Lex Luthor made him to kill Superman, when he fought superman and the rest of the league he absorbed all their powers. But little did he know that with their powers came their weaknesses.So the League used their own weaknesses against him.After he lost he left the planet in search for a way to become stronger than everything and amassed the knowledge of everything in the universe but longed for a purpose.So on his way back to earth for an answer from his creator(Lex Luthor) he moved the Green lantern Core's home planet to another dimension enraging the entire Green lantern Core. Thinking that he destroyed their beloved planet they took action in preventing him from destroying yet another planet(Earth).The entire green lantern core put up a giant shield in a attempt to stop him but it was useless and he went right through it causing a collision that left the GLC unconscious floating in space.He continued his route towards earth and was intercepted by superman and the rest of the Justice league which he pummeled without a fight scene. When he reached lex luthor he asked him what his true purpose was and why he was created threatening to destroy the world if he did not answer.And lex explained to him that his purpose was to see everything end.For him to see the end of evolution.
While the Green Lantern core came to try and make a last ditch effort to stop the Android with a combined blast from their rings that would take out half the planet Dr. Faith stepped in to delay them but no even he can stand up to the entire GLC so he stepped providing the Android Amazo time to make his decision to spare the planet.But the GLC was unphased by his decision and were still enraged by the destruction of their home planet and were fixed on getting revenge until the Android explained that he did not destroy the planet he simply moved it to another dimension.So Green Lantern asked if he could move it back and the Android did so. Dr. Fate/Faith then took custody of the Android(not technically speaking) and promised to help him serve his purpose.
-Whew The end