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

Defeat Archimonde in The Battle for Mount Hyjal.

Fish up The Lurker Below in Serpentshrine Cavern.

Defeat Onyxia in 25-player mode.

Kill 50 rookery whelps within 15 seconds.

Complete the classic raid achievements listed below.

Defeat Nefarian.

Defeat Archavon the Stone Watcher in 10 player mode.

Defeat Toravon the Ice Watcher in 10 player mode.