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Defeat Onyxia without anyone taking damage from a Deep Breath in 10-player mode.

Defeat Sartharion the Onyx Guardian without getting hit by Lava Strike in 10 player mode.

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

Defeat Patchwerk in Naxxramas in 3 minutes or less in 10-player mode.

Win Alterac Valley while your team controls both mines.

Defeat the boss encounters in Halls of Stone.

Complete the Green Hills of Stranglethorn, Hills Like White Elekk and Snows of Northrend achievements.

In a single Warsong Gulch battle, kill 2 flag carriers before they leave the Warsong Flag Room.

Defeat Illidan Stormrage in The Black Temple.

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

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

Defeat Grand Magus Telestra in The Nexus on Heroic Difficulty after having killed her images within 5 seconds of the first one dying during each split.

Win a greed roll on a superior or better item above level 185 by rolling 100.

Use the Dungeon Finder tool to finish random heroic dungeons until you have grouped with 50 random players total.

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