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Defeat every boss in Icecrown Citadel in 10-player mode.

Defeat the Lich King in Icecrown Citadel in 10-player mode.

Defeat the bosses of The Crimson Hall in Icecrown Citadel in 10-player Heroic mode.

Defeat the bosses of The Frostwing Halls in Icecrown Citadel in 10-player Heroic mode.

Defeat Sindragosa in 10-player mode without any member of your raid receiving more than 5 stacks of Mystic Buffet.

Defeat the bosses of The Plagueworks in Icecrown Citadel in 10-player Heroic mode.

Defeat Professor Putricide without using Regurgitated Ooze on the Abomination in 10-player mode.

Defeat Festergut while none of the players in your raid group ever had 3 stacks of Inoculated in 10-player mode.

Defeat the first four bosses in Icecrown Citadel in 10-player Heroic mode.

Defeat Ragnaros.

Defeat the bosses in the city section at the base of Highmaul.

Defeat Imperator Mar'gok atop his citadel in Highmaul.

Defeat the bosses barring the way from the beach into the interior of the Arcane Sanctum in Highmaul.

Defeat Gug'rokk in the Bloodmaul Slag Mines on Heroic difficulty.

Defeat the bosses in Firelands.