The Emerald Nightmare: Xavius

Objectives
Defeat Xavius in the Emerald Nightmare.
 * (normal, raid finder, heroic, mythic)
 * Vial of Swirling Shadow

Description
The time has come to tackle the source of the Nightmare, and restore balance to the Emerald Dream. Battle into the heart of the Nightmare, and face the Nightmare Lord Xavius.

Rewards
You will receive:

Completion
...

Gains

 * 16,450 XP