The Obsidian Sanctum Raid Guide for WotLK Classic

The Obsidian Sanctum is an area of the Chamber of Aspects beneath Wyrmrest Temple that is meant to act as a home away from home for the Black Dragonflight, where they may keep their eggs safe for hatching into new members of the flight. However, a clutch of Twilight Dragonflight eggs has been discovered within, leaving you and your Raid team to investigate at the request of Alexstrasza and the rest of the Wyrmrest Accord.

If you would like to know more about the other main Raid instances of Wrath of the Lich King Classic Phase 1, please see our overviews of Naxxramas, The Eye of Eternity, and the Vault of Archavon as well.

• Raid location — Dragonblight
• Attunement requirements — None
• Available Difficulties — 10-player and 25-player
• Encounters — 1
• Other notes — Sartharion has two mounts on his loot table: Reins of the Black Drake (10-player) and Reins of the Twilight Drake (25-player).

The Obsidian Sanctum is located within the Chamber of Aspects beneath Wyrmrest Temple in the Dragonblight zone. The nearest flight point for both Alliance and Horde players is also Wyrmrest Temple. Upon arriving, find the crack in the ice at the base of the temple to reach the raid entrance and summoning stone.

The Obsidian Sanctum is a small instance, containing only one main map and one encounter against its primary boss, Sartharion the Onyx Guardian. However, among the crags surrounding him are three Twilight Drake lieutenants, named Tenebron, Shadron, and Vesperon. If Sartharion is engaged while these lieutenants are still alive, they will each add an extra mechanic to the fight, but your rewards for defeating Sartharion will also increase!

To learn more about how to defeat Sartharion with all or none of the Twilight Drakes alive, see our strategy guide below.

There is only one quest directly related to The Obsidian Sanctum, potentially offered as a weekly objective from Archmage Lan'dalock near The Violet Hold dungeon in Dalaran. When this is the active weekly quest, you will also gain additional Reputation with the Kirin Tor:

• Sartharion Must Die!

There are 12 total achievements to obtain in The Obsidian Sanctum, split evenly between 10- and 25-player modes. These achievements are:

Achievement	Criteria
Besting the Black Dragonflight (10 player)	Defeat Sartharion in 10-player Mode
Gonna Go When the Volcano Blows (10 player)	Defeat Sartharion without getting hit by Lava Strike in 10-player Mode
Less Is More (10 player)	Defeat Sartharion and his Twilight Drakes with fewer than 9 players in 10-player Mode
Twilight Assist (10 player)	Defeat Sartharion with at least one Twilight Drake still alive on pull in 10-player Mode
Twilight Duo (10 player)	Defeat Sartharion with at least two Twilight Drakes still alive on pull in 10-player Mode
The Twilight Zone (10 player)	Defeat Sartharion with all three Twilight Drakes still alive on pull in 10-player Mode
Besting the Black Dragonflight (25 player)	Defeat Sartharion in 25-player Mode
Gonna Go When the Volcano Blows (25 player)	Defeat Sartharion without getting hit by Lava Strike in 25-player Mode
Less Is More (25 player)	Defeat Sartharion and his Twilight Drakes with fewer than 21 players in 25-player Mode
Twilight Assist (25 player)	Defeat Sartharion with at least one Twilight Drake still alive on pull in 25-player Mode
Twilight Duo (25 player)	Defeat Sartharion with at least two Twilight Drakes still alive on pull in 25-player Mode
The Twilight Zone (25 player)	Defeat Sartharion with all three Twilight Drakes still alive on pull in 25-player Mode