Venom or Eddie Brocker

Eddie: Eddie Brock is the former-villain-turned-anti-hero Venom. A reporter whose fall from grace was unwittingly caused by the actions of Spider-Man, Brock would go to Our Lady of Saints Church to ask God forgiveness before attempting suicide. However, a symbiote that had been earlier discarded there by Spider-Man sensed his anger and merged with Eddie, combining their shared scorn to become one of Spider-Man's deadliest foes.

Venom: The symbiote that would be later known as the Venom Symbiote was spawned at some point during the reign of the dark elder god Knull. Much of the symbiote's history prior to its arrival on Battleworld is unclear, in part due to its memories having been erased, modified, or otherwise altered numerous times. According to some sources (including itself), the symbiote was the 998th of its lineage, while others purport it to be the first symbiote created by Knull.