This Structure Deck Duel Pass is a Theme Deck focusing on Dark Attribute Monsters (15 Pack per box). It will release on 18 October 2008 From : http://www.amiami.com/shop/ProductInfo/product_id/99909
This Duel Pass base on Structure Deck 12 (Curse of Darkness) from Real Life
Card List from this SD will give you some idea which cards will include in this Duel Pass. http://yugioh.wikia.com/wiki/Structure_Deck_12:_Curse_of_Darkness
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