Green Lantern, including Ganthet, into an Alpha. This was apparently at the suggestion of the robed figure holding Ion and Parallax, who told him that Ganthet held the knowledge to destroy him permanently, after Henshaw's attempts to provoke Nekron into killing him during the Blackest Night failed because he lacked a heart to attract Nekron's interest. By threatening to make the Alpha Lanterns kill themselves if Ganthet does not cooperate, Henshaw forces Ganthet to work on reversing the augments that turned the Green Lanterns into Alpha Lanterns, hoping that he can use the resulting information to restore his original mortal body. Henshaw is seemingly killed when his lifeforce was finally separated from his nearly indestructible body by the combined full powered blasts of several Lanterns and Ganthet, and appeared on the mental plane of Alpha-Lantern Boodikka in an attempt to take her bio-mechanical body over, where both beings were their original, un-powered selves. Her essence, gifted with her innate, formidable combat skills, engaged his in one-on-one combat, and she quickly overpowered and killed his astral form. Afterwards, however, Ganthet noted immediately that there was something different about her. Boodikka claims this is because Ganthet's newly discovered emotions allowed him to see her as she is (Boodikka's true self, now in control of her body again), not by what she is (an Alpha Lantern). In the Reign of Doomsday crossover, Boodikka is attacked by Doomsday while investigating the remains of New Krypton, and Henshaw is revealed to still be alive inside her, forming a new body out of her internal circuitry to fight Doomsday while Batman and Supergirl were trying to repair Boodikka. Henshaw uses his abilities to take control of the JLA Watchtower and uses the satellite's defenses in an attempt to kill Doomsday, reasoning that if he could manage to destroy the creature that killed Superman, it would prove once and for all that he is superior to Superman. After the creature is violently dismembered by Henshaw, it somehow absorbs the nanotechnology from Henshaw's body and repairs itself, becoming a new being dubbed Cyborg Doomsday. Cyborg Doomsday somehow manages to negate Henshaw's ability to repair himself, which leads Henshaw to believe that he might finally meet his demise. Supergirl bursts onto the scene and attempts to stop Doomsday herself, but Henshaw fires an energy blast at her, stating that he would not allow her to defeat the creature that