Blue and Gold Empyreal Walker

Ways to Obtain
Calendar - Trove of mounts, Events, and In Game Currency
Currency
Chaos Motes (CTA)
Mount Types
Mechanized Walker
Colourings
Blue, Grey, and Gold
Speed
Autoscales

More Information
Can be bought during the Call to Action Mech Week World Event.
For a full list of mounts you can visit the Mount Skins List.