Foul Waterfowl: Ash and friends, along with the sunglasses-wearing Sandile, battle against a trio of Jerkass Ducklett who steal their stuff and the latter's sunglasses.
Security Blanket: Sunglasses Sandile loses his bravado when his sunglasses are stolen by a Ducklett.
The Day the Music Lied: Iris calls her Excadrill to clear the collapsed tunnel Ash fell into. The triumphant music starts playing... then abruptly stops to a halt as it becomes clear that Excadrill is STILL unwilling to listen to her orders.
Pikachu also learns Electro Ball in this episode after an umbrella tossed earlier by the Ducklett encircles him, preventing him from properly discharging electricity.