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Defeat Alysrazor in Firelands on Heroic Difficulty.

Defeat Lord Rhyolith in Firelands on Heroic Difficulty.

Defeat Shannox in Firelands on Heroic Difficulty.

Only kill Cinderweb Drones while they are atop the web canopy during the Beth'tilac encounter in Firelands.

Defeat Beth'tilac in Firelands on Heroic Difficulty.

Defeat Nefarian in Blackwing Descent on Heroic Difficulty.

Defeat Chimaeron in Blackwing Descent on Heroic Difficulty.

Defeat Atramedes in Blackwing Descent on Heroic Difficulty.

Defeat Maloriak in Blackwing Descent on Heroic Difficulty.

Defeat the Omnotron Defense System in Blackwing Descent on Heroic Difficulty.

Defeat Magmaw in Blackwing Descent on Heroic Difficulty.

Kill every Vile Spirit that spawns before it explodes and then defeat the Lich King in 10-player mode.

Defeat every boss in Icecrown Citadel in 10-player mode.

Defeat the Lich King in Icecrown Citadel in 10-player mode.

Defeat Sindragosa in 10-player mode without any member of your raid receiving more than 5 stacks of Mystic Buffet.