Bio: The new “leader” of the Royal Flush Gang, Ace comes from the
very first gang. After Joker tried to use her mind-control
ability for his own needs, Ace turned on him and eventually
Ace created her own Royal Flush Gang. Unlike before, however,
this Gang was nothing more than projections of Ace’s
imagination. Her “thoughts” were real this time, however. She
was set to have a massive aneurysm that would take out a few
miles of the city, along with anyone inside that radius.
Batman agreed to “kill” Ace with a device Amanda Waller
provided. Batman truly had no intention of killing Ace, however.
He convinced Ace to let go of her imagination to save the lives
of others. Batman sat with Ace until her death.
See more in Justice League