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Defeat Warmaster Blackhorn in Dragon Soul on Heroic Difficulty.

Defeat Warmaster Blackhorn on Normal or Heroic Difficulty without allowing any Twilight Barrages to damage the Skyfire.

Defeat Hagara the Stormbinder in Dragon Soul on Heroic Difficulty.

Defeat Warlord Zon'ozz in Dragon Soul on Heroic Difficulty.

Defeat Mannoroth in Well of Eternity on Heroic Difficulty after dealing enough damage to Mannoroth while Varo'then is still alive to cause him to sacrifice Varo'then to heal himself.

Defeat Peroth'arn in Well of Eternity on Heroic Difficulty without any party member being detected by an Eye of Peroth'arn.

Kill every Vile Spirit that spawns before it explodes and then defeat the Lich King in 25-player mode.

Allow Necrotic Plague to stack to 30 before defeating the Lich King in 25-player mode.

Defeat the bosses of The Frostwing Halls in Icecrown Citadel in 25-player Heroic mode.

Defeat Sindragosa in 25-player mode without any member of your raid receiving more than 5 stacks of Mystic Buffet.

Complete the 25-player raid achievements listed below.

Defeat Lady Deathwhisper with at least five different types of Cultists active at the time of her demise in 25-player mode.

Defeat Ultraxion in Dragon Soul on Heroic Difficulty.

Defeat 20 Twisted Spirits within 15 seconds during the Jin'do encounter in Zul'Gurub on Heroic Difficulty.

Defeat High Priestess Kilnara in Heroic Difficulty after having fed Temple Rats to 4 of Bethekk's Pride.