The Tro jeg clan, I would assume, are the higher level of alien beings. The highest, most staltwart of them (to my witness) reside upon the Scarlet Plateau just adjacent to the sun revenant ruins.
Wandering Tro jeg are also quiet common in the dunes. If they hit half as hard, and proc half of the DD that some on the plateau do, the a drop of invis could be an unpleasent suprise.
Until the exploration of the world continues, who knows. Some of these lovable extraterrestials may just give out quests. Shame, Luclin forces you to kill xenophobically for a number of quests. And I would have loved to do a drum session with these guys next to their dark cauldron temples.
Bobothered posted the opposing faction hits:
Tro Jeg Clan down
Cral Ligi Clan up
Vas Ren Clan up
Grol Baku Clan up
greetz, Stoutbok, Karana