WoWDB

Progress on this achievement is shared account wide.

Defeat every boss in Naxxramas in 10-player mode.

Criteria

• The Arachnid Quarter (10 player)
• The Construct Quarter (10 player)
• The Plague Quarter (10 player)
• The Military Quarter (10 player)
• Sapphiron's Demise (10 player)
• Kel'Thuzad's Defeat (10 player)