Mewtwo

Mewtwo is the Legendary Pokémon of Psychic type from Kanto region. It doesn't evolve into or from any other Pokémon. It is available to capture in Raid Bonus Challenge after finishing EX Raid Battle.

Pokédex description
Genetic Pokémon

''Mewtwo is a Pokémon that was created by genetic manipulation. However, even though the scientific power of humans created this Pokémon's body, they failed to endow Mewtwo with a compassionate heart.''

Possible attacks
Fast attacks Charged attacks

Evolution family
Mewtwo is part of a one-member family.

Trivia

 * Niantic has announced it will only be available in future exclusive events, such as EX Raids.
 * On August, 2017, one day before the Pokémon GO Stadium event, a shiny variant was added to the game files, along with stat changes. Mewtwo was confirmed as a Raid Boss the following day.
 * Trainers who defeated a Mewtwo Raid Boss at Pokémon GO Stadium received over 50 Premier Balls and an increased capture rate.
 * As a Raid Boss, Mewtwo's CP was 49,430.
 * Mewtwo's maximum capture CP in Bonus Challenge was 2,275.
 * Mewtwo's Perfect IVs at level 20 is 2,275 CP.