The Sith brotherhood of Revan is a Star Wars: The Old Republic guild.
About the guild
Joining the guild
"I am Darth Revan, Dark Lord of the Sith. Those who use the dark side are also bound to serve it. To understand this is to understand the underlying philosophy of the Sith. The dark side offers power for power's sake. You must crave it. Covet it. You must seek power above all else, with no reservation or hesitation. The Force will change you. It will transform you. Some fear this change. The teachings of the Jedi are focused on fighting and controlling this transformation. That is why those who serve the light are limited in what they accomplish."
―Darth Revan's avatar