Dark Apprentice

Asajj Ventress:"The dark side is strong in me, for I am Sith."
Count Duku:"A bold claim, but you are not Sith. You wear the trappings of the Sith, you fight like the Sith, but this can be imitated, however. You lack a vital quality found in all Sith. Sith have no fear, and I sense much fear in you."

Asajj Ventress was a female Dathomirian Dark Jedi and a valuable Dark Acolyte to Count Dooku. Originally a Nightsister from Dathomir, Ventress was taken as a slave to Rattatak and trained as a Jedi Padawan by Jedi Knight Ky Narec. However, after Narec was slain, Ventress gave into her anger and began walking the path of the dark side; taking up the lightsaber of her dead master, she trained herself in the Jar'Kai style of lightsaber combat, before slaying all the warlords on Rattatak and installing herself as its ruler.

Eventually, Ventress's actions came to the attention of Count Dooku, and after a test of her abilities, she became a commander in the Confederacy of Independent Systems. She had yearned to learn the ways of the Sith from Dooku and believed if she had proved herself worthy, she would become his apprentice.

During the Clone Wars, she became one of the most feared beings in the galaxy, notorious for her defeat of several Jedi. As the war continued, Ventress became the bitter enemy of both Jedi Knight Anakin Skywalker and Jedi Master Obi-Wan Kenobi.