The Black Drake drops from Sartharion in the 10-man version of the Obsidian Sanctum and the Twilight Drake in the 25-man version. These drakes will only drop if all three of Sartharion's Twilight Drake lieutenants are still alive when you engage him.
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.
|10-player mode||25-player mode||Objective|
|[Besting the Black Dragonflight (10 player)]||[Besting the Black Dragonflight (25 player)]||Defeat Sartharion in The Obsidian Sanctum|
|[Gonna Go When the Volcano Blows (10 player)]||[Gonna Go When the Volcano Blows (25 player)]||Defeat Sartharion without getting hit by Lava Strike.|
|[Less Is More (10 player)]||[Less Is More (25 player)]||Defeat Sartharion and the Twilight drakes in The Obsidian Sanctum with fewer than 9/21.|
|[Twilight Assist (10 player)]||[Twilight Assist (25 player)]||With at least one Twilight Drake still alive, engage and defeat Sartharion in The Obsidian Sanctum.|
|[Twilight Duo (10 player)]||[Twilight Duo (25 player)]||With at least two Twilight Drakes still alive, engage and defeat Sartharion in The Obsidian Sanctum.|
|[The Twilight Zone (10 player)]||[The Twilight Zone (25 player)]||With all three Twilight Drakes still alive, engage and defeat Sartharion <the Onyx Guardian> in The Obsidian Sanctum.|