It’s never good when a Kryptonian goes bad. So, when Kara Zor-El was dramatically clipped by one of the Batman Who Laughs’ batarangs, the already overwhelming odds facing Superman and Batman got a lot worse…if not downright insurmountable.
The first time Batman and Superman shared a comic book cover was in 1940, so it’s pretty fair to say that the two legendary heroes are no strangers to teaming up.