Pokémon: Simultaneous time travel, this Ash is too versatile

On the day Ash became a Pokémon Trainer, a chat group appeared, and it turned out to be full of people from parallel worlds!Ash, who became the champion: Pokémon can't be left to roam freely; they need proper nutrition and a specific training regimen.Ash the Aura Warrior: That's not how you catch Pokémon. You have to hit them hard until they accept you.Ash the Breeder: Use food to tame Pokémon, use food to raise Pokémon.Tactical Master Ash: Do you even know how to play competitive battles? Do you understand rotation? Do you know how to build a weather team? Do you know how to use Substitute to defend against poison? Get out of the way, let me play.……Rejoice! He is a trainer who possesses all of Ash's talents and abilities, transcending time and space, making him an all-around trainer!Now standing before you is the All-Round King—Ash!This book is also known as "[All are finished accounts, except for me, who is the only one starting account?]".