Grandmaster's Smokey Board

Coming in The War Within (patch unknown).

Riding Requirements:

Level 10
Apprentice Riding (ground)
Expert Riding (flying)

Source:

The Trading Post (seasonal)
Cost: 700

Notes:

This magical flying chessboard will be obtainable from the Trading Post in an upcoming month. Unfortunately we can't say exactly when, as Blizzard don't announce Trading Post offerings ahead of time.

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:

Grandmaster's Prophetic Board

Grandmaster's Royal Board

Grandmaster's Deep Board

Blizzard ID:

2578

More info on Wowhead:

Grandmaster's Smokey Board taught by Grandmaster's Smokey Board