After 25 years, perpetual 10-year-old Ash Ketchum has finally become the world's greatest Pokémon trainer. Ash's big moment took place in the latest episode of Pokémon Ultimate Journeys: The Series , which premiered today in Japan. In it, Ash's Pikachu defeats a Charizard belonging to Leon, who video game fans will remember as the champion of Pokémon Sword and Shield's Galar region. Their battle was the final bout in the Pokémon World Coronation Series Masters Eight Tournament, which pits champions from across multiple regions against one another, including Cynthia, Iris, Steven, and Lance. By defeating Leon, Ash effectively proved himself the strongest of all the Pokémon League Champions, thus completing the dream he first set out to accomplish when he left Pallet Town in episode one of the original 1997 series. This is an especially big deal for Ash, who historically has had a tough run in tournaments like this. In fact, until 2019, he'd never managed to bec