Lex Luthor is the archenemy of Superman.
As an adult, Lex Luthor's driving ambitions are to kill Superman and rule Earth, a stepping stone to dominating the universe, believing a man of his intellect deserves such power
 Luthor's daughter Lena was the avatar of The Tech, the remnant cyberware of Metropolis after Brainiac 13's advancing the city to a futuristic state was undone

