Nightmare [Beta Edition] Elemental Shaman Set: Stronghold Type: Creature —

Set: Stronghold Type: Creature — Phyrexian Shapeshifter Rarity: Rare Cost: {1}{U}{U} As long as the top card of your graveyard is a creature card

But mostly blood

Set: Arabian Nights Type: Creature — Turtle Rarity: Common Cost: {1}{U} Giant Tortoise gets +0/+3 as long as it's untapped

the Southland king: / A dragon coiled

Set: Future Sight Type: Creature — Lhurgoyf Rarity: Rare Cost: {1}{G} Tarmogoyf's power is equal to the number of card types among cards in all graveyards and its toughness is equal to that number plus 1

Nightmare [Beta Edition] Elemental Shaman Set: Stronghold Type: Creature —Set: Beta 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.