Heroic: Mimiron's Sigil and its Normal mode equivalent Mimiron's Sigil are a portion of the third step in the Algalon the Observer attunement quest chain. Completing this quest requires the defeat of Mimiron in his Hard mode: Activate the timed self-destruct sequence before starting the encounter.


Prospector Loren at the Ulduar Archivum wants you to obtain Mimiron's Sigil.

For more information on obtaining Mimiron's Sigil consult the Archivum Console.


Mimiron's a clever one. His entire abode is rigged with some sort of self-destruction mechanism.

Unfortunately yer gonna have to race against it if ye want to get his sigil. Check the Archivum Console for more details if ye need them.





Quest progression

  1. Neutral 15 [80R] Heroic: Archivum Data Disc
  2. Neutral 15 [80R] Heroic: The Celestial Planetarium
  3. Complete all of the following:
  4. Neutral 15 [80R] Heroic: Algalon
  5. Neutral 15 [80R] Heroic: All Is Well That Ends Well

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