Pokemon (2019) - episode 13 - 15 Feb, 2020

While the Gigantamax Drednaw chases Team Rocket, Ash and Goh lure it to them and battle with Pikachu and Scorbunny. When a strike from the Gigantamax Drednaw cracks open the ground and releases energy, Pikachu becomes a Gigantamax Pikachu without the use of a Dynamax Band. With help from Leon, Ash and Pikachu defeat Drednaw, with both Pokémon returning to normal after the battle. Ash asks to have a battle with Leon, who later sneaks up on Ash and Goh and agrees to battle Ash. (Source: Wikipedia)