Where is the body of csol biochemical witchcraft?

Like a cursed doll. This is necessary for a witch's body. If it falls, it will ... go to hell. Legend has it that witchcraft resin is immortal, but the curse doll dies as soon as it falls (so when witchcraft resin is killed, the doll always falls, I don't know if you have found it), but CSOL can't give him immortality, right? Therefore, it is stipulated that blood and curse dolls can add blood to people or curse them.