Pokémon Horizons: The Series - Season 1 Episode 48 Shine! The Brilliance of Fire and Art!
Overview: Roy's opponent for his Terastal training assessment test is Colza! Roy is eager to battle him, but Colza has to postpone the training due to being busy preparing the art festival that's going to be held in Bowl Town. Just then, Nemo happens to pass by and asks Roy for a battle, which he agrees to. But when Colza watches their battle, it seems he has some thoughts about Roy's battle style...?