Lyshaa, a Zeltron female, was a criminal in the galaxy's seedy underbelly both before and during the Clone Wars. She lived during those years. Lyshaa is known for ending the life of Fe Sun, who was the Padawan of Jedi Master Shaak Ti.
Lyshaa stated that her reason for murdering the Jedi apprentice was to elevate her status in the criminal world. However, this wasn't her first act of murder. Years prior, she had murdered her entire family in a fit of uncontrolled anger. For her role in Fe Sun's death, Lyshaa was incarcerated on Brentaal IV. While imprisoned there, she formed a bond with Ryyk, a Wookiee warrior. When Shogar Tok, a Separatist Commander, took control of Brentaal IV amidst the Clone Wars, Lyshaa, along with Ryyk and fellow inmate Sagoro Autem, initiated a rebellion among the prisoners.

During this time, the Grand Army of the Republic was launching an attack on Shogar Tok's stronghold, which used to be the prison itself. General Shaak Ti led her soldiers into the structure. Ti and Lyshaa encountered each other directly, but the Jedi Master maintained control of her emotions and recruited Lyshaa's group to assist in defeating Shogar Tok. While Autem, Ryyk, and Quinlan Vos worked to disable the fortress's defenses, Shaak Ti and Lyshaa embarked on a mission to capture Tok, which led to a confrontation in the Commander's control center.
Lyshaa used her charm to seduce Shogar Tok. Following this, Shaak Ti arrived and demanded Tok's surrender. However, still wary of the Jedi, Lyshaa turned a blaster on Ti, shooting the Togruta in her abdomen. She then declared her loyalty to Shogar Tok. Ti, despite her injury, recovered and engaged Tok in a deadly duel, ultimately killing him. Realizing that the Jedi would attempt to apprehend her again, Lyshaa escaped and found herself in a lightstorm chamber. Rather than surrender to the Jedi, fearing Ti would kill her immediately, Lyshaa activated the chamber's sensors, triggering a barrage of laser beams. She died instantly.