Dreadhorde Butcher is a rare Creature — Zombie Warrior card from War of the Spark (WAR), collector number 194. Current market price: $0.34 (foil $0.75), TCGplayer market prices via Scryfall.
Haste Whenever this creature deals combat damage to a player or planeswalker, put a +1/+1 counter on this creature. When this creature dies, it deals damage equal to its power to any target.