Venom, or Eddie Brock, is a Symbiote life form in the Marvel Comics universe. The Venom creature gives its host enhanced abilities such as strength, sight, and more. A Symbiote finds the system of a human and gets into the hosts mind and makes the host an increasingly aggrivated person who performs often lethal and generally destructive actions. In effect, when the Venom Symbiote bonds with a human to form a supervillain, that new dual-life form itself is also often called Venom. Its second host Eddie Brock, after bonding with the Symbiote to become the first Venom, is one of Spider-Man's greatest foes. Spider-Man was the first host it merged with before its evil motives were clear. After Spider-Man's body rejected it, the symbiote went on to merge with other hosts (starting with the most famous Venom: Eddie Brock) and so began its reign as the villain known as Venom. Comics journalist and historian Mike Conroy writes of the character: "What started out as a replacement costume for Spider-Man turned into one of the Marvel web-slinger's greatest enemies."