ACTION COMICS (1938) #731

It’s the riotous return of the villain called Cauldron! Originally, he was Project Cadmus’ first foray into law enforcement, created to prove that DNAliens were not inherently evil. But someone’s stolen the development data and programmed a version with his own sinister agenda! Will Cauldron version 2.0 have more humanity than its cyber-predecessor? « …Fire Burn and Cauldron Bubble ! » (A new Cauldron (Nikolai Karpov) vs. Superman) « 1997 12 »–Triangle in upper left hand corner.