As the fifth boss of Dragon Soul, Ultraxion is the gateway boss to pursuing Deathwing and stopping the second cataclysm. While Thrall and the dragon aspects are busy with the Dragon Soul itself, we're tasked with defending Wyrmrest Temple from Ultraxion's assaults. Simple, right?
Ultraxion is an incredibly simple fight for tanks and damage dealers. In fact, it's already being called the Patchwerk-fight of this tier. Aside from a few extra button presses, non-healers are simply tasked with bringing Ultraxion down as quickly as possible. Healers, on the other hand, play a very special role in this fight. We're fighting against rapidly increasing AoE damage to the raid, and the aspects themselves step in to help us accomplish our task. Ultraxion is the healer-centric fight of this tier, like Baleroc and Chimaeron before him.