Ying and yang

Hey guys here a idea for you what if there was a meter that chose what role you play for example... At one side of the bar there be good and the other be bad let's say the more ast. You get the more good you be if you get kills then you be more bad that will determine what skills you will have that means there be four good skils and four different skills for bad so that way you can make a mage/support or assassin/support all depends on what and how you play