In the post- Crisis On Infinite Earths continuity, Lex Luthor cloned Superman more than once. While his most successful venture combined his own DNA with Superman’s to create Conner Kent, the first attempt was a failure. In The Man of Steel limited series, Lex Luthor created a clone of Superman that crystallized over time.

Lois, however, knows Superman better than anybody, and that’s because she gets to see him off the clock as Clark Kent, whose claim to journalistic fame is the “exclusive” interviews he grants himself ...