Asajj Ventress (Clone Wars)
"A ruthless and cunning military mastermind of the Confederacy, Asajj Ventress is instrumental in fighting the Jedi during the Clone Wars. Count Dooku discovered the mysterious Asajj Ventress on a war-torn planet shortly after the Battle of Geonosis. Though she had never trained as a Jedi, Ventress demonstrates a corrupt mastery of the Force. Under the tutelage of Count Dooku, she has embraced the dark side, using her twin curved lightsabers to cut down all those who would oppose her. Often accompanied by the bounty hunter Durge, Ventress is more than a match for the Republic's greatest Jedi."