Resonating Lute is a rare Artifact card from Secrets of Strixhaven Promos (PSOS), collector number 221p. Current market price: $2.55 (foil $4.86), TCGplayer market prices via Scryfall.
Lands you control have "{T}: Add two mana of any one color. Spend this mana only to cast instant and sorcery spells." {T}: Draw a card. Activate only if you have seven or more cards in your hand.