Nightmare [30th Anniversary Edition] LRx2 Set: EX: Sandstorm Type: Lightning

Set: EX: Sandstorm Type: Lightning Rarity: Common Retreat cost: Colorless

Set: Scarlet & Violet: Black Star Promos Type: Lightning Rarity: Promo Retreat cost: Colorless

Aura and Equipment spells you cast cost {1} less to cast

Set: Sun & Moon: Guardians Rising Type: Psychic Rarity: Rare Retreat cost: Colorless

At the beginning of the upkeep of enchanted creature's controller

Nightmare [30th Anniversary Edition] LRx2 Set: EX: Sandstorm Type: LightningSet: 30th Anniversary 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.