Pokemon Season 12 - Episode 582 – Trials and Adulations!

Dawn wants to use Mamoswine in her next contest so she did some training and she met a stray Aggron whom Dawn battled to increase Mamoswine's power, but Mamoswine was injured in the process. Dawn and her Pokémon used the medical skills taught to them in the episode Doc Brock to cure Mamoswine, then Mamoswine defeated the wild Aggron. Mamoswine then began to obey Dawn.