Nightmare [International Collectors' Edition] Demon Spirit (A triggered ability uses the

(A triggered ability uses the words "when

Set: Friday Night Magic 2008 Type: Artifact Rarity: Rare Cost: {2} Imprint — When Isochron Scepter enters the battlefield

Set: Fifth Dawn Type: Artifact Rarity: Uncommon Cost: {3} {T}

creatures can't block unless their controller pays {1} for each of those creatures

form and energy shift to heed it

Nightmare [International Collectors' Edition] Demon Spirit (A triggered ability uses theSet: International Collectors' 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.