Defeat Forgemaster Garfrost in The Pit of Saron on Heroic Difficulty before any player gets 11 stacks of Permafrost.

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

Defense Protocol Gamma: Drak'Tharon Keep

Defense Protocol Gamma: Drak'Tharon Keep

Defeat the Halls of Lightning bosses on Heroic Difficulty while Defense Protocol Gamma is active.

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

Defeat the bosses in The Halls of Reflection.

Defeat the bosses in The Halls of Reflection on Heroic difficulty.

Escape from the Lich King in under 6 minutes.

Defeat the Black Knight in the Trial of the Champion on Heroic Difficulty without any player in the group being hit by a ghoul explosion.

On separate visits to the Trial of the Champion, get credit for defeating Argent Confessor Paletress after suppressing five different memories of the past on Heroic Difficulty.

Defeat the Drak'Tharon Keep bosses on Heroic Difficulty while Defense Protocol Beta is active.

Defeat the Azjol-Nerub bosses on Heroic Difficulty while Defense Protocol Beta is active.

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

Defeat The Nexus bosses on Heroic Difficulty while Defense Protocol Beta is active.

Defeat the Gundrak bosses on Heroic Difficulty while Defense Protocol Beta is active.

Defeat the Utgarde Keep bosses on Heroic Difficulty while Defense Protocol Beta is active.

Defeat the Drak'Tharon Keep bosses on Heroic Difficulty while Defense Protocol Alpha is active.

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

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

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

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

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

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

Defeat Gal'darah in Gundrak on Heroic Difficulty and have 5 unique party members get impaled throughout the fight.

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

Kill 100 Risen Zombies in 1 minute in The Culling of Stratholme on Heroic Difficulty.

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

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

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

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

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

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

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.