I still think assault should allow you to kill the victim-permanent consequances.
It could have these posibilities: -you succed and victim dies
-you succed and victim is wounded
-you fail and escape
-you fail and get wounded during escape
-you fail and die
It would worth the risk then. As it is now it's pointless. Wounding can happen randomly in battle.
If you're target is a Hero they die. It has just been one of those things, you wanna die, be a Hero.