Source: dccomics.com

9. Zatanna

I'm going to be fully honest here. Zatanna has always been my hold out for Batman's one true love.

Paul Dini's Batman and Zatanna stories are excellent, and better than my favorite Batman/Catwoman and Batman/Talia tales. Of course, Zatanna's power level is also among the greatest in the DCU. Magic is a pretty big deal. And Zatanna is pretty good at doing it, having been trained by her father, the brave Golden Age magician Zatara.

Zatanna's magic operates through the use of backward speak. If she says something backward, it occurs. For instance, yelling Raeppa erif would cause fire to appear. Simple stuff. But impressive results. Admittedly, her big weakness is the fact that her abilities require her to be able to speak. So if you take away her voice (or her oxygen), she goes out.

However, if you can't do either of those things, she will destroy you with crazy amounts of magic powers.