Blue-Purple Mechanostrider

There is one tameable creature with this look.

Blue-Purple Mechanostrider
Requires Mechanical Taming.Required Skill: Mechanical Taming
Gnome, Goblin and Mechagnome hunters automatically know how to tame Mechanicals. Hunters of other races must acquire the skill from a Mecha-Bond Imprint Matrix, crafted by Engineers who have at least 1 skill point in Legion Engineering.
Can Be Tamed
The Dormitory, Gnomeregan (Dungeon)
A prismatic card reveals a hidden room. He'll need a shocking kick before he becomes tameable. We're not yet sure of the minimum level required to tame this one!
Level scaling: Most NPCs will scale with the Hunter's level, within the constraints of their level range. Hunters can tame regular NPCs up to 2 levels higher than them, but can only tame elite NPCs of the hunter's level or below.