Sudden Death is a uncommon Instant card from Time Spiral Remastered (TSR), collector number 143. Current market price: $0.13 (foil $0.53), TCGplayer market prices via Scryfall.
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.) Target creature gets -4/-4 until end of turn.