Arkal, otherwise known as "The Mystic", is a fictional character appearing in Shadow Origins: Goldvanius. A Cathar in his sixties, Arkal has served both the Jedi Order --notably instructing Gravatus-- and the Sith (though briefly).
Arkal resides in his own personal temple on Aargonar, accompanied by his institution of servants and bounty-hunters. In the Shadow Chronicles, he trains Dark Lord Goldvanius in the ways of the Force and lightsaber combat.
This character is based off of Obsidion's character in SWTOR - his name and appearance were designed by Obs.