Darth Troika

She is found in "Feral Vengeance", a story on fanfiction.net.

Darth Troika is the leader of the Sith Three and her real name is Kaitor. Troika is Kaitor rearranged and means three in Russian.

She is a Sith Lord and incredibly powerful with the Force. She wields two lightsabers in each hand (red) and one lightsaber (black) in the air.

Her personal speeder has several lasers on it used on fleeing Jedi.