Evilswarm Nightmare [HA07-EN023] Super Rare

Set: 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.