Mask of the Mimic [Stronghold] Plains inflict 800 points of damage

inflict 800 points of damage to both players

except "Rock Band Xenoguitar"

you can Normal Summon 1 Fiend monster with 0 ATK/DEF in addition to your Normal Summon/Set

Set: Extreme Victory Card type: Field Spell Rarity: Rare Face-up "Meklord Emperor" monsters you control cannot be targeted by the effects of Synchro Monsters

Set: Aether Revolt Prerelease Promos Type: Legendary Artifact Rarity: Mythic Cost: {6} Whenever Gonti's Aether Heart or another artifact enters the battlefield under your control

Mask of the Mimic [Stronghold] Plains inflict 800 points of damageSet: Stronghold Type: Instant Rarity: Uncommon Cost: {U} As an additional cost to cast this spell, sacrifice a creature. Search your library for a card with the same name as target nontoken creature, put that card onto the battlefield, then shuffle.