Nightmare [Fifth Edition] Duel Storm (When you cast this

Storm (When you cast this spell

Set: Ravnica: City of Guilds Type: Artifact Rarity: Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control

{T}: Untap target Elf

Set: Aether Revolt Prerelease Promos Type: Instant Rarity: Rare Cost: {1}{U}{U} Counter target spell

Set: The Dark Type: Creature — Human Cleric Rarity: Rare Cost: {W}{W} {1}{W}

Nightmare [Fifth Edition] Duel Storm (When you cast thisSet: Fifth 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.