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

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

Defense Protocol Gamma: Utgarde Keep

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

Defense Protocol Gamma: Ahn'kahet: The Old Kingdom

Defeat the Utgarde Pinnacle bosses on Heroic Difficulty while Defense Protocol Gamma is active.

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

Defeat Cyanigosa in The Violet Hold on Heroic Difficulty while Defense Protocol Alpha is active.

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

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

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

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

On three different visits to The Oculus, get credit for defeating Ley-Guardian Eregos while riding an Amber, Emerald, and Ruby drake on Heroic Difficulty.

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

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

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.

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

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

Defeat General Bjarngrim in the Halls of Lightning on Heroic Difficulty while he has a Temporary Electrical Charge.

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

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

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

Defeat the bosses in The Oculus.

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

Defeat The Oculus bosses on Heroic Difficulty.

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

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 Caverns of Time: Stratholme bosses on Heroic Difficulty.

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

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

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

Defeat the bosses in Caverns of Time: Stratholme.