Kryptonite

As said, the writers at DC have tried to find weaknesses for an overpower character. For Superman they found Kryptonite, which is basically a piece of the destroyed home planet. We know that it exists in the newly formed DC Expanded Universe and that it will appear in Batman v Superman "“ we actually saw Lex Luthor owning quite a big rock in the trailer.

And if Lex Luthor has it, it is in the realm of possibility for Bruce Wayne to have it too.

But how will he use it? Some rumors say that his mech-suit will be laced with Kryptonite. Some say that he has a special spear-like weapon with a Kryptonite tip (really?!?). Some say that he has a ring. In any way, with such a weapon at his side, Batman does stand a chance.

Of course, there is also the problem of getting close enough to the Man of Steel to use it "“ but, as seen in Man of Steel, this shouldn't be an issue. Clark Kent is still hot-headed and doesn't have enough experience in battles, whereas the Batman has had plenty of opportunities to become better and better. And, as seen in the trailers for Batman v Superman, the two will come very close one to another.

Kryptonite "“ that's obvious!