Ark of Hunger is a rare Artifact card from Secrets of Strixhaven (SOS), collector number 173. Current market price: $0.30 (foil $0.72), TCGplayer market prices via Scryfall.
Whenever one or more cards leave your graveyard, this artifact deals 1 damage to each opponent and you gain 1 life. {T}: Mill a card. You may play that card this turn.