OOC: This happens in alternate dimension from the real Star Wars so no canon characters that take up the same role. (Like you can make a person named Revan with a bad-ass mask and hooded-cape but he can't be the Star Forge's master and do the whole KOTOR I adventure.)
"Come, my loyal friend. Today is the day we shall defect. We will go during the middle of the knighting of myself. While I am being knighted, you must strike down my old enslaver. And then we shall slaughter." Cratus said to his good friend, Atrox.
Cratus had just passed the Trials and his knighting ceremony was tonight. Just him and his master, then they would take their biggest step to the path of Sith Lords. They had already assassinated from the shadows those who would be a potential threat. The Grand Master was away on a crucial mission at the time.
"Now, I shall leave for my ceremony. After 4 minutes, you must come." And with a few steps, their plan begun.
OOC" Me and Atrox make the move! Oh, by the way, since Cratus despises slavery and sees minions and apprentices as them, his Sith Order will all be equals.