When the vampire Lord Zir makes his presence known in the Season of Blood in Diablo 4, players are thrust into a vampiric plague just as they contend with the forces of Lilith. Thanks to vampire hunter Erys, the Wanderer has an expert to consult when it comes to vampiric affairs. However, as players become infected with vampirism without undergoing transformation, their characters remain Sanctuary's best defense against this new threat.