Witherbloom Apprentice is a uncommon Creature — Human Druid card from Strixhaven: School of Mages (STX), collector number 247. Current market price: $0.37 (foil $2.69), TCGplayer market prices via Scryfall.
Magecraft — Whenever you cast or copy an instant or sorcery spell, each opponent loses 1 life and you gain 1 life.