Defeat the Caverns of Time: Stratholme bosses on Heroic Difficulty while Defense Protocol Gamma is active.

Defeat the Caverns of Time: Stratholme bosses on Heroic Difficulty.

Defeat the Infinite Corruptor in The Culling of Stratholme on Heroic Difficulty.

Defeat the bosses in Drak'Tharon Keep.

Defeat the boss encounters in Halls of Stone.

Defeat The Oculus bosses on Heroic Difficulty while Defense Protocol Gamma is active.

Defeat the Devourer of Souls in The Forge of Souls on Heroic Difficulty without him successfully casting Phantom Blast.

Defeat the boss encounters in the Halls of Stone on Heroic Difficulty while Defense Protocol Gamma is active.

Defeat Ley-Guardian Eregos in The Oculus on Heroic Difficulty within 20 minutes of Drakos the Interrogator's death.

Defeat Ley-Guardian Eregos in The Oculus on Heroic Difficulty without anyone in your party using an Emerald Drake.

Engage King Dred in Drak'Tharon Keep on Heroic Difficulty and slay 6 Drakkari Gutrippers or Drakkari Scytheclaw during his defeat.

Defeat Trollgore in Drak'Tharon Keep on Heroic Difficulty before Consume reaches ten stacks.

Defeat Sjonnir the Ironshaper in the Halls of Stone on Heroic Difficulty and kill 5 Iron Sludges during the encounter.

Defeat Herald Volazj in Ahn'kahet on Heroic Difficulty in 2 minutes or less.

Defeat Jedoga Shadowseeker in Ahn'kahet on Heroic Difficulty without killing any Twilight Volunteers.

Defeat Elder Nadox in Ahn'kahet on Heroic Difficulty without killing any Ahn'kahar Guardians.

Defeat Krik'thir the Gatewatcher in Azjol-Nerub on Heroic Difficulty while Watcher Gashra, Watcher Narji, and Watcher Silthik are still alive.

Defeat Ichoron in the Violet Hold on Heroic Difficulty without allowing any Ichor Globules to merge.

Defeat Loken in the Halls of Lightning on Heroic Difficulty in 2 minutes or less.

Defeat The Oculus bosses on Heroic Difficulty.

Defeat Ley-Guardian Eregos in The Oculus on Heroic Difficulty without anyone in your party using a Ruby Drake.

Defeat Anomalus in The Nexus on Heroic Difficulty without destroying any Chaotic Rifts.

Defeat Keristrasza in The Nexus on Heroic Difficulty without allowing Intense Cold to reach more than two stacks.

Defeat The Nexus bosses on Heroic Difficulty.

Defeat Grand Magus Telestra in The Nexus on Heroic Difficulty after having killed her images within 5 seconds of each other during both splits.

Defeat the Ahn'kahet: The Old Kingdom bosses on Heroic Difficulty.

Defeat Zuramat the Obliterator in The Violet Hold on Heroic Difficulty without killing any void sentries.

Force Svala Sorrowgrave to kill a Scourge Hulk on Heroic Difficulty in Utgarde Pinnacle.

Defeat the Azjol-Nerub bosses on Heroic Difficulty.

Defeat Prince Keleseth in Utgarde Keep on Heroic Difficulty without shattering any Frost Tombs.

Defeat Gal'darah in Gundrak on Heroic Difficulty while under the effects of Eck Residue.

Defeat Moorabi in Gundrak on Heroic Difficulty while preventing him from transforming into a mammoth at any point during the encounter.

Defeat the Maiden of Grief in the Halls of Stone on Heroic Difficulty in 1 minute or less.

Defeat Anub'arak in Azjol-Nerub on Heroic Difficulty in 4 minutes or less.

Defeat Hadronox in Azjol-Nerub on Heroic Difficulty before he webs the top doors and prevents more creatures from spawning.

Defeat Novos the Summoner in Drak'Tharon Keep on Heroic Difficulty without allowing any undead minions to reach the floor.

Defeat King Ymiron in Utgarde Pinnacle on Heroic Difficulty without anyone in the party triggering Bane.

Defeat Skadi the Ruthless in Utgarde Pinnacle on Heroic Difficulty after having killed Grauf from 100% to dead in a single pass.

Defeat Skadi the Ruthless in Utgarde Pinnacle on Heroic Difficulty within 3 minutes of starting the gauntlet event.

Defeat the bosses in The Oculus.

Defeat the bosses in Utgarde Pinnacle.

Defeat the bosses in Ahn'kahet: The Old Kingdom.

Defeat the bosses in Azjol-Nerub.

Defeat the bosses in The Nexus.