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Realm First! Celestial Defender
Participated in the realm first defeat of Algalon the Observer in 25-player mode.
Realm First! Celestial Defender is earned by participating in your server's first-ever defeat of Algalon the Observer in Ulduar on 25-player mode, rewarding the title The Celestial Defender along with a server-wide broadcast announcing your guild's accomplishment.
Unlock Algalon the Observer
Algalon the Observer is unlocked by defeating the four Watchers in Ulduar with their hard modes active. He cannot be accessed until all four hard mode kills are completed.
Defeat Algalon Within Time Limit
Algalon despawns after a total of 1 hour of attempts per raid week, meaning your guild has only 1 hour of attempt time each reset to defeat him before he disappears until the next weekly reset.
Claim the Realm First Kill
Enter Ulduar and defeat Algalon the Observer before any other guild on your server does so. Upon a successful realm-first kill, a server-wide message is broadcast displaying your guild name alongside the Realm First! Celestial Defender achievement, and all 25 participating players receive the title The Celestial Defender.