Multiversity: Harley Screws Up The DCU — DC Comics
Issue: #4
How can Harley stop herself from screwing up the timeline if her future self has already screwed it all up? First she discovered she totally stopped Superman and the Flash from ever existing, and now she’s finding out that she totally time-traveled right over Wonder Woman’s and Aquaman’s origins too! Harley has to stop Harley, or at least try to put the pieces of the DCU she’s broken back together...
Creators: Jimmy Palmiotti, Amanda Conner, Frank Tieri, Andrew Dalhouse, Logan Faerber, Meghan Hetrick, Ferran Delgado, Travis Mercer, Katie Kubert, Alex Galer, Ben Meares
Characters: Harley Quinn, Poison Ivy, Catwoman, Wonder Woman, Aquaman, Artemis, Mr. Freeze, Killer Croc, Hippolyta, Cheetah (Minerva), Black Manta, Phillipus, Starro, Captain Boomerang, Nubia, Tom Curry, Atlanna, Red Tool