Dunno, why you think that here any crap that will break something. Maybe you mean meta system, yeah that gonna be broken... Sorry for it, and i dont offer to make it tommorow, i just think that way of fight in game atm, is a bit too simple, and based on random, so most of time you cant prognouse results, that mean > after few years of playing in game and leveling your skills you didnt get any fair benefits, that will help you to be sure in something.
And in my suggestion I didnt add any new mechanic of fight, just added some numbers for some things, and some effects, that again just give some bonuses. Also that will help you to prognouse your way of fight, and end of it.