Episode 37
The long-anticipated Kalos League finals are getting under way, as Ash faces off against Alain in a full six-on-six battle! The two seem evenly matched, trading one knockout after another: Pikachu beats Tyranitar and then switches out for Noivern, who falls to Alain’s Weavile. Hawlucha defeats Weavile, then loses to Alain’s Bisharp. Next, Ash’s Talonflame and Alain’s Unfezant knock each other out after a spectacular aerial battle, and it’s tied at three and three! Pikachu returns to face the massive Metagross—and shows amazing determination as it hangs on for the win! Then, Alain calls on his partner Charizard, and both Pokémon are confident and excited for the battle ahead!
Aired 11/08/2016EP 37 - Episode 37

Pokémon the Series: XYZ
The journey of Satoshi and his friends through the Kalos region continues! After Satoshi obtains his seventh gym badge, the group is moving toward the next town when Eureka discovers a mysterious Pokémon resting in her pochette. Soon given the name Puni-chan, it is one that even Satoshi and Serena's new Pokémon Zukan cannot identify. However, it quickly becomes apparent that Puni-chan is the target of a mysterious group clad in bright red suits known as Team Flare, aiming to capture the new Pokémon to further their agenda. But when Satoshi and the gang realize that the enigmatic organization has no intention of treating Puni-chan with any decency, they take a stand in opposition to Team Flare's plans, daring to fight back.
With Gojika's predictions looming above them, Satoshi aims for his final gym badge while Serena contests for her last Princess Key in order to be able to compete at the TriPokalon Master Class. But as Team Flare begins to move in search of the mysterious Z, the stories of Pokemon XY and Pokemon XY: Mega Evolution cross paths as Satoshi and his friends, along with Team Rocket, get caught up in a scheme that could put Kalos in great danger.
(Source: MAL Rewrite)