I was nine or ten years old when I first saw Cardiac in Amazing Spider-Man #344 which at the time was important because it was also the first appearance of Cletus Kasady who would later go on to become Carnage. While Cardiac has appeared sporadically it’s nice to see Marvel hasn't forgot his history with Spider-Man or should I say Peter Parker’s Spider-Man. The battle between Peter and Dr. Octopus for control of Spider-Man’s body continues throughout the Superior Spider-Man series.
Marvel Comics First Look: Superior Spider-Man #6AU
Marvel Comics First Look: Age Of Ultron #6
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