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- Mythic: Immerseus
- Defeat Immerseus in Siege of Orgrimmar on Mythic difficulty.
Mythic: Immerseus is an achievement that is awarded for defeating Mythic Immerseus in the Siege of Orgrimmar raid instance.
Patch changes[]
Patch 6.0.2 (2014-10-14): Name changed from Heroic to Mythic. 
Patch 5.4.0 (2013-09-10): Added.
