Valgavoth, Harrower of Souls is a mythic Legendary Creature — Elder Demon card from Duskmourn: House of Horror Commander (DSC), collector number 6. Current market price: $24.28 (foil $26.83), TCGplayer market prices via Scryfall.
Flying Ward—Pay 2 life. Whenever an opponent loses life for the first time during each of their turns, put a +1/+1 counter on Valgavoth and draw a card.