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Disarmed (10 player)

Destroy both of Kologarn's arms and then Kologarn himself within 12 seconds in 10-player mode.

Criteria – Requires 1 out of 1

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Kologarn slain

Related

Glory of the Ulduar Raider (10 player)
Complete the 10-player raid achievements listed below.
25Reward: Rusted Proto-DrakeDungeons & Raids