Ob Nixilis, Unshackled [Double Masters 2022]

Set: Double Masters 2022 Type: Legendary Creature — Demon Rarity: Rare Cost: {4}{B}{B} Flying, trampleWhenever an opponent searches their library, that player sacrifices a creature and loses 10 life.Whenever another creature dies, put a +1/+1 counter on Ob Nixilis, Unshackled.