My girlfriend and Pokémon's tragic battle

The Pokémon "champion" from another world descended into the Pokémon world, without cheat codes, without system malls, but with the heart to dominate the Pokémon League. Giving it a blessing from Celebi can retain its original characteristics while adding a changeable ability? The Shining Butterfree who likes to collect strange stones inexplicably gives his partners the opportunity to super evolve? With a witch-like appearance and a devil-like personality, she is the supreme queen in battle, but she likes to compete with a certain cat for favor? The ancient paradox species, respected as Sister Fa, but the little crybaby in the team? The brave knight who goes forward bravely, hits and sucks at the same time, dares to fight even the mythical beasts...