She is such a great Sith/Jedi. I hope you guys have played Star Wars: Knights of the Old Republic I and II: The Sith Lords. She is your teacher and teaches you the way of the light side and dark side of the force so you can better manipulate all! Darth Sion and Darth Nihilus are such as evil. I will not ruin the awesome story. Buy it, steal it, you all must play this game! It's out for the xbox.
Darth Traya is a powerful Sith, but i think that her character in ROTOR 2 was weak. she taught you things, but i would never use her to fight and she gets way to cryptic for me. as for Lord Reven, again cool character but not more powerful than many other Sith.
The dark is generous. It protects us from what we dare not know. The dark's patience is infinite. Eventually, even stars burn out.