Nightmare [Alpha Edition] Urza's Legacy and library for any number

and library for any number of cards with the same name as that card and exile them

Set: Alpha Edition Type: Creature — Fungus Dinosaur Rarity: Rare Cost: {3}{G} Whenever Fungusaur is dealt damage

Set: Prophecy Type: Instant Rarity: Uncommon Cost: {2}{U}{U} You may discard an Island card and another card rather than pay this spell's mana cost

Set: Beta Edition Type: Artifact Rarity: Rare Cost: {1} {1}

Set: Commander's Arsenal Type: Enchantment Rarity: Rare Cost: {1}{G} At the beginning of your draw step

Nightmare [Alpha Edition] Urza's Legacy and library for any numberSet: 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.