Incinerator of the Guilty [Murders at Karlov Manor]

Set: Murders at Karlov Manor Type: Creature — Dragon Rarity: Mythic Cost: {4}{R}{R} Flying, trampleWhenever Incinerator of the Guilty deals combat damage to a player, you may collect evidence X. When you do, Incinerator of the Guilty deals X damage to each creature and each planeswalker that player controls. (To collect evidence X, exile cards with total mana value X or greater from your graveyard.)