Batman uses the mind controll device he designed for WW and the spheres he used to scour the globe for a new Justice league To enslave virtually every Meta on Earth with Powers.
Batgod will probably hire and co-ordinate all the bad guys anyway coz he's so Rich
That agent confiscated from Raz which was eradicating Atmospheric oxygen accross Earth will probably come in handy flung in the general direction of any particularly meddlesome types.
Finally Batman crashes all Government drives, software and communications
Then sits back in the batcave in Brazil with Maxima and a big bowl of popcorn