The X-Men #63

Magneto stands triumphant at center, cape billowing dramatically behind him, while several defeated X-Men lie sprawled at his feet — with a mysterious, glowing pod-like device looming large beside him, a blue silhouette visible within its metallic frame. The cover title "The Triumph of Magneto!" says it all, promising a December 1969 issue where the Master of Magnetism holds the upper hand in spectacular fashion. Neal Adams and Tom Palmer bring an urgent, dynamic energy to this installment of "War in the World Below!" that makes it easy to see why this era of X-Men storytelling still resonates.