With time HP can kill non-healing classes, against properly geared players though... it's gonna take alllooong time. Like having to kill an LK when nothing you do hits over 100 dmg.
Fighting gypsys is a major headache too. Water armor + their holy reduction from belmont. ~____~
As for healing classes, those duels only end when someone slips up, or gets warped. *Or they just suck xD*