Prep-time
From Superdickery
The deus ex machina method utilised by Batman. With enough prep time, he can presumably beat anyone, or possibly everyone, all at once if necessary. (some people argue this is a plot device to create a contrast between a non-powered superhero and powered superheroes that normally should kick his goddamn jock in less than a nanosecond, but people know no batshit fucking loco jack shit)
No one is exactly sure what prep time consists of; scientific experiments, training, meditation, heterosexual intercourse with one or more of the fine ladies that surround Batman, but one thing is for sure: He's the goddamn Batman. And he can breathe in space.
Failure to use prep time may result in Batman losing fights, which has occured on more than one occasion.