Stubborn Denial is a uncommon Instant card from Khans of Tarkir (KTK), collector number 56. Current market price: $4.43 (foil $22.65), TCGplayer market prices via Scryfall.
Counter target noncreature spell unless its controller pays {1}. Ferocious — If you control a creature with power 4 or greater, counter that spell instead.