This episode was a big step up from last week's episode for sure. The animation in this one was really good. The battle between Froakie and Froagadier was extremely well done. The animators have been on fire with the XY battles so far. I thought Sanpei was a very likeable COTD(??). I still think there's potential for him to return, and I would love to see that. Maybe we could actually get to see him fight his brothers later down the line. I don't think he's a League rival, though considering Serena flat out stated their goals are different and I think that was meant to be taken as a sign that Sanpei isn't collecting badges. Normally, training episodes are very hit or miss for me but the creativity they had with this worked so much better than a lot of the DP training episodes, which I felt lacked originality and for the most part were Pokémon doing attacks for the most part. Here, they were creative with it and focused more on making an entertaining show.
There's not much to say about Clemont, Bonnie, and Serena. It was the same old, same old. Clemont's invention gag of him blasting off was different than the usual, though so that was good. Bonnie was back with her cutesy acts and while I am not a Bonnie fan, I think the Bonnie fans will be pleased with her this episode. What they're doing with Serena is interesting. She has had very limited screen time in most episodes, but you get the feeling she is learning and coming to grips with what it is to be a Pokémon trainer. TRio were so-so this episode. They were plot devices once again, but they did their job and I was fine with them.
It was great that Ash and Froakie were shown training together. That's something that is very great to see with Ash. He's the trainer, not the Pokémon so he doesn't have to be jumping in the trees or trying to run in the water. He's not a Pokémon ninja so doing ninja stuff isn't necessary for him, but Ash is always very determined to learn and train with his Pokémon and that's really great.
So all in all, it was a very good episode. One of XY's best so far.