Poet's Quill is a rare Artifact — Equipment card from Strixhaven: School of Mages Promos (PSTX), collector number 82p. Current market price: $0.43 (foil $0.35), TCGplayer market prices via Scryfall.
When this Equipment enters, learn. (You may reveal a Lesson card you own from outside the game and put it into your hand, or discard a card to draw a card.) Equipped creature gets +1/+1 and has lifelink. Equip {1}{B}