In Justice League Dark, Zatanna was able to cancel Felix Faust's magic to stop women from talking in his house by removing cloth from the statue. But after that Zatanna just lost control and she almost killed Felix Faust in an attack but Constantine stops her.
Even Felix Faust admits that he is afraid of her. And when she lost control she looks like possessed. I have seen many Zatanna adaptations from DCAU to Young Justice but never noticed her being that powerful and offensive before.
So, What really happened to her? Is this part taken from some comics?