Priest of the Haunted Edge is a common Snow Creature — Zombie Cleric card from Kaldheim (KHM), collector number 104. Current market price: $0.14 (foil $0.33), TCGplayer market prices via Scryfall.
{T}, Sacrifice this creature: Target creature gets -X/-X until end of turn, where X is the number of snow lands you control. Activate only as a sorcery.