Catherine - Firtu Cardinali Incaarnano Cafe Zepelli. 

"Random selection is fine with me." Catherine said before her expression changed into a more serious one. "Of course, we're going to have to find a way to ensure that the selection is fair - with what we can do, I wouldn't put it past any of you to try and tilt the odds in your favour." 

Of course, being a magical girl meant that you, naturally, could use magic. Who knew what kind of tricks they could try to pull in order to ensure they got their favourite genre? Surely, the stakes of a contest of magical skill between magical girls were high.