Zachary Zatara
Zachary Zatara is a fictional character in the DC Universe. Zachary is a descendant of the Homo Magi just like his cousin Zatanna and uncle John Zatara. He first appeared in "Teen Titans (vol. 3)" # 34, and was created by Geoff Johns and Tony Daniel.
Captain Marvel (DC Comics)
Mazahs is a corrupted alternate-universe version of Shazam, introduced in the 2013–14 "Forever Evil" DC Comics crossover event series. He is the super-powered alter-ego of Alexander Luthor of Earth-3. In the story, the Crime Syndicate (evil Earth-3 analogues of the Justice League) have brought Alexander Luthor, their prisoner, with them to the Prime Earth where the Justice League and other heroes reside. Prime Earth's Lex Luthor and his team sneak in to the Justice League Watchtower where the Syndicate has Alexander hostage, and remove the duct tape over his mouth, allowing Alexander to speak the magic word "Mazahs!" and transform into his muscular, highly powerful alter-ego. While Prime Earth's Shazam is known for sharing his powers with others, Mazahs kills other superbeings and takes their powers for his own, as when he kills the Syndicate's speedster Johnny Quick. In the final issue of the series, it is revealed that Earth-3's Wonder Woman analogue, Superwoman, is in a relationship with Alexander and tricked her teammates into bringing him with them. She also reveals she is carrying his child, who is prophesied to bring an end to the world. Exploiting his ability to use the powers of those he has killed, Mazahs easily takes down both the Syndicate and Luthor's team, but Prime Earth Lex Luthor (having the same voice as Mazahs) manages to call down the lightning, using a lightning-rod that Batman had retrieved to try and use against Johnny Quick based on his planned defense against the Flash, and transform Mazahs into his human form. Sealing Alexander's mouth, Lex stabs him with a knife, killing him.