Batman is the foremost vigilante in the DC Multiverse, protecting Gotham City from the most evil supervillains and violent ...

Written by Scott Snyder, in Endgame, Joker was able to use Joker toxin ... be activated if Batman killed someone. When Batman was blamed for a death, Failsafe came online and went after him.

Things escalate when the villain drives down the city's streets in a tank, and culminates in a fight to the death. "Endgame" ...