Doctor Alchemy possesses the Philosopher's Stone, which once belonged to Merlin. By pressing the stone in various points, he has the ability to transmute any substance into any other substance (e.g., steel into rubber, or oxygen into carbon monoxide) and also possesses the power to transform the molecular structure of the human body, having once turned the Flash into a being of water vapor.[1][2] Desmond can also control the Stone from a distance via telekinesis. He can also restore abilities to other people from different timelines or worlds.