Defeat Kel'Thuzad in Naxxramas while killing at least 18 abominations in his chamber in 25-player mode.
Naxxramas
ID 2185
Defeat Kel'Thuzad in Naxxramas while killing at least 18 abominations in his chamber in 25-player mode.
Naxxramas
ID 2185
Criteria
Icons and tooltips by Wowhead. Data from the realm's own database.