Reins of the Black Drake

The Reins of the Black Drake is an epic flying black drake mount.



Source
This item drops from Sartharion in the 10-man version of the Obsidian Sanctum. It drops only if all three Twilight Drakes have been taken alive into the boss fight.

Mount Journal
It never pays to leave a live dragon out of the equation.

Criteria of

 * Awake the Drakes

Trivia
Prior to Cataclysm this mount had 280% speed boost.