Stirring Hopesinger is a rare Creature — Bird Bard card from Secrets of Strixhaven Promos (PSOS), collector number 35p. Current market price: $0.62 (foil $1.51), TCGplayer market prices via Scryfall.
Flying, lifelink Repartee — Whenever you cast an instant or sorcery spell that targets a creature, put a +1/+1 counter on each creature you control.