S20E22 A Shivering Shovel Search! (Patreon)

A filler episode, but an okay one at best. Irene and Steve talk about how they really like Sandygast, but this episode was lacking compared to the last couple of episodes. 

Ash and Kiawe are training with Litten on the beach as Pikachu and Rockruff play with a mysterious shovel that seems to be moving around on its own—until it rises out of the sand to reveal a dangerous Sandygast! When Rockruff attacks it, the shovel is launched into the sea, and the furious Sandygast evolves into Palossand and traps Ash and Litten inside!