Nightmare [International Collectors' Edition]

Nightmare [International Collectors' Edition]Set: 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.

target opponent creates two 0/2 green Plant creature tokens with defender

You may cast that card this turn

"Fire is the test of gold

and then sacrifices 1/3 of the lands he or she controls

Set: Legends Type: Instant Rarity: Rare Cost: {2}{R} Cast this spell only during combat before blockers are declared

Roar of the World is in the command zone or on the battlefield

Set: Alpha Edition Type: Sorcery Rarity: Common Cost: {B}{B} Destroy target land

Set: Commander 2016 Type: Instant Rarity: Uncommon Cost: {U} Return target nonland permanent to its owner's hand

Target player can't cast spells this turn

−7: Any number of target players each draw twenty cards

Set: Vanguard Series Type: Vanguard Rarity: Rare Creatures you control have vigilance

Set: Oversize Cards Rarity: Rare Sacrifice a land: Add to your mana pool one mana of any type the sacrificed land could produce