Clever Lumimancer is a uncommon Creature — Human Wizard card from Strixhaven: School of Mages (STX), collector number 10. Current market price: $0.24 (foil $0.18), TCGplayer market prices via Scryfall.
Magecraft — Whenever you cast or copy an instant or sorcery spell, this creature gets +2/+2 until end of turn.