Silver Eldritch Steed

Ways to Obtain
Calendar - Trove of mounts, In Game Currency, Rift Store Mounts section, and Vendor
Currency
Credits and Platinum
Mount Types
Horse and 90%
Colourings
Black and Silver
Speed
Autoscales, Does Not Autoscale, 90%, and 60%

This mount costs 25 Platinum.
You can purchase it directly from the Rift Store Mount section.

Requires Level 25
Can also be purchased from ‘Shria Terke’ in Meridian at /setwaypoint 6151 5211 (Defiant)
The ‘Steady’ version does not Autoscale, this can be useful in some situations.

You can also buy this mount as an account wide unlock for credits. You will find it on the Rift Store for 720 Credits for patron or 800 Credits for non-patron. Called the Escalating Nimble Silver Eldritch Steed Bridle.