Emrakul, the Aeons Torn [Rise of the Eldrazi Prerelease Promos] Legendary Enchantment Creature Nightmare's power and toughness are

Nightmare's power and toughness are each equal to the number of Swamps you control

that spell can't be countered

If an effect causes you to discard a card

Lightning tethers souls to the world

Emrakul, the Aeons Torn [Rise of the Eldrazi Prerelease Promos] Legendary Enchantment Creature Nightmare's power and toughness areSet: Rise of the Eldrazi Prerelease Promos Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {15} This spell can't be countered. When you cast this spell, take an extra turn after this one. Flying, protection from spells that are one or more colors, annihilator 6 When Emrakul, the Aeons Torn is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.