As the original host of the Venom symbiote, Eddie Brock was one of Spider-Man's greatest enemies. That changed when the symbiote was forcefully removed from Brock's body. The leftover Venom particles in his bloodstream were transformed, bonding to his white blood cells, becoming a symbiote unlike any before. Born again as Anti-Venom, he has all the strengths of a symbiote with none of the weaknesses, plus the ability to cure any disease or poison. As to whether Brock's hatred of Spider-Man has changed as well... that remains to be seen.
For information regarding Heroes' Leveling costs and requirements, refer to this page. Information above may only be accurate to the Facebook Version. Actions, Effects, and Stats may or may not differ from the Mobile Version as majority of the Heroes are still on their older Patch versions. Stats are based on Agent level 2. Action Stats are based on a hero without Iso-8, Empowered Iso-8, and Augmented Iso-8 socketed. Total Damage/Healing is based on Agent Level 300. Please do not change the data into the Mobile Version with the exception of adding the Mobile Version's Cost and Requirements.