Tower of Storms

The Tower of Storms (also known as the tower of Krolmir) is a large destructible building that can be found the Iron Concourse in Ulduar. It's said that the power of Thorim has been used only once, and that it turned an entire continent to dust.

Purpose
If left intact this tower will give a buff to the Flame Leviathan during the encounter. It also spawns Steelforged Defenders until the tower is destroyed.