Siffed (25 player)
Force Thorim to enter the arena while Sif is present in 25-player mode.
10
26/09/23
Firefighter (25 player)
Defeat Mimiron after activating his Self-Destruct mechanism in 25-player mode.
10
I'll Take You All On (25 player)
Defeat Thorim, the Ancient Rune Giant and the Runic Colossus in 25-player mode.
10
Lose Your Illusion (25 player)
Defeat Thorim while Sif is present in 25-player mode.
10
The Keepers of Ulduar (25 player)
Defeat the Keeper bosses of Ulduar in 25-player mode.
10
The Antechamber of Ulduar (25 player)
Defeat the bosses of The Antechamber area of Ulduar in 25-player mode.
10
Set Up Us the Bomb (25 player)
Defeat Mimiron without anyone in the raid being hit by the following in 25-player mode.
10