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Superman would be sent into the Phantom Zone, and Batman and Earth's other heroes would attempt to continue to fix the world, one of those tasks being freeing Brainiac's trapped cities. With Brainiac's intelligence and powers, Brainiac-Superman would mind-control Batman to be his mindless servant as he set out to fix his former regime. In fact, he really is the ultimate personification of megalomania and power hunger, as he is seeing nothing more or less than conquering the universe and destroying Superman and his own allies, or even anything else. Now, the Collector of Worlds comes to Earth to finish his accumulation of Krypton-and discovers a new world worthy of his collection. He has a cybernetic prosthetics and a protective armor warping his body, with little purple tubes around his head. Obsessed with establishing his superiority, Brainiac captured Krypton’s greatest cities, then eradicated what remained…or so he thought. Because of his success, Brainiac believes that he exterminated the Kryptonian race, and thus is unaware of Kal-El and Kara's survival by being sent to Earth. Many years ago, Brainiac caused the destruction of the planet Krypton. He is a ruthless and megalomaniacal alien super-computer being, intent on conquering the entire universe, destroying Superman himself, and enslaving all life forms he encounters. Kara Zor-El, who was a teenager during the attack, was able to remember the invasion that only she and her baby cousin Kal were able to escape from. Despite being just a megalomaniac, Brainiac is also an extremely powerful, malevolent, egotistical and aggressive individual, able to outsmart his enemies with him being a super-computer creature.