Duskmantle Seer [Gatecrash] Nightmare Demon All face-up monsters become that

All face-up monsters become that Attribute

Set: Judgment of the Light Card type: Normal Spell Rarity: Secret Rare Send 1 face-up monster you control to the Graveyard

Exile Metallurgic Summonings: Return all instant and sorcery cards from your graveyard to your hand

if an opponent's monster with the same Attribute as a monster in your GY is destroyed by battle or card effect

Enchanted creature gets +4/+4 and has first strike

Duskmantle Seer [Gatecrash] Nightmare Demon All face-up monsters become thatSet: Gatecrash Type: Creature Vampire Wizard Rarity: Mythic Cost: {2}{U}{B} Flying At the beginning of your upkeep, each player reveals the top card of their library, loses life equal to that card's mana value, then puts it into their hand.