Dread Raven

Filled with the hatred of an ancient god, the dread raven are the Arakkoa's most trusted guardians.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding (ground)
Expert Riding (flying)

Source:

Promotion: Collector's Edition

Notes:

This mount is one of the rewards for purchasing the Warlords of Draenor Collector's Edition or the Digital Deluxe Edition. It has clear similarities to Anzu, the non-flying Raven Lord mount from the Burning Crusade. It's even possible it's meant to be a version of Anzu from before he was corrupted.
If a Dread Hatchling companion is out while you mount up, it will send love to its presumed parent!