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Defeat the Keeper bosses of Ulduar.

Defeat Hodir before he shatters his rare cache in 10-player mode.

Defeat Hodir without any raid member being hit by Flash Freeze in 10-player mode.

Complete the 10-player raid achievements listed below.

Defeat the Keeper bosses of Ulduar in 10-player mode.

When fighting Thorim in Ulduar, participate in killing the Ancient Rune Giant and the Runic Colossus.

Defeat Thorim while Sif is present in 10-player mode.

Defeat Thorim, the Ancient Rune Giant and the Runic Colossus in 10-player mode.

While fighting Thorim in Ulduar, force him into the arena before Sif departs.

Force Thorim to enter the arena while Sif is present in 10-player mode.

Defeat Mimiron in Ulduar after activating his Self-Destruct mechanism.

Defeat Mimiron after activating his Self-Destruct mechanism in 10-player mode.

Defeat Freya in Ulduar while leaving all 3 Elders alive.

Defeat Freya in Ulduar while leaving at least 2 Elders alive.

Defeat Freya in Ulduar while leaving at least 1 Elder alive.