With Patch 11.0.7, Blizzard is adding new expansion-meta mount for The War Within, similar to A World Awoken and Back from the Beyond.
This achievement requires completing many smaller achievements the main four zones of The War Within, as well as a new set of achievements in the upcoming Siren Isle!
The main achievement is called You Xal Not Pass and rewards the Shadow of Doubt mount. NEW You Xal Not Pass End Xalatath's schemes (for now) by completing the achievements below.
Reward: Shadow of Doubt NEW Shadow of Doubt Description: Manifesting after Xal'atath's disappearance, this shadow's very existence begs the question: Were her schemes truly thwarted?
Or have we just played deeper into her hands? Source: Achievement: You Xal Not Pass Category: Exploration The Siren Isle achievement is called Isle Remember You and also gives a mount — The Breaker's Song!