By introducing positive feedback into the seithr contained within the Grimoire, the "power" contained therein can be safely held within one's body. In XBlaze – Code: Embryo it was said that only Tōya Kagari is capable of this and, when in this state, will not absorb the life force of those around him. In XBlaze – Lost: Memories this ability was also used by "Me" (Original Grimoire), Freaks (New Testament Grimoire), and Es (Phantom Grimoire).