In the core series games
Price
Effect
In battle
If held by a Mewtwo (or is present in the player's Bag)PE, allows it to Mega Evolve into Mega Mewtwo X if its Trainer has a Key Stone. Each Trainer can only Mega Evolve one Pokémon per battle.
Unaffected by item negating effects (such as Embargo and Klutz). Item manipulating effects (such as Trick and Fling) cannot give Mewtwo a Mewtwonite X or remove a Mewtwonite X from Mewtwo.
Outside of battle
If held by a Mewtwo, allows it to Mega Evolve into Mega Mewtwo X when it performs a Spectacular Talent during a Pokémon Contest Spectacular while its Trainer has a Key Stone. Mewtwo will remain a Mega Mewtwo X until the Talent Round ends.
Description
Games
|
Description
|
XY
|
One variety of the mysterious Mega Stones. Have Mewtwo hold it, and this stone will enable it to Mega Evolve during battle.
|
ORAS SMUSUM SwShBDSPLA SV
|
One of a variety of mysterious Mega Stones. Have Mewtwo hold it, and this stone will enable it to Mega Evolve during battle.
|
PE
|
One of a variety of mysterious Mega Stones. This stone will enable Mewtwo to Mega Evolve during battle.
|
|
Acquisition
Distribution
Games
|
Event
|
Language/Region
|
Distribution period
|
SM
|
Mewtwo Mega Stones
|
All
|
March 3 to October 31, 2017
|
|
In spin-off gamesIn animation
Pokémon Evolutions
A Mewtwonite X and a Mewtwonite Y appeared in The Discovery, under Green's possession. After discovering that Elaine had managed to catch Mewtwo before her and being defeated in battle by her, Green gave the Mega Stones to her.
In the manga
Pokémon Adventures
In Mewtwo Angered, Blaine was revealed to be in possession of both a Mewtwonite X and a Mewtwonite Y, which he can use to Mega Evolve Mewtwo. After Mewtwo's Mega Evolution into Mega Mewtwo Y was undone while battling Lysandre and Zygarde, Blaine swapped its held Mega Stone, allowing Mewtwo to Mega Evolve into Mega Mewtwo X and keep on fighting. Blaine then explained that due to the unique bond he and Mewtwo share, Mewtwo is able to Mega Evolve more than once per battle.
In other languages
Language
|
Title
|
Chinese
|
Cantonese
|
超夢進化石X Chīumuhng Jeunfa Sehk X
|
Mandarin
|
超夢進化石X / 超梦进化石X Chāomèng Jìnhuà Shí X
|
French
|
Mewtwoïte X
|
German
|
Mewtunit X
|
Italian
|
Mewtwoite X
|
Korean
|
뮤츠나이트X Mewtwonite X
|
Spanish
|
Mewtwoita X
|
|
|
External links