Originally Posted by harark1
He would definately die. He isn't invincible he just ignores pain.(If you notice when the dark side exile can learn his ability it is called ignore pain.) Pain always kills you before the damage actually does, thus he can survive much more. But severing his brain from his body removes his abilty to control his body fuctions, therefore he dies. Kreia wins in that situation.
Yes, but it could also be vice versa where Sion severed Traya's head. Anyone would die from that.