Dissection Practice is a uncommon Instant card from Secrets of Strixhaven (SOS), collector number 79. Current market price: $0.22 (foil $0.22), TCGplayer market prices via Scryfall.
Target opponent loses 1 life and you gain 1 life. Up to one target creature gets +1/+1 until end of turn. Up to one target creature gets -1/-1 until end of turn.