One more plus his backstory: Darth Anansis was the last known Harch(same species as admiral Trench) Sith lord. He slew his master Darth Arach when it became clear to him that the sith master was using his sheer strength and natural brutality for his own secret ends and planned to kill him and take another apprentice shortly after the battle of Dis. Anansis was smart enough to hide his own sadistic and mad aspirations from his master...