Shiny Tartagon

Ways to Obtain
Artifacts and Vendor
Currency
Lucky Coins
Mount Types
Tartagon
Colourings
Beige
Special Effects
Long Trail
Speed
Autoscales and 110%

Buy from the Artifact Collector for 100 Lucky Coins.

You will find the Artifact Collector in..
Tempest Bay – /setwaypoint 12976 11524
Meridian – /setwaypoint 6080 5135
Sanctum – /setwaypoint 7469 3004

You will receive a Lucky Coin every time you hand in an Artifact set.
There are over 1600 Artifact sets in the game so just keep collecting and eventually you will have enough Lucky Coins.