Tough Cookie is a uncommon Artifact Creature — Food Golem card from Wilds of Eldraine (WOE), collector number 193. Current market price: $0.33 (foil $0.30), TCGplayer market prices via Scryfall.
When this creature enters, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") {2}{G}: Until end of turn, target noncreature artifact you control becomes a 4/4 artifact creature. {2}, {T}, Sacrifice this creature: You gain 3 life.