Celevon Edraven Erinos, twin of Rowena Magnuri, was raised for the first twelve years of his life by their full Echani mother. This was so embedded in his being that, even after losing the memories of his early life, the Assassin carried on these beliefs. The Mandalorian training only served to enhance this. He believes that, in order to fully understand another person, they should face off in unarmed combat: No Force Powers, dirty tricks or weapons. In addition to this, Celevon will not respect someone who lacks the will to fight for themselves or others. To those who are unaware of this aspect of Echani culture, Celevon Edraven Erinos is always looking for a fight.

Most of those who have encountered Celevon Edraven Erinos have discovered to their dismay that in meeting his gaze or being in his presence, you are potentially revealing a secret. Due to extensive training and paranoid usage of Telepathy, the half-Echani has developed the instinctive response of skimming the intentions and surface thoughts of others. To respect the privacy of those he trusts, Celevon acts to suppress this urge unless he is given due cause, such as acting in a suspicious manner.

Due to this distraction, Celevon Edraven Erinos’ reaction time to threats is several heartbeats slow; more than enough time for a skilled operative to get in a potentially lethal opening strike with the moment in their favor.

For a long time, the Onderonian focused a majority of his will on keeping his darker half suppressed. Having come to terms with it, he has accepted his own psychosis in the form of Disassociative Identity Disorder. His alternate personality, Kalas, is a manipulative and cunning being hell-bent on causing chaos, represented in tattoo form on Celevon's left pectoral as a demonic Jester. When Kalas is allowed to the forefront of Celevon's mind, his organic eye turns to the feral yellow of one that has completely succumbed to their own inner darkness.

However, with this change comes a natural fallback, at takes several seconds for the metamorphosis to occur, leaving him vulnerable for those precious moments. If Kalas is wearing the Mandalorian helm, his presence can be noted by the use of the conversion-hilt lightsaber or the Dampened Force abilities near him, as Suppression is not a power used by Celevon himself.

Outside of combat situations, Celevon Edraven is purely professional in almost all aspects of his life save when facing those few he trusts implicitly. He has been described as a ‘cold-hearted’ by those who only see this side of him. This is more a factor of his paranoia and trust issues due to past betrayals, so he tries to maintain some sense of detachment through the use of an icy facade. He dislikes ‘small talk’, preferring to get straight to the heart of the matter and not waste time unnecessarily; attempting to do so will have you under the Onderonian’s sarcastic, sharp tongue. Because of this behavior, Celevon Edraven is seen as an introverted cynic and unapproachable.

As his alternate personality, Kalas is severely lacking in restraint when he enters the bloodlust driven by his love of battle. Whilst some would frown over the lack of discipline, they still cannot deny that this makes Celevon Edraven Erinos an exceptionally dangerous individual when the demonic Jester comes out. Though his mobility is hindered these days, the sheer amount of stamina he has makes facing the half-Echani a worrying prospect. The Mandalorian willingly gives this alternate control when he fears or doubts his own abilities.

This comes with the natural fallback of, despite being a nightmare to face alone or in small numbers, he is so in tune with battle that Celevon is unable to discern friend from foe. In an attempt to negate this problem, he often is sent on missions alone and tells others to stay away during the metamorphosis.

Between his extensive study on the lightsaber forms Juyo and Vaapad, Celevon Edraven Erinos has come to the conclusion that they are identical save the mindset. Whereas Vaapad controlled one's own inner darkness, using themselves as a conduit of the Force, Juyo embraced the love of battle whilst relieving oneself of all restraint. This specific technique is a form of moving meditation via the constantly active bodily movements is known as Ce'dihr'an or 'Twin Souls' in Ancient Sith.

It is this state of mind that makes Celevon capable of sensing a larger area in battle, though it comes at the cost of rational thought as he embraces the ebb and flow of battle. Due to the severe shift, there is now a noticeable pattern to his constant motions; at first, Celevon is on the defensive, cunningly awaiting the perfect moment where Kalas will strike suddenly.