Nightmare [Beta Edition] HGSS06 while it has no Xyz

while it has no Xyz Materials: Destroy this card

−2: Tap up to two target nonland permanents

Set: Gym Heroes Unlimited Type: Water Rarity: Rare

"Aurora Leigh"

Set: Return of the Duelist Card type: Spell Card Rarity: Ultimate Rare Add 1 "Spellbook" card from your Deck to your hand

Nightmare [Beta Edition] HGSS06 while it has no XyzSet: 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.