Bats literally had a contingency plan for if the JLA found out about his contingency plans for them. He either truly is a god among men when it comes to strategy, or just the most paranoid mf on this Earth. But in all seriousness, the League would stand no chance against Bruce, because he has access to a weapon more powerful than any of them combined... *ALFRED*
Dick: hey Bruce forgot my birdarangs Bruce: $hit did you hear any of that Dick: all of it and £u€k you *leaves and becomes discowing as the edgy Dick Grayson era ensues