Latest Pokemon GO information about Mewtwo Psychic and pokemon. Mewtwo is a Psychic-type Legendary Pokémon. While it is not known to evolve into or from any other Pokémon, it can Mega Evolve into two different forms: Mega Mewtwo X using Mewtwonite X and Mega Mewtwo Y using Mewtwonite Y. Mewtwo was created after years of horrific gene splicing and DNA engineering experiments based on Mew. It is said to have the most savage heart among all Pokémon, lack compassion, and strike fear into its enemy with cold, glowing eyes. Because it was engineered to be the ultimate in battle, it can only think of defeating its foes. It is a member of the Mew duo along with Mew.