• Reins of the Black Drake
• Item Level 70Disenchants into:
  Not disenchantable
• Binds when picked up
• Unique
• Requires Level 70
• Requires Riding (300)
• Use: Teaches you how to summon this mount. This is a very fast 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.

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB