Beta

Complete the Cataclysm raid achievements listed below.

Defeat the Conclave of Wind in the Throne of the Four Winds while everyone in the raid has at least 7 stacks of Wind Chill.

Defeat Sinestra in the Bastion of Twilight on Heroic Difficulty.

Defeat Cho'gall in the Bastion of Twilight on Heroic Difficulty.

Defeat the Elementium Monstrosity in the Bastion of Twilight while only allowing it to create a single Liquid Ice patch.

Defeat the Ascendant Council in the Bastion of Twilight on Heroic Difficulty.

Defeat Valiona and Theralion in the Bastion of Twilight on Heroic Difficulty.

Kill 6 Twilight Fiends in the Twilight Realm and then defeat Valiona and Theralion in the Bastion of Twilight.

Defeat Halfus Wyrmbreaker in the Bastion of Twilight on Heroic Difficulty.

Damage Nefarian below 50% health before he lands for the final confrontation and then defeat Nefarian in Blackwing Descent.

Defeat Atramedes in Blackwing Descent without any raid member's sound bar going over 50%.

Defeat the Omnotron Defense System in Blackwing Descent while neutralizing the following attacks.

Defeat every boss in Ulduar in 10-player mode.

Defeat the bosses of The Siege area of Ulduar in 10-player mode.

Complete the 10-player raid achievements listed below.