Evilswarm Nightmare [HA07-EN023] Super Rare Card Case You must also Tribute a

You must also Tribute a monster from your hand or field whose Level is 1 or more

You can only use this effect of "Utopic Onomatopoeia" once per turn

This card gains 500 ATK for each card sent to the Graveyard

a Machina Citadel in your Graveyard can come back at full force

• When an opponent's monster declares an attack: You can target that attacking monster

Evilswarm Nightmare [HA07-EN023] Super Rare Card Case You must also Tribute aSet: Hidden Arsenal 7: Knight of Stars Card type: Xyz Effect Monster Rarity: Super Rare Attack: 950 Defense: 1950 2 Level 4 DARK monsters When your opponent Special Summons a monster(s) (except during the Damage Step): You can detach 1 Xyz Material from this card; change that Special Summoned monster(s) to face down Defense Position.