“(Obi-Wan) "That boy is our last hope." (Yoda) "No, there is another."”
"(Yoda) "Yamaro his name is.""
The Sith were a species of red-skinned humanoids native to Ziost and Korriban that were enslaved by exiled Dark Jedi ( rakata ).
Xendor was the first dark jedi although he never became a dark jedi while alive!. He came back as a ghost to lead the sith empire. To me he developed the first dark jedi and is a forfather of the sith empire as we know of today.
I understand the dark jedi call the dark side of the force bogan. I found while Force lightning gives a shocking experience. If you use the lightsaber combat form vaapad. You can reflect the lightning back to its source.
Force lightning can also be absorbed and redirected this is something i hope to learn in the future.
Iv'e heard story's of dark jedi useing something even more powerfull called Force Storm.