Written by Jerry Coleman Bill Finger & Otto Binder Art by Curt Swan Wayne Boring Al Plastino & Kurt Schaffenberger Cover by Swan & George Klein The second Showcase spotlighting the Silver Age exploits of Superman features ACTION COMICS 258-275 & SUPERMAN 134-145! The Man of Steel faces off against a wide array of threats from the impish Mr Mxyzptlk to the deadly alien Brainiac to the utterly incomprehensible Bizarro