Wonder Woman (vol. 1) #179 (Nov. 1969) showed Wonder Woman giving up her powers and returning her costume and title to her mother, in order to continue staying in Man's World. The reason behind this was that all the Amazons were shifting to another dimension, but Diana was unable to accompany them as she needed to stay behind to help Steve, who had been wrongly convicted. Thus, she no longer held the title of Wonder Woman and after meeting and training under a blind martial arts mentor I-Ching, Diana resumed crime fighting as the powerless Diana Prince. She ran a mod-boutique as a business and dressed in a series of jumpsuits while fighting crime. During this period, Samuel R. Delany took over scripting duties with issue #202. Delany was initially supposed to write a six-issue story arc, which would culminate in a battle over an abortion clinic, but Delany was removed reportedly due to criticism from Gloria Steinem, who, not knowing the content of the issues Delany was writing, was upset that Wonder Woman had lost her powers and was no longer wearing her traditional costume.
Superhuman Reflexes: Wonder Woman's speed also extends to her reflexes, even if she is not moving at super speed, because when a German soldier fired her weapon past her, she could perceive the bullet as if it were moving in slow motion. She repeatedly used this skill to deflect bullets with her Bracelets of Submission and block the blows of her opponents with ease. One hundred years later, Wonder Woman's reflexes improve further, to the point that she was able to block all of the rapid machine-gun shots of a British terrorist with her bracelets, leaving the people standing behind her unscathed. When she dropped her sword mid-battle with Parademons, Wonder Woman was able to perceive Flash super speeding towards her fallen weapon, and hence outstretched her hand while he returned the sword to her grasp. Her reflexes were not powerful enough to contend with those of Flash or resurrected Superman, however, as Superman managed to grasp Wonder Woman's Bracelets of Submission before she could clash them.
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.
Gaines forwarded Jacobs’ letter to Marston, with a note: “This is one of the things I’ve been afraid of.” Something had to be done. He therefore enclosed, for Marston’s use, a memo written by Roubicek containing a “list of methods which can be used to keep women confined or enclosed without the use of chains. Each one of these can be varied in many ways—enabling us, as I told you in our conference last week, to cut down the use of chains by at least 50 to 75% without at all interfering with the excitement of the story or the sales of the books.”
The final remaining relics Darkseid needed were being guarded by A.R.G.U.S. at their HQ, so Darkseid decided to use a Boom Tube to transport the building and all its contents to his base in the Amazon Rainforest. The Female Furies retrieved the relics and put them into place while Wonder Woman fought Darkseid. With the relics' power, Darkseid was able to open a portal to Themyscira. As it is impossible for one who has set foot on Themyscira to return after leaving, Diana was unable to follow Grail through the portal. Grail invaded and began transforming the Amazons into creatures resembling Darkseid's Parademons. As Jason had never actually set foot on Themyscira, he followed Grail and met his mother Hippolyta for the first time since his birth. While Jason and Hippolyta fought off the transformed Amazons, Wonder Woman was able to defeat Darkseid through her love for her deceased father, Zeus, and her half-siblings, calling their spirits out of Darkseid's body and destroying him from the inside. The Amazons captured Grail and imprisoned her in the prison beneath Themyscira, alongside Ares, while Darkseid re-emerged somewhere on Earth. Jason was gifted a magical spear from his mother and returned to Earth.
Wonder Woman and the other heroes were finally released from the Firestorm Matrix when Batman used the Lasso of Truth on Firestorm. Superman was still infected with the Kryptonite shard inside his nervous system, but Lex Luthor was able to extract it, saving Superman's life. Luthor also assembled a group of villains that defeated the Crime Syndicate. Later, at the Batcave, Wonder Woman and the Justice League talked about the enemy that destroyed the Crime Syndicate's world and came to the conclusion that Darkseid would return.