They are easy to handle one-on-one but you rarely find them without others. Big groups of Quara occasionally raid. Liberty Bay or the plantations.
All vocations: stay diagonal to avoid beam attacks. Paladins: try to keep distance and use Light Healing to remove paralysis. Mages: keep a distance and use energy strike. It is also recommended to use Mana Shield if fighting in close quarters with this creature. Knight: Kill them fast or their exori-like attacks and their beams will hurt you quite a lot.