Archfiend of Despair [Commander Masters] Reaction Set: Fossil Unlimited Type: Psychic

Set: Fossil Unlimited Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

Set: Sword & Shield: Darkness Ablaze Type: Psychic Rarity: Uncommon Retreat cost: Colorless

Set: Commander Masters Type: Legendary Creature — Elder Dinosaur Rarity: Rare Cost: {6}{R}{G}{W} Vigilance

Then your opponent may play a card with total cost equal to or less than the total cost of the card cancelled this way from their hand without paying its cost

Archfiend of Despair [Commander Masters] Reaction Set: Fossil Unlimited Type: PsychicSet: Commander Masters Type: Creature Demon Rarity: Mythic Cost: {6}{B}{B} Flying Your opponents can't gain life. At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.) Flying Your opponents can't gain life. At the beginning of each end step, each opponent loses life equal to the life that player lost this turn. (Damage causes loss of life.)