I already have a start for this one. Here is the basic idea:
Two siblings yeild seperate paths. Destiny awaits them. Fate controls them. Luck guides them. Time teaches them. Balance contains them. That is the prophecy that made absolutely no sense to anyone. Yet though it was stated many milleniums ago. It had yet to come true. So passed down through history over time even it was forgotten. Though not everyone had forgotten. For to forget...would be to throw off the fragile balance that keeps our world alive. Three hundred milleniums pass. And the year has turned to 2020. When even the wind has forgotten the fortold prophecy...the prophecy comes true.
Two siblings are born with symbols on their foreheads. One of chaos and the other of order. They were like two sides of the same coin. Where one was timid the other was cocky. Where one got was bad boy the other was good boy. One was weak the otehr was strong. So many differences yet they always balanced out.