Drown in the Loch is a uncommon Instant card from Throne of Eldraine (ELD), collector number 188. Current market price: $1.06 (foil $1.42), TCGplayer market prices via Scryfall.
Choose one — • Counter target spell with mana value less than or equal to the number of cards in its controller's graveyard. • Destroy target creature with mana value less than or equal to the number of cards in its controller's graveyard.