Shortly after, Diana decides to venture to the Underworld to look for Zola. Lennox requests to come, but Diana shoots down his attempt, saying that she is going solo, save for Hermes as the only way to go to Hades is to either die or be escorted by Hermes. While in the Underworld, Hermes tells that the place is more or less an extension of Hades' (now preferring to call himself "Hell") will.
Later, Etta was released from hospital and Diana accompanied her to her home. She was shot by a sniper, but deflected the bullet and interrogated the attacker, who called herself Mayfly. She revealed that she had attempted to assassinate Wonder Woman in return for a bounty that had been placed on her. Shortly afterwards, Diana was attacked by five more assassins: Cat Eye, Cheshire, Abolith, Baundo and Plastique, the latter of whom revealed that she had planted the bomb at the wedding. Wonder Woman was able to defeat them all with the help of Etta, and they returned to an A.R.G.U.S. facility. There, Sasha Bordeaux informed her that another scientist, Hamilton Revere, had heard of Dr. Crawford's attempts to harvest Diana's DNA, and had apparently hypothesized that it could be used for the treatment of numerous diseases. Wonder Woman was intrigued and decided to seek out Revere of her own accord and hear out his plans. When she arrived, Revere informed her that in truth, he sought to use her DNA to create an army of super-soldiers. He had also used samples of Diana's blood to grant some of his goons super strength, who attacked her. Etta and Steve Trevor arrived to assist Wonder Woman, and together they bound the attackers in the Lasso of Truth, which once again removed the lie within their bodies. Revere was arrested, and Diana returned home with Steve and Etta.
She is playable as "Dawn of Justice Wonder Woman" in the first Injustice Mobile game, based on her appearance in Batman v Superman: Dawn of Justice. In her Themyscira armor she is playable as "Amazon Wonder Woman", and in normal armor she is playable as "Mythic Wonder Woman" in Injustice 2 Mobile, both based on her appearances in Wonder Woman (film).
Trevor pitched a mission to destroy the facility where the gas was being created, but his superiors decided against it, stating that it was too late in the war to do something as drastic as that. When Trevor argued that more soldiers would die, his superiors simply stated that that was what soldiers did. With the battle of Themyscira and the death of her aunt so fresh in her mind, Diana was infuriated by the man's comments and berated him, calling him a coward and telling the rest of the council that they should be ashamed. Trevor escorted her out as she ranted, apologizing to the council on her behalf.
One of the events that led to Infinite Crisis was of Wonder Woman killing the villain Maxwell Lord in Wonder Woman (vol. 2) #219. Maxwell Lord was mind-controlling Superman, who as a result was near to killing Batman. Wonder Woman tried to stop Superman, Lord (who was unable to mind control her) made Superman see her as his enemy Doomsday trying to kill Lois Lane. Superman then attacked Wonder Woman, and a vicious battle ensued. Buying herself time by slicing Superman's throat with her tiara, Wonder Woman caught Lord in her Lasso of Truth and demanded to know how to stop his control over Superman. As the lasso forced the wearer to speak only the truth, Lord told her that the only way to stop him was to kill him. Left with no choice, Wonder Woman snapped Lord's neck and ended his control over Superman. Unknown to her, the entire scene was broadcast live around every channel in the world by Brother Eye. The viewers were not aware of the entire situation, and saw only Wonder Woman murdering a Justice League associate. Wonder Woman's actions put her at odds with Batman and Superman, as they saw Wonder Woman as a cold-blooded killer, despite the fact that she saved their lives.