Silverquill Apprentice is a uncommon Creature — Human Warlock card from Strixhaven: School of Mages (STX), collector number 231. Current market price: $0.15 (foil $0.30), TCGplayer market prices via Scryfall.
Magecraft — Whenever you cast or copy an instant or sorcery spell, target creature gets +1/+0 until end of turn.