Joker (Earth-9)

"Bruce says the Joker kills people just because he can. He's never gonna stop."

- Dick Grayson to Donna Troy

The Joker was a powerful criminal and the arch-enemy of Batman.

Fighting Batman
At some point, The Joker became a supervillain and the arch-enemy of Batman.

He would later cause an incident where a lot of people died which Batman and Robin failed to stop.

Abilities

 * Intimidation: The Joker is a master of intimidation and is even able to cause people such as Wonder Woman to fear what he is capable off.

Former Equipment

 * Gas: The Joker is known to use gas which kills people.
 * Crowbar: The Joker used a crowbar in order to kill Robin.