How Does Batman Become a God?

In "Justice League: Darkseid War: Batman #1," as a result of the events in the current Darkseid War arc, several members of the League become gods, including Batman. Now the God of Knowledge, Batman sits atop the flying Mobius Chair that gives him godlike powers such as teleportation and telepathy.

Why Batman is a god?

However, in the process, Batman was imbued with power like never before, becoming a New God with endless mental abilities. He transcended everything we knew the Caped Crusader to be and would go on to play a critical role in stopping Grail and preserving the fabric of reality.

How did Batman get his superpower?

Between Batman/Superman issue 28-33, Batman became exposed to the Blackrock symbiote. The exposure gave him the power to fly, as well as super strength, super durability, and the ability to absorb and project energy.