The Contract of San Venganza is a powerful demonic weapon. The Contract is the result of the entire population of San Venganza selling their souls to the devil, thus giving the Contract an enormous power. Not wanting Mephisto to become nearly all-powerful, Carter Slade hid the Contract for centuries. Johnny Blaze, the new Ghost Rider, was forced by the demon Blackheart to give him the Contract in exchange of Roxanne Simpson's life. Blackheart used the power of the Contract to become Legion, a demon powerful enough to overthrone even Mephisto, but he was killed by Ghost Rider immediately after, and the Contract was destroyed.