Mewtwo

Mewtwo is a legendary Pokémon, the strongest Pokémon in the world. It was created from the DNA of Mew, the mythical Pokémon, and is a Psychic type. Its most common powers are Aura Sphere and Psychic Force. Aura Sphere is a bright purple sphere that emanates from its hands and is quite powerful. Psychic Force is an attack that levitates objects, and if it's a human or Pokémon, it damages them. So, you were on an island with your Pokémon when you found a cave filled with bright purple, pink, and blue crystals, and that's when Mewtwo appeared.