The Congregation of Necronominus is a sinister faction within Mythic Legions, led by Necronominus, one of Mythoss horsemen and the dark god of death. The faction consists of an army of undead zombie, skeletal, and spectral warriors and magic users, each dedicated to spreading death and decay across Mythoss. Their appearance is characterized by bone color and undead motifs, rusted armor and tattered robes with necromantic symbols, emphasizing their connection to the macabre. The lore surrounding the Congregation of Necronominus is steeped in dark arts and ancient rituals, with each member playing a crucial role in their master's grand design to engulf Mythoss in eternal darkness.