Read more about Cardiac at: Wikipedia

Official Site: Marvel Entertainment

Cardiac (Elias Wirtham) is a fictional character comic book vigilante hero appearing in publications from Marvel Comics. Created by writer David Michelinie and penciller Erik Larsen, he first appeared in The Amazing Spider-Man #342 (December 1990).

Elias Wirtham is a doctor driven by his brother's death to researching life-saving medical practices. His brother Joshua's death was the result of corporate greed, who had a cure for his condition ready, but did not distribute the medicine due to it not being a "profitable" time for them, hence his motivation against corporations. As a part of his research, Elias replaces his heart with a beta-particle reactor, which supplies energy throughout his body, in addition to a vibranium weave mesh under his skin. This energy, channeled through his muscles, increases his speed, agility, and reflexes, and can also be fired through his fists or the power staff he wields. He adopts the moniker "Cardiac" in reference to the source of his power.

Wirtham is a physician and surgeon, and the owner and administrator of a biological research firm.

Cardiac becomes a vigilante, believing himself an instrument of justice. He first encountered Spider-Man while raiding Sapridyne Chemicals, a company owned by Justin Hammer which possessed chemicals vital for the production of cocaine. Cardiac next destroys the house and property of Albert Brukner, a corrupt S & L broker, and then attacked a subsidiary of Stane International that manufactured dangerous electronic dolls for children. He invaded Stane International itself to destroy designs for a sonic missile that produced the effects of nerve gas.

Cardiac has not been a contender in any CBUB matches.