Bruce's Justice league contingencies were naff.
Black Hands Tech drains Green Lantern Rings.
Superman is still frakked by magic?
Wonder Woman... Superglue. Watch her ripping off chunks of flesh and hair tot he bone as tries to stay four limbed. Paste Pot Pete should have done much better as a Super Villan.
Flash would be screwed over by Count Vertigo's tech or a black light generator.
Cyborg can just be virused. Has Bruce got anything to do with OMAC in The New 52?
Aquaman can be deydrated by almost anything hotter than a bugzapper.