Cleaver Blow is a rare Instant card from Mystery Booster 2 (MB2), collector number 542. Current market price: $0.18, TCGplayer market prices via Scryfall.
Multicleave {1} (You may pay an additional {1} any number of times as you cast this spell. For each time you do, choose a paired set of square brackets and remove the words in between.) Destroy target [nonblack] creature [with mana value 3 or less] [an opponent controls]. You [and its controller each] draw a card [and lose 2 life]. Create a [tapped] 1/1 white Spirit creature token with flying.