During the " Blackest Night " storyline, Lex Luthor's father Lionel Luthor was featured where it was revealed that he died of an allergic reaction to his medicine during Clark Kent's days as Superboy. He is reanimated as a member of the Black Lantern Corps where he is amongst its members that try to attack Lex Luthor. After the events of "Blackest Night'", Luthor went on to build a gynoid version of Lois Lane using Brainiac technology. His primary purpose for creating her was to have a companion who would voice honest opinions and provide an extra voice of reason to counsel him on his obsessive quest for the Black Lantern energy. Luthor also had a pseudo-romantic relationship with the "Loisbot", and regularly slept with it.