Legolas's Quick Reflexes is a rare Instant card from Tales of Middle-earth Commander (LTC), collector number 493. Current market price: $52.79 (foil $47.14), TCGplayer market prices via Scryfall.
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Untap target creature. Until end of turn, it gains reach, hexproof, and "Whenever this creature becomes tapped, it deals damage equal to its power to up to one target creature."