Pokemon XY&Z Episode 17 English Subbed Episode Title:Thunder and Onvern! The Angry Lightning Strike!!.Episode Description:For once, Ash, Serena, and Bonnie are having trouble keeping up with Clemont as he rushes toward a festival to honor the Legendary Pokémon Zapdos—who arrives in a raging lightning storm! Our heroes seek shelter in a cave, where they meet an injured paramedic who asks them to deliver some medicine. When Ash finds Team Rocket hiding in another part of the cave, it becomes clear why Zapdos is so angry! He sends Talonflame and Hawlucha out to distract Zapdos so he can get away, and when Zapdos knocks Hawlucha down, Noibat evolves into Noivern to rescue its friend! The medicine is delivered, and the festival is on!