Bag of Holding is a rare Artifact card from Core Set 2020 (M20), collector number 222. Current market price: $0.65 (foil $0.60), TCGplayer market prices via Scryfall.
Whenever you discard a card, exile that card from your graveyard. {2}, {T}: Draw a card, then discard a card. {4}, {T}, Sacrifice this artifact: Return all cards exiled with this artifact to their owner's hand.