Well, Voracitos doesn't do a whole lot of fighting... like ever, so it's hard to tell. I'd like to say he's well rounded, but he definitely has a focus in mind: Your strengths and your weaknesses will kill you before they kill me.
What I mean by that, he uses Drain a lot to empower himself with your vitality. Then he's kinda gone into the mental route where he uses your memories to kill you using Memory Walk or Torture by Chagrin.
But those are just powers he uses a lot. His signature I think, is his uniquely green and superbly thick Sith Lightning. A blast of that stuff hits your body all at once and is often described as some wickedly powerful stuff. Almost Force Destruction, but still lightning.