Adric, Mathematical Genius is a rare Legendary Creature — Human Artificer card from Doctor Who (WHO), collector number 942. Current market price: — (foil $4.47), TCGplayer market prices via Scryfall.
{2}{U}, {T}: Copy target activated or triggered ability you control. You may choose new targets for the copy. Ultimate Sacrifice — {1}{U}, Sacrifice Adric: Counter target activated or triggered ability. Doctor's companion (You can have two commanders if the other is the Doctor.)