Nightmare [Alpha Edition] Conflux Set: Mirrodin Type: Enchantment Rarity:

Set: Mirrodin Type: Enchantment Rarity: Rare Cost: {3}{R}{R} Whenever an artifact

Set: Commander 2016 Type: Instant Rarity: Rare Cost: {U} Counter target enchantment

Whenever enchanted creature deals damage to a creature

Set: San Diego Comic-Con 2015 Type: Legendary Creature — Human Soldier Rarity: Mythic Cost: {W} At end of combat

that player sacrifices a permanent unless they pay {1}

Nightmare [Alpha Edition] Conflux Set: Mirrodin Type: Enchantment Rarity:Set: Alpha Edition Type: Creature Nightmare Horse Rarity: Rare Cost: {5}{B} Flying (This creature can't be blocked except by creatures with flying or reach.) Nightmare's power and toughness are each equal to the number of Swamps you control. The Nightmare arises from its lair in the swamps. As the poisoned land spreads, so does the Nightmare's rage and terrifying strength.