>>28378736The whole kalos queen gig requires polishing. Kinda like leagues and smaller competitions make Ash a better trainer and what not. But unlike Ash's goal that has no real check points, because it has never been truly defined, Serena's goal is within reach by training with the old hag and for what it seems she can't reach it unless she does. Or whatever really. Just dump her sorry ass and open up space for Luna.