The Siege of Ulduar Flame Leviathan Ignis the Furnace Master Razorscale XT-002 Deconstructor The Antechamber of Ulduar Assembly of Iron Kologarn Auriaya The Keepers of Ulduar Freya Hodir Mimiron Thorim The Descent into Madness General Vezax Yogg-Saron Celestial Planetarium Algalon the Observer Kologarn Arms Left Arm Right Arm Kologarn The Left Arm, part of Kologarn, is one of three elements in the fight against Kologarn who is guarding the Shattered Walkway in the Antechamber of Ulduar. It is a separate entity that has been assembled by Ignis the Furnace Master.