Ojutai, Soul of Winter is a rare Legendary Creature — Dragon card from Fate Reforged Promos (PFRF), collector number 156s. Current market price: — (foil $3.06), TCGplayer market prices via Scryfall.
Flying, vigilance Whenever a Dragon you control attacks, tap target nonland permanent an opponent controls. That permanent doesn't untap during its controller's next untap step.