Sneak Attack is a mythic Enchantment card from Wilds of Eldraine: Enchanting Tales (WOT), collector number 50. Current market price: $9.82 (foil $14.53), TCGplayer market prices via Scryfall.
{R}: You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice the creature at the beginning of the next end step.