Duel in Renigen's office

This duel took place in 1,049 BBY, on the planet.

Prelude
In the years preceding this duel, Odion was the apprentice of Sith Lord Renigen. After completing many missions for his Master, Odion decided that he was ready to take the mantle of Sith Lord from him. Odion planned carefully, making sure that all was in place. He mind-tricked the office guards into leaving their posts, and then Force-flashed the security cameras. Then he entered the office.

The Duel
Odion entered the office and the Master and apprentice exchanged words before Odion proclaimed his challenge. Renigen stood, drew his lightsaber, and leapt at Odion. The younger Sith was renowned as a juggernaut, a pure brute of dark side strength. He quickly beat his Master back towards his desk, but Renigen was too smart to be backed into a corner. Jumping over Odion, Renigen ran for the door. Odion whirled and blasted him with Force lightning. The Sith Lord fell, and Odion approached, sensing victory. Renigen stood and attacked his apprentice again, but once again Odion beat through his Master's defenses. This time, he cut Renigen's blade arm off, and quickly impaled him.

Aftermath
As Renigen lay dying, Odion absorbed his misery and pain, and a newfound nihilism was born in the young Sith. He was convinced that everything led to death and void, and that he should help the galaxy achieve nothingness.