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Defeat the bosses of The Crimson Hall in Icecrown Citadel in 10-player mode.

Defeat the bosses of The Plagueworks in Icecrown Citadel in 10-player Heroic mode.

Defeat Festergut while none of the players in your raid group ever had 3 stacks of Inoculated in 10-player mode.

Defeat the first four bosses in Icecrown Citadel in 10-player Heroic mode.

Claim victory in the Gunship Battle without any raid member visiting the enemy gunship more than twice in 10-player mode.

Defeat Harbinger Skyriss on Heroic Difficulty.

Defeat Warp Splinter on Heroic Difficulty.

Defeat Warp Splinter.

Complete the Burning Crusade dungeon achievements listed below.

Defeat Harbinger Skyriss.

Defeat Gruul the Dragonkiller in Gruul's Lair.

Defeat Murmur on Heroic Difficulty.

Defeat Nexus-Prince Shaffar on Heroic Difficulty.

Defeat Exarch Maladaar on Heroic Difficulty.

Defeat The Black Stalker on Heroic Difficulty.