Board Thread:End of the Clone Wars Series/@comment-1657133-20130311235214/@comment-5461477-20130319065754

The Nightsisters were a sect of the Witches of Dathomir who embraced the usage of dark arts within their Force-driven Magicks. from Wookieepedia http://starwars.wikia.com/wiki/Nightsisters

so thats what I was trying to say. They use magic but through the force :)