DC villains campaign
Anthony Ivo grew up with a crippling fear of death. The thought of his life ending was so great that he even avoided his own mother’s funeral. For Ivo, avoiding death became his life’s obsession. Ivo took to studying cybernetics and soon became an employee of the criminal organization Locus, where he gained new insights through the dissection of one of the Appellaxians. He used this knowledge to build Amazo; Pre-Crisis on Infinite Earths, his desire to perfect Amazo was so great he held little qualms as to kill his own father and a complete stranger in the benefit of the mental and biological templates he needed to create the android. In any case, both Pre- and Post-Crisis, he had Amazo attack the JLA1 in the hope of using their powers to imbue himself with immortality, though Pre-Crisis he tried to use Amazo to steal long-lived creatures, though he captured the JLA on the way in gas filled cylinders, save Batman and Superman, stole their powers and placed them in Amazo, and made a potion that would allow him to live for 500 years, though he can make more. He then told Amazo to remove their memories However Green Lantern recharges his ring, having used the yellowish-greenish gas he had inhaled, then exhaled to protect him from the ring, and draws the powers out of Amazo and back to their rightful owners, also giving them back their memories
Years later, Ivo discovered an immortality potion and drank it, but found that the immortality brought with it horrible disfigurement that made his skin scaly.2 He blamed this on the JLA and drifted further into insanity as he attacked the League on numerous occasions. Ivo built duplicates of himself to keep him company. These duplicates were repulsed by the insanity of their creator and locked him away, then carried out his dreams of revenge by attacking the new Justice Leaguers (Vibe, Gypsy, Steel and Vixen) and killing Vibe.
Professor Ivo’s disfiguring experience was not enough to keep him from the temptation of the immortality serum and he once again brought about his own deformity by drinking it. As both Ice and the Green Lantern rings were gone, Ivo apparently consigned himself to his own horrible fate and was later imprisoned. Later, he would form a partnership of sorts with fellow mad scientist T.O. Morrow, constructing the powerful mechanized superheroine Tomorrow Woman as a trap to mindwipe the JLA with an electromagnetic pulse. While both men bickered and bantered all the while, they formed a friendship or camaraderie of sorts, even drinking a toast when he was imprisoned by the JLA. Still, T.O. Morrow was deeply annoyed at Professor Ivo’s boasts about Amazo, and to spite him, snitched on the JLA when Professor Ivo planned to use the android to escape. Still, they remained comrades of some sort and still delight in spiting and belitting each other