupil. These mutations were not solely caused by exposure to the "Zero Fluid", but are actually aspects of his half-Contraxian genetics brought to the fore, as Contraxians naturally have such appearances. Jack originally wore a suit of armor crafted in medieval Europe. His second suit of armor was designed by Torval, and made from alien materials designed to contain the zero energy his body generates. His original suit of armor was later restored and upgraded by Moondragon after Jack was rescued from space by the Avengers and thus leading to his connection with the team. Jack is a fair hand-to-hand combatant, has had some S.H.I.E.L.D. combat training, and is a