The Northern Lights (Doomhammer EU)

Morchok - 30 November
Yor'shaj the Unsleeping - 30 November
Warlord Zon'ozz - 30 November
Hagara the Stormbinder - 30 November
Ultraxion - 1 December
Warmaster Blackhorn - 1 December
Spine of Deathwing - 1 December
Madness of Deathwing - 6 December

Heroic Mode:

Morchok - 5 January
Yor'shaj the Unsleeping - 31 January
Warlord Zon'ozz - 22 March
Hagara the Stormbinder - 20 March
Ultraxion - 7 February
Warmaster Blackhorn - 10 May
Spine of Deathwing - 7 June
Madness of Deathwing - 21 June

Heroic Morchok

Heroic Yor'sahj

Heroic Ultraxion

Heroic Hagara

Heroic Zon'oss

Heroic Blackhorn

Heroic Deathwing!!!