Action Comics #242 Facsimile (2025)

THE FIRST APPEARANCE OF BRAINIAC! From out of the cold depths of space, a malevolent master of super-science has turned his technological terror toward Earth, shrinking the world’s major cities and taking them as his own! When Superman infiltrates the alien’s ship, what he discovers will change the Man of Steel’s life forever! Witness the first appearance of Brainiac--and the bottled city of Kandor!