Superman #249

In "The Challenge of Terra-Man," Superman faces a baffling threat when a stagecoach materializes in Metropolis, bringing with it a stranger straight out of a Western—Terra-Man—armed with advanced technology that defies his origins. As the Man of Steel confronts this enigmatic foe, he must also contend with the rare and mysterious birth-spells, a Kryptonian condition that flares every six years on his Kryptonian birthday. Written by Cary Bates and brought to life with Curt Swan’s iconic art and Murphy Anderson’s precise inks, this 1972 classic features a striking cover by Neal Adams.