Origin of Superman early issues of the series, it was unclear if the story was intended to be the new origin of the mainstream Superman or the beginnings of a new universe, similar to Marvel's Ultimate line. DC later confirmed that "Birthright" was the new official origin of Superman, and it was embedded into the Superman fiction in "Superman" (vol. 2) #200. Krypton was redesigned again in "Birthright", portrayed as a society that used its advanced science and technology to make its planet into a paradise. Clark Kent respected his alien heritage and designed his Superman costume based on images of Kryptonian culture
Superman: Last Stand on Krypton Zod. Zod questions Luthor and finds out Superman is on the planet and Luthor agrees to help him. Zod's robots descend upon the New Kryptonian sanctuary, where the colonists are infected with Kryptonium, a.k.a. the green death. The animals and people in the colony die horribly. Superman pleads with Zod to avoid war, but Zod declines, and hands him over to Luthor. Luthor infects Superman with forms of the green death, which turns him into a brutish being in the process. Superman is thus rendered animalistic and unintelligible, but his motives are still pure. He takes Lois to his father,