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Defeat Yogg-Saron with the assistance of two or fewer Keepers in 10-player mode.

Defeat Yogg-Saron within 7 minutes in 10-player mode.

Defeat Yogg-Saron without any raid member going insane in 10-player mode.

Defeat every boss in Ulduar in 10-player mode.

Defeat the bosses of The Descent into Madness area of Ulduar in 10-player mode.

Experience all 3 visions of Yogg-Saron's mind in Ulduar.

Experience all 3 visions of Yogg-Saron's mind in 10-player mode.

Defeat 12 Bloodthirsty Ghouls with Pistol Barrage and then defeat Lord Godfrey in Shadowfang Keep on Heroic Difficulty.

Complete the Cataclysm Heroic dungeon achievements listed below.

Defeat Commander Springvale without allowing him to receive Unholy Empowerment in Shadowfang Keep on Heroic Difficulty.

Defeat an Unyielding Behemoth while you have the Tidal Surge effect during the Ozumat encounter in Throne of the Tides on Heroic Difficulty.

Defeat the bosses of The Crimson Hall in Icecrown Citadel in 25-player Heroic mode.

Defeat Blood-Queen Lana'thel once as a vampire and again without becoming a vampire in 25-player mode.

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

Defeat Kael'thas Sunstrider in Tempest Keep.