Lucky the Pizza Dog is a rare Legendary Creature — Dog card from Marvel Super Heroes Commander (MSC), collector number 726. Current market price: $0.62 (foil $4.45), TCGplayer market prices via Scryfall.
Whenever you cast a Cat, Dog, or Hero spell, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this token: You gain 3 life.") At the beginning of each end step, if you gained life this turn, put a +1/+1 counter on Lucky.