I always taught, a mystic is a verry inteligent person, and he uses his mind and staf to make a fire-bolt, mind control, summon, chain lighting, resurect, and that staf, should ranged, or something (for support). As a light magic, the mistic has no real power, only to heal, clear curse, but eventually he will enter in combat and he will die faster than a warrior for example, the dark magic has curses, but no real damage spells.
like attacker stance and defence stance, a healer stance and fight stance should be implemented (distance level)