From Grace Chapter 2

120% sure that Leaf wouldn't encounter anything but the post-B2/W2-league Latis on her very first step in the Dreamyard, as opposed to the dazillions of Munna wavering there. That's how badass she is. Whatever she says goes.
Remember the "Daddy, I want a motherfucking airplane dragon!" line from Charlie and the Chocolate Factory? (OMG I didn't mean to do this pun) Well that was her.
"Screw the rules, I have dragons" and all that stuff. We might as well call her Khaleesi.