Heirs to the Blood was the final official card set for the collectible card game Vampire: The Eternal Struggle. Published in 2010, it focused on bloodlines, with further support for several Sabbat antitribu clans and bloodlines that had been neglected by the game in recent sets. Additionally, it introduced new systems for infernalism, including the infernal pseudo-Disciplines of Maleficia and Striga (adapted from Vampire: The Dark Ages). The set's four preconstructed decks each combined two thematically related clans or bloodlines: Lasombra with Kiasyd, Nosferatu with Samedi, Tremere with Gargoyles, and Ventrue antitribu with Salubri antitribu.