Mewtwo

Mewtwo is a Pokmon created by science. 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 Pokmon 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. In the first movie where it was shown to be capable of levitation telepathy and mind control Mewtwo exemplified these vicious characteristics. However it was later shown to be caring protective and even altruistic. Another Mewtwo in the anime shared its aversion to contact with others but was much less belligerent. Mewtwo conserves energy by remaining motionless in order to unleash its full power in battle. It is also capable of materializing psychic waves in the form of its signature move Psystrike. Though rarely seen in the wild it is said to be resting in a dark cave somewhere. Source: Bulbapedia