Skirsdag High Priest is a rare Creature — Human Cleric card from Double Masters (2XM), collector number 106. Current market price: $0.31 (foil $0.26), TCGplayer market prices via Scryfall.
Morbid — {T}, Tap two untapped creatures you control: Create a 5/5 black Demon creature token with flying. Activate only if a creature died this turn.