Dusky Waycrest Gryphon

Common to the dark forests of Drustvar, these gryphon are silent and swift. Their prowess at operating on their own or as mounts lends them to be used for ambush and shock tactics.

Riding Requirements:

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

Source:

Quartermaster Alcorn in Arom's Stand, Drustvar. Requires Exalted with Order of Embers.
Cost: 90000 (reputation discounts apply for some factions)

Notes:

This beautiful burgundy-tinged gryphon may be purchased from the quartermaster after reaching Exalted with Order of Embers.

Introduced in:

Patch 8.2

Travel Mode:

Ground (+60% or +100% speed)
Flying (+150%, +280% or +310% speed)

Speed depends on your riding skill.

Other Mounts Using the Same Model:

Grand Armored Gryphon

Harbor Gryphon

Proudmoore Sea Scout

Stormsong Coastwatcher

Armored Kul Tiras Gryphon

More info on Wowhead:

Dusky Waycrest Gryphon taught by Reins of the Dusky Waycrest Gryphon