Question: What is the name of this fictional supervillain appearing in American comic books published by DC Comics that Clark Kent fights in New York in the novel "It's Superman!?"
Sentence (from "It's Superman!"): The premise tells the tale of Clark Kent's beginnings into becoming Superman, set in the 1930s, where Clark befriends a wrongly convicted photographer named Willi Berg, and is then taken from Kansas to Hollywood and finally in New York where he meets Lois Lane, fights Lex Luthor, as he debuts in his superhero persona.
Relevant evidence: Yes