The other potion that could be made from ground-up elephant tusks was a Dark potion: the Alive Inferi potion. A person who drank this potion would become as stupid as a dog, and would become completely obedient to the person to whom the potion was keyed. The alive inferi would ignore pain and injuries, while relentlessly carrying out his or her master’s orders. Whenever the alive inferi died whilst obeying his/her owner’s commands, he or she immediately became an inferi, still in thrall to his owner.