Upon becoming a super-heroine, Wonder Woman became a founding member of the Justice League. Her ambassadorial duties required her to visit Washington D.C., with army officer Steve Trevor as her liaison. When Parademons stormed Metropolis, Wonder Woman resolved to defend the city, meeting the heroes Superman, Batman, Flash, Green Lantern and Aquaman. They also met the young hero Cyborg, who attempted to warn them against the evil alien conqueror Darkseid. Unfortunately, Cyborg's warnings were meaningless, as Darkseid had already arrived. Although Darkseid had initially beat them without effort, Green Lantern rallied them in order to confront Darkseid as a team. Wonder Woman proved crucial in Darkseid's defeat, stabbing him in one of his eyes to prevent him from using his Omega Beams. This gave Superman and Cyborg enough time to throw Darkseid back into his home-world.
As Diana, Victor and Arthur all try to simultaneously flank Superman (albeit unsuccessfully), Barry attempts to help using his speed, but Superman is able to see him and keeps up with the speedster. Despite Barry's best efforts, Superman is able to land a glancing blow, knocking him out before Batman arrives and gets Superman to stop. Wonder Woman tries to fight Superman again, yet she's knocked down. He then swats Batman and asks him the same question that Bruce asked him "Tell me, do you bleed?". Before Superman could kill Bruce, Lois and Alfred to stop him.
In August 2011, the third volume of Wonder Woman was cancelled along with every other DC title as part of a line-wide relaunch following Flashpoint. The series was relaunched in September with a #1 issue written by Brian Azzarello and drawn by Cliff Chiang. Wonder Woman now sports another new costume, once again designed by Jim Lee. Azzarello describes the new Wonder Woman book as being darker than the past series, even going so far as to call it a "horror" book.
For unexplained reasons, Heracles struck a deal with a mortal man, Harold Campion, whereby the two would exchange places (Earth for Olympus) Heracles used the mirror of Circe to conceal his identity and adventured under the name Champion. He cast a love spell on Diana and accompanied her for a time, until Diana discovered his true identity.
Phobos returned alongside his sister Eris in alliance with Circe. Circe had amassed great power by bringing gods of various pantheons together. Among them were the Roman gods, who challenged the Olympians for their domain. It took much strength for Zeus to summon Hermes and Diana to New Olympus, where the gods had been trapped. Earth's heroes were able to turn the tide against Circe, but three gods died: Circe killed Hermes; Harmonia was killed by her sister Eris; and Eris herself was slain by Son of Vulcan. Zeus and the Olympians decided then to follow the call of Cronus and the Titans to help guide other worlds in the universe. New Olympus was left to the Roman gods.
In the following days, Diana soon uncovered Ares, who exposed her to be the God Killer, having been originally conceived to be the ultimate weapon against her brother. Following this revelation, a fierce battle ensued, where Diana fulfilled her purpose in freeing mankind from Ares' influence. The loss of Steve in World War I had left Diana sobered, but she vowed to protect humanity whenever she was needed, albeit in a cautious and distant way.
Wonder Woman has also appeared in the 2013 NetherRealm Studios fighting game, INJUSTICE: Gods Among Us, as a playable character with her own set of super moves and alternate constumes, one of which was a New 52 skin. In the game, Wonder Woman is summoned alongside Aquaman, Green Lantern, Green Arrow, Batman, and the Joker into a world where Superman rules with an iron fist and said world's Wonder Woman is his second-in-command. Wonder Woman must unite with the others and this world's Batman to defeat Regime Superman for good. She is voiced by Susan Eisenberg.