Prismari Pianist is a rare Creature — Djinn Bard card from Secrets of Strixhaven Commander (SOC), collector number 34. Current market price: $0.22, TCGplayer market prices via Scryfall.
Whenever you cast an instant or sorcery spell, create a 1/1 blue and red Elemental creature token. If that spell's mana value is 5 or greater, create three of those tokens instead.