Interestingly enough, while Batman is not a billionaire, the Joker is. Little is known about this world's Joker, only that he's a murderer and that he never, ever laughs (and that he's rich enough ...

She provided a clue, claiming that it would have a lot to do with a "little Joker card." "It really depends on what gets done in time and what is allowed, but I can tell you it's gonna be a little ...