Nightmare [Unlimited Edition] Modern Set: Legends Type: Sorcery Rarity:

Set: Legends Type: Sorcery Rarity: Rare Cost: {2}{B}{B} Exile All Hallow's Eve with two scream counters on it

Remove a charge counter from Umezawa's Jitte: Choose one —

Set: Ravnica: City of Guilds Type: Artifact Rarity: Rare Cost: {3} Whenever a nonartifact permanent enters the battlefield under your control

{T}: Each player gains control of all creatures they own

It's a matter of strength

Nightmare [Unlimited Edition] Modern Set: Legends Type: Sorcery Rarity:Set: Unlimited 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.