Blackwater Bonecrusher

Best keep those bones to yourself if you don't want them crushed.

Riding Requirements:

This mount is available to all eligible characters on your account.
Level 10
Apprentice Riding

Source:

Blackwater Trove.

Notes:

This mount has a chance of appearing in a Blackwater Trove loot box which is awarded by Boatswain Hardee upon reaching Exalted with Blackwater Cartel in Undermine. These boxes are part of an 'emissary' or 'paragon' reputation system, where you're awarded a new box each time you gain a certain amount of extra reputation past Exalted. Mouse over this faction in your reputation list to see how much more you need.