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

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

Defeat the Blood Council without anyone in the raid taking more than 23,000 spell damage in a single hit in 10-player mode.

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

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

Defeat Rotface without a Big Ooze casting Unstable Ooze Explosion 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.

Claim victory in the Gunship Battle without any raid member visiting the enemy gunship more than twice in 10-player mode.

Defeat Malygos in 6 minutes or less in 10-player mode.

Defeat Malygos with fewer than 9 in 10-player mode.

Defeat the bosses of Naxxramas with less than 21 people in the zone in 25-player mode.

Defeat Sapphiron in Naxxramas without any member of the raid having a frost resist value over 100 in 25-player mode.

Defeat the 4 Horsemen in Naxxramas, ensuring that they all die within 15 seconds of each other in 25-player mode.