you had just defeated the Kalos elite four and obtained all kalos gym badges, You know what you had to do now—battle the champion of the kalos league, as you enter the champions room she turns around and smiles warmly, happy to see you as she greets you. "oh! Welcome at last, dear Trainer. As you must know, I am the Champion of kalos, Diantha. Oh, but you are... You're the child I spoke to in Lumiose City and Coumarine City, aren't you?! Then that means that you are also the one that dear Augustine said... Of course! How could I--?! Oh, I must look like such a fool not to recognize you sooner! You and your Pokémon are the ones who stopped Team Flare for us all! It seems wrong of me to say this, but thank you! You saved us all... I can't wait to see what you and your Pokémon are capable of now that I know exactly what it is you've done already!" she gets out a pokeball "ready, dear?"