Beta

Defeat the bosses of Naxxramas with less than 21 people in the zone in 25-player mode.

Defeat every boss in Naxxramas in 25-player mode.

Defeat Kel'Thuzad in Naxxramas in 25-player mode.

Defeat Sapphiron in Naxxramas in 25-player mode.

Kill Maexxna in Naxxramas within 20 minutes of Anub'Rekhan's death in 25-player mode.

Defeat Thaddius in Naxxramas with less than 21 players in 25-player mode.

Kill Patchwerk in Naxxramas in 3 minutes or less in 25-player mode.

Defeat the bosses of The Plagueworks in Icecrown Citadel in 25-player mode.

Defeat Kel'Thuzad in Naxxramas while killing at least 18 abominations in his chamber in 10 player mode.

Defeat the bosses of Naxxramas with less than 9 people in the zone in 10-player mode.

Defeat Thaddius in Naxxramas with less than 9 players in 10-player mode.

Defeat Patchwerk in Naxxramas in 3 minutes or less in 10-player mode.

Defeat Maexxna in Naxxramas within 20 minutes of Anub'Rekhan's death in 10-player mode.

Defeat Nefarian.

Kill 50 rookery whelps within 15 seconds.