A Merciless God
Nearly everything has been taken from him. His family, his city, his friends. Even his secret identity is gone. Bruce Wayne is pushed up against the wall, and to save what he has left he does the unthinkable.
From there? A new world is formed, though to begin construction the old one must be destroyed. From the ashes of the Regime a New Olympus will rise. With Batman the Merciless leading it.