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.
Zatanna
Zatanna is one of the most powerful sorceresses in the DC universe, whose abilities are apparently genetic. As a tribute to her father and as a focal point, she usually casts spells by speaking verbal commands backwards. She has proven capable on many occasions of casting spells by speaking normally, and, in rarer occasions, the ability to use magic for simple tasks without speaking. Like Black Canary, Zatanna's reliance on her voice often led to her being bound and gagged by villains in Silver Age stories, thus rendering her 'powerless'. On very rare occasions, Zatanna has cast spells by writing them in her own blood rather than speaking them aloud. It is used as a last resort, only to heal from severe physical damage preventing her from speaking, like having her larynx mangled by a bullet, or her mouth magically erased by her own powers. The only magic command issued in both cases, "Heal me", had to be spelled backwards, as if she were speaking ("leaH em").