Carnage

Carnage is the most dangerous symbiote villain in the Marvel Universe — the result of serial killer Cletus Kasady bonding with the offspring of the Venom symbiote while in prison. Unlike Venom, who maintains a twisted moral code, Carnage exists purely for chaos and killing. The bond between Kasady's sociopathic mind and the symbiote created a being more powerful and unhinged than either alone, making Carnage a villain that even Venom has teamed with Spider-Man to stop.

Carnage Comics