Nightmare [Beta Edition] Rivals of Ixalan Prerelease Promos Set: Fate Reforged Promos Type:

Set: Fate Reforged Promos Type: Creature — Demon Rarity: Rare Cost: {3}{B}{B} Flying

But the Ants seemed to disagree

Set: Eventide Type: Creature — Beast Uncommon Cost: {2}{B/G} {B/G}

You may choose new targets for it

Nightmare [Beta Edition] Rivals of Ixalan Prerelease Promos Set: Fate Reforged Promos Type: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.