That means you're looking at a glowing Sith lightsaber with a curved grip.
So, the Nightsisters are genuine magick-users! Nightsisters are Doin' it for ThemselvesIn a galaxy that seems to be all about Sith versus Jedi, it can be easy to forget that the two of those are just orders among an entire universe of Force-sensitive folks! Star Wars: The Black Series Asajj Ventress Force FX Lightsaber Now, some love to say that the Jedi are just a bunch of Space Wizards, but the Witches of Dathomir are bathed in energies of the Dark Side.That's why we're cheering on Asajj Ventress. Unfortunately, that only means that orders like the Sith can't wait to make use of all of their mysterious abilities.