Gonna Go When the Volcano Blows (10 player)
Defeat Sartharion the Onyx Guardian without getting hit by Lava Strike in 10 player mode.
10
13/10/23
She Deep Breaths More (10 player)
Defeat Onyxia without anyone taking damage from a Deep Breath in 10-player mode.
10
02/10/23
More Dots! (10 player)
Defeat Onyxia in less than 5 minutes in 10-player mode.
10
02/10/23
Onyxia's Lair (10 player)
Defeat Onyxia in 10-player mode.
10
02/10/23
The Spellweaver's Downfall (10 player)
Defeat Malygos in 10-player mode.
10
09/10/22
Kel'Thuzad's Defeat (10 player)
Defeat Kel'Thuzad in Naxxramas in 10-player mode.
10
09/10/22
The Fall of Naxxramas (10 player)
Defeat every boss in Naxxramas in 10-player mode.
25
09/10/22
Sapphiron's Demise (10 player)
Defeat Sapphiron in Naxxramas in 10-player mode.
10
09/10/22
The Plague Quarter (10 player)
Defeat the bosses of The Plague Quarter of Naxxramas in 10-player mode.
10
09/10/22
The Arachnid Quarter (10 player)
Defeat the bosses of The Arachnid Quarter of Naxxramas in 10-player mode.
10
09/10/22
The Military Quarter (10 player)
Defeat the bosses of The Military Quarter of Naxxramas in 10 player mode.
10
09/10/22
The Construct Quarter (10 player)
Defeat the bosses of The Construct Quarter of Naxxramas in 10-player mode.
10
09/10/22
Besting the Black Dragonflight (10 player)
Defeat Sartharion the Onyx Guardian in 10-player mode.
10
07/10/22
Twilight Assist (10 player)
With at least one Twilight Drake still alive, engage and defeat Sartharion the Onyx Guardian in 10-player mode.
10
Twilight Duo (10 player)
With at least two Twilight Drakes still alive, engage and defeat Sartharion the Onyx Guardian in 10-player mode.
10
The Twilight Zone (10 player)
With all three Twilight Drakes still alive, engage and defeat Sartharion the Onyx Guardian in 10-player mode.
10
Arachnophobia (10 player)
Defeat Maexxna in Naxxramas within 20 minutes of Anub'Rekhan's death in 10-player mode.
10