Batman: Joker Crosses an Unthinkable Line In Joker War

The Joker just revealed a trap that he set for Batman at ACE Chemicals, and it
The Joker just revealed a trap that he set for Batman at ACE Chemicals, and it's one of the most twisted things the villain has ever done.

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Why didn't The Batman Who Laughs make a plan for if he went Joker-crazy? He made a plan to defeat himself in his normal state, and he didn't instantly go nuts when

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