6 decks per box. Each raid deck contains 142 cards: 110x Raid Deck cards (plus one UDE Points card or LOOT card), 15 oversize hero cards, and 16 treasure pack cards.
Hovering in Dragonblight, the mighty necropolis of Naxxramas and the Scourge forces within have begun to systematically wipe out all those who oppose the Lich King in Northrend. Be prepared for the terrifying monstrosities that lumber within the walls for they are not for the faint of heart. Now is the time to strike a mighty blow against the Lich King by destroying Kel'Thuzad and the Scourge army that he commands.
The warriors of the frozen wastes await you, enter if you dare.
* Death Knights, Abominations, Spiders, Plagues and Liches! Face off against a wide variety of monsters and bosses as your party must navigate through all four wings of Naxxramas before battling Kel'Thuzad!
* Increased treasure! More Treasure Pack cards, including an alternate art hero.