'Sacred incantation of Mohg, Lord of Blood. Thrust arm into the body of the Formless Mother, then scatter the bloodflame to set the area ablaze. This incantation can be cast while in motion. The mother bestowed three gifts upon Mohg, her son. The first was the bloodflame.' The Formless Mother is the outer god of blood, a presence neither seen nor named in any cinematic, addressed only by Mohg the Omen. Of all the outer gods of the canon, the Greater Will, the Frenzied Flame's Three Fingers, the God of Rot, the Fell God of fire, the Dark Moon, she is the one whose mark on the world is the most intimate. Mohg's bloodflame curse is hers. His three Bloodflame incantations are her three gifts. Her body is, the lore implies, available to be pierced by anyone who knows where to plunge.

'Unique Skill: Bloodboon Ritual. Raise the sacred spear and pierce the body of the Formless Mother. Stab up to three times, creating explosions of blood with each.' Mohg pierces her with his Sacred Spear because the gesture is a covenant. Her formlessness is what the canon literally means : she is everywhere there is enough blood to call her, and Mohg's whole insurrection, kidnapping Miquella, raising a dynasty in the Mohgwyn Palace under the Eternal City, is an attempt to give her a son who will rule the surface in her name. He fails. Miquella has already escaped his cocoon. The Formless Mother does not appear at his death, but the spear in the throne room remains soaked, and her name is the last one any Bloody Finger speaks before they vanish.