Three years after the First Merioss Crusade, in 923 HE, Kezgihr founded the group Grisapho Vu'tira - the first of the Blood Cults of Kezgihr. The modus operandi of Grisapho Vu'tira was organizing vampires and using their collective might to take out foes like the Night Vigil, Radiant Cross, and elite vampire hunting units out of Smizerak. Because of their enemy's skill in fighting vampires, the cult eventually became less militant and more clandestine in their activities.
Grisapho Vu'tira are Abyssal words that loosely translate to "Last Sin". The cult's founder, a Drachlaz Lord named Kezgihr, would go on to become the first vampire deity.
Taking advantage of strife, misery, and defeat brought on by the Core Offensive, agents of this organization helped set-up the Blood Cult cell As'lith Zybis.