Temporal Mastery is a mythic Sorcery card from Innistrad Remastered (INR), collector number 307. Current market price: $7.80 (foil $8.70), TCGplayer market prices via Scryfall.
Take an extra turn after this one. Exile Temporal Mastery. Miracle {1}{U} (You may cast this card for its miracle cost when you draw it if it's the first card you drew this turn.)