Nightmare [Alpha Edition] Sliver Mutant Set: Odyssey Type: Creature —

Set: Odyssey Type: Creature — Human Wizard Rarity: Rare Cost: {U}{U}{U} Tap an untapped Wizard you control: Counter target spell unless its controller pays {1}

gain control of all Survivors

You may choose a noncreature

Set: Return to Ravnica Type: Creature — Elf Shaman Rarity: Rare Cost: {B/G} {T}: Exile target land card from a graveyard

You may look at and play that card for as long as it remains exiled

Nightmare [Alpha Edition] Sliver Mutant Set: Odyssey Type: Creature —Set: Alpha 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.