Feed the Cauldron is a common Instant card from Wilds of Eldraine (WOE), collector number 91. Current market price: $0.22 (foil $0.14), TCGplayer market prices via Scryfall.
Destroy target creature with mana value 3 or less. If it's your turn, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.")