Nisha may have been born the daughter of spacers, but Tiamat is a descendant of the royal Keto family of Cinnagar. Everything about her reflects this, from her languid movements and haughty demeanor to the way she dresses and her expectations on how she is treated. Deferring only to those responsible for her return, Tiamat fully expects to be obeyed without question, which can cause some conflict with those who do not recognize or care about royal bloodlines.

Born on a freighter to a mixed couple who were trying to find their own place in the galaxy, Nisha had been to fifteen planets before her fifth birthday. By the time they had settled on Kyataru, her tongue had picked up bits and pieces from so many places that her accent is nearly impossible to pin down. She speaks with a soft lilt, a slight drawl and often uses a strange cadence. This unique accent can be distracting or difficult to understand in scenarios where there is a lot of background noise, especially among those unfamiliar with her speech.

Puppet masters have little affinity for their puppets, and Tiamat is no exception. Those who can not sense the Force are replaceable tools in her mind, empty husks worth only what they can do to serve her ends. She views journeymen and most equites in a similar way, in that any attempts to understand or engage with them are not genuine, but sociopathic scouting to make her manipulation of them later that much more effective and enhancing their worth to her.

Whether she is actually possessed as she claims or if it is a byproduct of her mind being twisted by the Force, Nisha presents herself as the legendary Krath sorceress Tiamat. Her deep knowledge of Krath Lore and wild Force affinity lends credence to her claim, often inspiring reactions in those who are familiar with the lore of the Brotherhood. While she enjoys the awe of those who react positively, she defends her claim quite aggressively against those who do not believe her.

Tiamat believes in the strength and supremacy of the arcane teachings of the Krath. As such, she relies heavily on her capacity to manipulate the minds of enemies, before falling back on her brutally effective mastery of Force Lightning and Telekinetics to seal their fate. She is a very capable duelist, but she tends to use the Force as her primary weapon, supplementing her attacks with the blades as need dictates.

Burning from within with the power that only a Grand Master could wield, she came to the Force through violently unnatural means. The rapid on-flux of power twisted her mind in cruel and capricious ways, her sanity stretched thin before she was stabilized using ancient Krath rites and special sigils tattooed into her skin. Her rapid ascent to power causes her to not fully comprehend the extent of her own abilities while under duress, her reactions akin to using a powerhammer to swat an insect.