Dreadmalkin is a uncommon Creature — Zombie Cat card from War of the Spark (WAR), collector number 87. Current market price: $0.09 (foil $0.83), TCGplayer market prices via Scryfall.
Menace (This creature can't be blocked except by two or more creatures.) {2}{B}, Sacrifice another creature or planeswalker: Put two +1/+1 counters on this creature.