The Challenge part two (Patreon)

 As the referee for their arm wrestling match, Batgirl found herself in the unenviable position of having to decide the winner between two titans after the table cracked in half, but she'd prepared for that eventuality.  

Her compromise was unconventional, perhaps, but neither of them seemed affronted.  The gas she'd recovered from Poison Ivy worked just like the villain had said it would, and within minutes she was right where she'd always hoped she could be.  With any luck, she'd be able to synthesize the stuff later, at the lab, and conduct some more extensive trials in more private settings.