The Goose Mother is a rare Legendary Creature — Bird Hydra card from Wilds of Eldraine Promos (PWOE), collector number 204p. Current market price: $1.45 (foil $5.83), TCGplayer market prices via Scryfall.
Flying The Goose Mother enters with X +1/+1 counters on it. When The Goose Mother enters, create half X Food tokens, rounded up. Whenever The Goose Mother attacks, you may sacrifice a Food. If you do, draw a card.