Nightmare [Ninth Edition] Mirrodin Besieged Set: Mercadian Masques Type: Instant

Set: Mercadian Masques Type: Instant Rarity: Common Cost: {B} Add {B}{B}{B}

If that card's art is by Wayne England

On still nights you can hear its rotted teeth grinding tirelessly on scavenged bones

Set: Beta Edition Type: Instant Rarity: Uncommon Cost: {U} Cast this spell only during an opponent's turn

Nightmare [Ninth Edition] Mirrodin Besieged Set: Mercadian Masques Type: InstantSet: Ninth 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 thunder of its hooves beats dreams into despair.