The Obsidian Sanctum is the black dragonflight area of the Chamber of Aspects. The entrance is in Dragonblight [59.3, 49.3] and accessed via a crack in the ice below Wyrmrest Temple. It holds one raid boss, Sartharion the Onyx Guardian, and his three drake lieutenants,Shadron, Tenebron, and Vesperon. Raiders may choose to kill all three drakes or leave some combination of them alive. Completing the encounter with one or more drakes up increases both the difficulty and the quality of loot that drops.
A 10 and 25-player version of this raid exists.
Chamber of Aspects,Dragonblight
More than ten thousand years ago, the black Dragon Aspect, Neltharion, began a quest to reign supreme over his fellow dragons and thereby dominate Azeroth. Before Deathwing -- as Neltharion came to be known -- could achieve his goal, the other Aspects drove him into hiding, but the rest of the black dragonflight continued his foul work. Hated and hunted for its evil deeds, the black flight dwindled, and at first Deathwing schemed to bolster its ranks. In time, however, his agents began experimenting with other dragonflights to create a new and mightier breed of dragon. The resulting experiments gave rise to a powerful and terrifying new breed: the twilight dragons. These malefic dragons were believed to be destroyed after an attack on Grim Batol, but a new clutch of twilight eggs was recently discovered within the Obsidian Sanctum, the black dragonflight's domain in the Chamber of the Aspects. Now Azeroth's heroes must destroy the brood once and for all and prevent the dark future that has been set into motion.
In the wake of the Nexus War, Alexstrasza tasked her children with rooting out any danger and treachery within the Wyrmrest Accord. They quickly located a clutch of twilight dragon eggs within the Obsidian Sanctum. With their resources already strained in dealing with the Scourge and the blue dragonflight, Alexstrasza's consort, Korialstrasz, has sent word of the eggs to Dalaran's Council of Six in the hopes that able-bodied adventurers can enter the sanctum and destroy the twisted progeny of Deathwing.
The Obsidian Sanctum, a part of the Chamber of Aspects, is a secret chamber where members of the Black Dragonflight would convene whenever they wished to meet.
The portal to this instance is located underneath the Wyrmrest Temple, in Dragonblight.
|10-player mode||25-player mode||Objective|
|[Besting the Black Dragonflight]||[Besting the Black Dragonflight]||Defeat Sartharion in The Obsidian Sanctum|
|[Gonna Go When the Volcano Blows]||[Gonna Go When the Volcano Blows]||Defeat Sartharion without getting hit by Lava Strike|
|[Less Is More]||[Less Is More]||Defeat Sartharion and the Twilight drakes in The Obsidian Sanctum with fewer than 9/21|
|[Twilight Assist]||[Twilight Assist]||With at least one Twilight Drake still alive, engage and defeat Sartharion inThe Obsidian Sanctum|
|[Twilight Duo]||[Twilight Duo]||With at least two Twilight Drakes still alive, engage and defeat Sartharion inThe Obsidian Sanctum|
|[The Twilight Zone]||[The Twilight Zone]||With all three Twilight Drakes still alive, engage and defeat Sartharion <the Onyx Guardian> in The Obsidian Sanctum|