Board Thread:Versus Battles/@comment-28510017-20171122212557/@comment-28510017-20171123181410

Well, depending on how much of a threat he considers Observer, he could use the Spear of Destiny which hurt a multiversal being (The Spectre). However, it would likely kill Observer, which is a last resort because of Batman's no kill rule. It also has a drawback of potentially corrupting it's user. Also, the Spear of Destiny is a specifically designed and used to fight the Spectre, but it's still incredibly powerful.

The Mobius chair can answer any questions that could help find a way to put down Observer.

The Miracle Machine brings to life anything Batman wishes for.

I would like to bring up the Phantom Zone, but seeing as General Zod has escaped it before, I'm guessing that Observer could.