Astral Shift



Mega Evolution (Japanese: メガシンカ Mega Evolution) is a temporary transformation affecting that was introduced in Generation VI. Mega-Evolved Pokémon are identified by having "Mega" in front of their name.

There are 46 species of Pokémon that are capable of Mega Evolution, and there are 48 different Mega Evolutions.

History
Korrina, the Gym Leader of Shalour City, is said to know secrets about Mega Evolution. The Tower of Mastery is also related to Mega Evolution. According to a Kalos legend, the first Pokémon to have been Mega Evolved was a. However, according to Zinnia's grandmother in Pokémon Omega Ruby and Alpha Sapphire, was the first Pokémon to Mega Evolve; Mega Evolution was first discovered by the first meeting of humanity and Rayquaza. Professor Sycamore theorizes that Mega Evolution can only be achieved if there is a strong bond between a Trainer and the Pokémon.

In the games
In order to Mega Evolve, most Pokémon must be holding their appropriate Mega Stone and the Trainer must have a Key Stone. Only does not need a Mega Stone to Mega Evolve; instead, it must know the move.

In battle
In any battle, each Trainer may Mega Evolve a single Pokémon once. Mega Evolution is essentially a free action a Pokémon may make in addition to its normal move, but if a Pokémon will not use a move, it cannot Mega Evolve. Mega Evolution occurs before most actions except switching. A Mega-Evolved Pokémon will only revert to its original state if it faints or the battle ends; if it is switched out, it will remain Mega Evolved.

A Pokémon cannot Mega Evolve if it is being held in the airborne phase of. Neither volatile nor non-volatile status conditions such as paralysis, sleep, and infatuation will have any effect over a Pokémon's ability to Mega Evolve, even if they result in the Pokémon not being able to move that turn.

Mega Stones are not affected by most moves or Abilities. If they would move a Mega Stone to or from a Pokémon that could use it to Mega Evolve, the moves, , , , , and will fail and the Abilities ,  and  will not activate. The move cannot remove a Mega Stone from a Pokémon that can use it to Mega Evolve, and Knock Off's power will not be increased since it cannot remove the item. The moves and  and the Ability  will not prevent a Pokémon from using its respective Mega Stone to Mega Evolve.

Changes in a Pokémon's Ability will take place immediately. A that normally has  will not gain a boost in Speed at the end of the turn it Mega Evolves, but if it uses a biting move such as  that turn, it will be boosted by, its Ability as Mega Sharpedo.

Generation VI
In Generation VI, performing Mega Evolution will not alter the turn order. A Pokémon with a lower Speed than their opponent will still go after them on the one turn the Mega Evolution occurs, even if their Mega Evolution increases Speed and would otherwise cause them to go first. The opposite is also true for Pokémon who lose Speed from Mega Evolution, such as. However, turn order will be determined normally on every turn afterwards.

Otherwise, stat changes and type changes due to Mega Evolution take effect immediately and damage calculation proceeds as usual. For example, a Pokémon whose Mega Evolution has a lower base Defense stat takes greater damage from physical moves on the turn it Mega Evolves. Likewise, the move considers the Pokémon's Speed stat after Mega Evolution for damage calculation, not before.

Likewise, even if a Pokémon only has an Ability such as before Mega Evolution, appropriate moves will gain priority. If a Pokémon gains Prankster upon Mega Evolution, appropriate moves will not gain priority.

When the player Mega Evolves a Pokémon for the first time since the save file is accessed, a longer animation than usual will play, showing the player activating the Mega Evolution with his or her Mega Bracelet. On subsequent uses of Mega Evolution, a shorter animation will play, showing only the Pokémon as it Mega Evolves.

Generation VII
In Generation VII, a Pokémon's Speed after Mega Evolution is used to determine turn order, not its Speed before. Likewise, if a Pokémon only has an Ability such as before Mega Evolution, appropriate moves will not gain priority. If a Pokémon gains Prankster upon Mega Evolution, appropriate moves will gain priority.

cannot Mega Evolve if it holds a Z-Crystal.

In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, as the Held item mechanic is not implemented, the player simply needs to have the compatible Mega Stone in their bag to access a Pokémon's Mega Evolution. The player can also manually pick which form Charizard or Mewtwo can become from the move menu.

Outside of battle
In Pokémon Omega Ruby and Alpha Sapphire, Mega Evolution can also occur during the of Pokémon Contest Spectaculars. If the participating Pokémon is holding its corresponding Mega Stone when its appeal causes the audience's excitement to reach its peak, it will Mega Evolve and perform a. The Pokémon will remain Mega Evolved for the remainder of the Talent Round.

In Pokémon Omega Ruby and Alpha Sapphire, when summoned by the Eon Flute, or  will Mega Evolve before the player mounts it to soar in the sky. It will Mega Evolve even if it is not holding its corresponding Mega Stone, since the Eon Pokémon is summoned even if it is no longer in the player's game.

Effects
A Mega-Evolved Pokémon has different base stats, with the exception of, and can have a different Ability and type from its non-Mega-Evolved form. Every Mega-Evolved Pokémon (except for Mega Alakazam in Generation VI) has a base stat total 100 points higher than that of its base form.

Pokémon Masters
Certain sync pairs, including some Trainers that do not have Key Stones in the core series, Mega Evolve their Pokémon while performing their sync move. After Mega Evolving, their sync partner will benefit from increased stats and sometimes additional moves and passive skills for the rest of the battle. The following sync pairs can Mega Evolve:


 * Agatha and
 * Bugsy and
 * Karen and
 * and
 * Korrina and
 * and
 * Glacia and
 * Cynthia and
 * Steven and
 * and (Mega Charizard X)
 * Sabrina and Alakazam
 * Wally and Gallade

Although Zinnia holds a Key Stone, her sync partner does not Mega Evolve with its sync move.

Pokémon Picross
Once a player purchases a Mega Pencil from Professor Tetra for 500 Picrites, puzzles for Mega Evolutions can be solved. Furthermore, murals can be solved one tile at a time to display and 's Primal Reversions.

Only one Mega Evolution can be set at one time, and they cannot be brought alongside their normal forms. Their skills are higher ranked than their normal counterpart, and they can be used on larger puzzles.

Pokémon Rumble World
The player gains the ability to Mega Evolve their Pokémon after completing the challenge "Raid of the Mighty General", then receiving the Special Stone Shop and a Mega Key from the rewards section of the ordinary shop. Mega Stones for currently owned Pokémon can be bought and immediately attached to its corresponding Pokémon using the Special Stone Shop. The first Mega Stone of the player's choice is free (unless either the Red or Blue Orb is chosen instead) and every one after it costs 5 Poké Diamonds. During battle, Mega Evolution can performed by tapping the Mega Evolution button using a Pokémon equipped with a Mega Stone in battle. Mega Evolution can be used again on any Pokémon in the same battle, unlike in the main games.

Mega-Evolved Pokémon revert after a completed trip, or when they are defeated or switched out. Mega Evolving will send out a shockwave that damages enemy Pokémon. This shockwave is capable of defeating and tipping over opposing Pokémon. Additionally, it also resets any negative status conditions or status changes the Pokémon had before Mega Evolving.

Pokémon Shuffle
Before a Pokémon's Mega Evolution can be used in Pokémon Shuffle, its respective Mega Stone must be obtained (or in 's case, the Meteorite), typically either by defeating its Mega-Evolved form in a battle at the end of each  or as a prize for completing a Competitive Stage or reaching a certain point in an Escalation Battle.

The Pokémon placed in the first position (furthest to the left) when selecting will Mega Evolve after the player fills the Mega Gauge by matching the Pokémon being Mega Evolved or matching Pokémon with the Mega Boost(+) Skills who are of the same type as the Pokémon being Mega Evolved. The size of the Mega Gauge depends on the Pokémon being Mega Evolved, with each Pokémon requiring different numbers of icons to be matched to fill its gauge. The Mega Effects for each Mega form vary between Pokémon, replacing the Pokémon's Skill for the remainder of the battle.

Pokémon Super Mystery Dungeon
Mega Evolution allows Pokémon to become more powerful, attack multiple enemies, and break down walls. To achieve Mega Evolution, the player must find an Awakening Emera in a Dungeon. These Emeras can be attached to a Looplet of a Pokémon that can Mega Evolve, causing it to Mega Evolve immediately. A Looplet attached with an Awakening emera will have a rainbow glow. Should it be given to or, their Mega Evolution will be chosen randomly.

A bar will appear above the Mega-Evolved Pokémon after it transforms and will slowly start to fill up. As long as the bar is present, the Mega-Evolved Pokémon will keep their form even when moving to the next floor. Once the bar is filled, the Mega-Evolved Pokémon will go into. In Berserk mode, the Pokémon will move around and use a powerful attack on any Pokémon surrounding it, friend and foe alike. This will go away after a while, and the Pokémon will revert to normal. When Mega Evolved, its regular attack will get a huge boost in power and range, destroy walls, and reveal purple sparkling spots on the floor which can be picked up for an item.

Attaching an Awakening Emera to a Pokémon that cannot Mega Evolve increases its stats by a lot and give it different boosts. Pokémon that cannot Mega Evolve with an Awakening Emera attached will not go into Berserk mode.

Awakening Emeras are hard to find and appear randomly in dungeons; like other Emeras, they will disappear if they are not reached in time.

Pokkén Tournament
,, , , , , , , , , and Shadow Mewtwo are able to Mega Evolve through Synergy Burst, with Charizard and both of the Mewtwo Mega Evolving into their X forms. Mega Evolution can be triggered whenever a Pokémon capable of it has its Synergy Gauge filled up to the max during a battle. The Mega-Evolved Pokémon will revert to its regular form once it has used up all of its Synergy power.

In addition, every time when Shadow Mewtwo is fought against in the game's story mode, it will Mega Evolve before the battle begins and stay in this state for the entire fight.

On the Dragon's Nest battle stage, Mega appears in the form of both an enormous statue alongside the battle arena and a drawing on the ground of the battle arena. On the Old Ferrum Town (Winter) battle stage, Mega appears in the form of a giant snow sculpture. Mega Rayquaza itself is also a Support Pokémon available as part of the Pokkén Tournament DX Battle Pack.



Super Smash Bros. for Nintendo 3DS/Wii U
and 's Final Smashes are both Mega Evolution, which transforms them into Mega Charizard X and Mega Lucario, respectively. This Mega Evolution acts as a temporary power-up for the duration of the Final Smash.

's Final Smash is, which has it Mega Evolve into Mega Mewtwo Y then use Psystrike.

Mega Venusaur and Mega Blastoise appear as trophies in Super Smash Bros. for Nintendo 3DS. Mega, Mega , Mega , Mega , Mega , Mega X, Mega Mewtwo Y, and Mega  X appear as trophies in Super Smash Bros. for Wii U.

Description

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Super Smash Bros. Ultimate
Mewtwo retains its Final Smash Psystrike from Super Smash Bros. for Nintendo 3DS/Wii U, which still causes it to Mega Evolve into Mega Mewtwo Y.

Lucario's Final Smash is Aura Storm, which has it Mega Evolve into Mega Lucario then use Aura Storm.

Mega Charizard X, Mega Kangaskhan, Mega Mewtwo Y, Mega Lucario, and Mega appear as s.

In the main series
Multiple Mega Evolutions have been featured in the :


 * The first Mega Evolution in the anime was featured in Mewtwo — Prologue to Awakening, where was shown to be capable of changing between its regular form and Mega Mewtwo Y, in which its speed was dramatically boosted, being capable of moving faster than the blink of an eye. The same Mewtwo also played a major role in Genesect and the Legend Awakened, once again demonstrating its Mega Evolution capabilities. Unlike in the, this Mewtwo seemed to be capable of Mega Evolving without the use of a Mega Stone. However, because the concept of Mega Evolution had not been announced at the time of the movie's release, this transformation remains unnamed in the movie. Some Japanese promotional material for the movie as well as its  referred to it as Mewtwo's Awakened Form (覚醒した姿).
 * The first Mega Evolution in the main series was featured in Kalos, Where Dreams and Adventures Begin!, where saw a Mega . In the next episode, it was revealed to belong to a masked hero called the Blaziken Mask, saving Ash from a free fall from the Prism Tower. It has since been seen helping Ash and  on numerous occasions.
 * A Mega and a Mega  X appeared as silhouettes in Lumiose City Pursuit! while  told Ash,, and  about the concept of Mega Evolution.
 * In Mega Evolution Special I, a named Alain was featured traveling across the Kalos region with his Mega  X, challenging other Mega Evolution Trainers. During the episode, Alain battled Astrid's Mega  and Remo's Mega, and was victorious in both battles. Later in the special, he even faced the Elite Four member Siebold and his Mega , but the powerful  Pokémon proved to be too much for Charizard, causing Alain to lose the battle.
 * All known Mega Evolutions released at the time were also featured during the intro of the aforementioned special episode.
 * Diantha's Mega first appeared in The Bonds of Evolution!, using its Mega Evolution powers to break free from 's binds.
 * has a that can Mega Evolve, and so does her grandfather Gurkinn, as shown in The Aura Storm!. In Origins of Mega Evolution!, it was shown in a flashback how one of Gurkinn's ancestors discovered a Key Stone, while his Lucario discovered a Lucarionite, leading to the first known Mega Evolution.
 * In Calling from Beyond the Aura!, Korrina told Ash and his friends about a Trainer she had once met who had used a Mega Ampharos.
 * A Trainer named Mabel and her Mega appeared in The Bonds of Mega Evolution!.
 * Mega Evolved in Diancie and the Cocoon of Destruction in order to protect the Allearth Forest from and restore the Diamond Domain by creating a new Heart Diamond. At the end of the movie, it was shown that a diamond Diancie had created and given to  earlier caused it to Mega Evolve, acting as a Key Stone.
 * During the intro of Diancie and the Cocoon of Destruction, Wikstrom is seen Mega Evolving his in a battle against Diantha and her Mega Gardevoir.
 * Steven Stone's Mega  appeared in Mega Evolution Special II, as well as Mega . Both reappeared in Mega Evolution Special III.
 * The intro of the aforementioned special episode also featured all newly revealed Mega Evolutions.
 * A Mega appeared in XY051 as part of Mairin's Mega Evolution Journal.
 * At the end of Mega Evolution Special III, Alain was seen battling a Trainer with a Mega.
 * Professor Sycamore's Garchomp achieved Mega Evolution for the first time and Mega Evolved into a Mega Garchomp in Garchomp's Mega Bond!.
 * The, , and Rayquaza that  summoned in Hoopa and the Clash of Ages all Mega Evolved during the movie. Much like the Mewtwo from the sixteenth movie, they were able to Mega Evolve without a Key Stone or their respective Mega Stones.
 * In Mega Evolution Special IV, Alain battled ten Mega-Evolved Pokémon and their Trainers in a row, including Mega, Mega , Mega , Mega Scizor, Mega Ampharos, Mega , and Mega . The final Trainer of the row was the Elite Four member Malva, who used a Mega . At the end of the episode, Alain was also seen battling a Trainer with a Mega.
 * A Mega appeared in A Giga Battle with Mega Results!, under the ownership of a Nurse Joy.
 * In A Real Icebreaker!, Wulfric Mega Evolved his into Mega Abomasnow to fight against Ash's Greninja during their Gym battle.
 * A Mega Alakazam, Mega, Mega , Mega , Shiny Mega , Shiny Mega Gardevoir, and several other Mega-Evolved Pokémon appeared in Volcanion and the Mechanical Marvel. With the exception of Kimia's Shiny Mega Gardevoir, they were forcibly Mega Evolved by a special device known as Mega Wave, which was being used by Alva and his minions Levi and Cherie. A Mega Wave evolved Mega and Mega  were also loaned to.
 * A Mega Y owned by  appeared in A League of His Own! during his Lumiose Conference battle against Alain.
 * A Mega owned by Sawyer appeared in Valuable Experience for All! during his quarterfinal battle in Lumiose Conference against.
 * Lysandre's Mega  debuted in Coming Apart at the Dreams!, where it battled  and Alain's Charizard. It managed to knock out four of Ash's Pokémon, but was finally defeated in Rocking Kalos Defenses!.
 * A Mega Gyarados appeared in a fantasy in Big Sky, Small Fry!, where joked about being able to catch one at Brooklet Hill.
 * Brock's Steelix and Misty's Gyarados Mega Evolved into Mega and Mega  in When Regions Collide!, while battling Kiawe's Turtonator and Ash's Pikachu, respectively.
 * Gozu's Mega Evolved into Mega Aggron in The Prism Between Light and Darkness! to battle 's  and 's  and.
 * Ilima's Mega Evolved into Mega Kangaskhan in Battling Besties! to battle Guzma's.

In Pokémon Origins
's was shown Mega Evolving into Mega Charizard X in File 4: Charizard during Red's battle against, thanks to the Charizardite X and Key Stone given to him by Mr. Fuji in an earlier episode.

In Pokémon Generations
A Mega appeared in The Scoop, under the ownership of a Trainer, who used it to destroy a giant meteor. Afterwards, it battled against a that had emerged from the destroyed meteor.

In the Pokémon Omega Ruby and Alpha Sapphire Animated Trailer
All of the Mega Evolutions debuting in were showcased in the Pokémon Omega Ruby and Pokémon Alpha Sapphire Animated Trailer.

In the Pokémon - The Legend of the Dragon King manga
In Pokémon - The Legend of the Dragon King, several main characters' Pokémon are capable of Mega Evolution, including 's, 's , and Taichi's.

In the Pokémon Adventures manga
Mega Evolution was first presented in Pokémon Adventures in the. At first, it was portrayed as a relatively unknown phenomenon, known only to Gurkinn and his Successors. Since then, it became apparent that Team Flare were also after the power of Mega Evolution, with one member even compiling a list of Mega Stones that they discovered. Simultaneous Mega Evolutions can also be accomplished by a Trainer, as long as they have a Key Stone for each Pokémon they are Mega Evolving. However, doing so will cause severe mental stress on the Trainer, and they will be unable to focus on anything other than a single target until the Mega Evolution is undone.
 * When Team Flare members Aliana and Mable arrived in Vaniville Town in order to steal 's Mega Ring, the commotion caused X's baby, Li'l Kanga, to react with X's Mega Ring and Mega Evolve into Mega Kangaskhan, easily defeating Aliana's and Mable's.
 * When X and his friends were attacked by Team Flare in Santalune City, Korrina arrived and Mega Evolved her into Mega Lucario to assist them.
 * In Lysandre Café, Diantha had her Mega Evolve into Mega Gardevoir to make Lysandre back off from attacking, , and.
 * The Mega Evolutions of, , , and  made cameos when Gurkinn explained Mega Evolution to Essentia during her raid on the Tower of Mastery. In the subsequent chapter, Gurkinn Mega Evolved his.
 * During Korrina's succession ceremony, three Successors demonstrated Mega Evolution to her by Mega Evolving their, and  respectively.
 * While visiting Lumiose City, X met an, which led him to a Manectite, evolving into in the process. Later Manectric joins X's team, Mega Evolving into Mega Manectric while facing a.
 * During a battle against Team Flare, Gurkinn's protected X from Celosia's . It helped battle against Team Flare to stop them from capturing  while in tree form. It was later given it to X, at which point he nicknamed it Garma. Garma has a Gengarite, which allows X to Mega Evolve it into Mega Gengar.
 * While confronting Essentia, X's Rute and Y's Solsol are given their respective Mega Stones, allowing them to Mega Evolve into Mega Pinsir and Mega Absol respectively.
 * Both X's Salamè and Blue's Charizard Mega Evolved into Mega Charizard X and Mega Charizard Y respectively, after defeating Xerosic's Pokémon.
 * After reuniting with Blaine, gained the ability to Mega Evolve into both Mega Mewtwo X and Y. Due to their bond, Mewtwo is able to Mega Evolve more than once per battle.

In the, the role of Mega Evolution was diminished but its accessibility continued to be confined to a selected number of Trainers.
 * In Omega Alpha Adventure 1,, , and were shown learning how to Mega Evolve their Pokémon from Ultima. Sapphire and Emerald were seen mastering it in Omega Alpha Adventure 3, where they Mega Evolved their respective starter Pokémon.
 * In Omega Alpha Adventure 2, Ruby was able to successfully Mega Evolve Latios into Mega Latios, allowing them to soar into the sky. He soon arrived at the Sky Pillar, where he met and battled Zinnia, who used her Mega against Mega Latios.
 * In Omega Alpha Adventure 6, Mega Evolved his  into Mega Metagross with his Mega Stickpin.
 * In Omega Alpha Adventure 7, Jinga of the Draconids Mega Evolved his Slowbro into Mega Slowbro in his battle against Ruby.
 * In Omega Alpha Adventure 8, Ruby Mega Evolved Mumu into Mega Swampert.
 * In Omega Alpha Adventure 11, Maxie and Archie used their Mega Glasses and Mega Anchor to Mega Evolve their Camerupt and Sharpedo into Mega and Mega  respectively. In retaliation,  and  Mega Evolved Saur and Blasty into Mega  and Mega  respectively to battle them.
 * In Omega Alpha Adventure 15, footage of Rayquaza Mega Evolving was seen.
 * In Omega Alpha Adventure 20, Mega Evolved his  as part of his explanation that the meteoroid headed for Hoenn may be housing a Pokémon inside of it, since Mega Evolution is only supposed to work within a battle. Later, Sapphire and Ruby Mega Evolved Kirly and Rara into Mega Gallade and Mega Gardevoir respectively during a brief battle against each other.
 * In Omega Alpha Adventure 21, Ruby and Sapphire Mega Evolved in order to have it destroy Grand Meteor Delta. Later in the Pokémon Contest Spectacular, Ruby is able to Mega Evolve  for his and Sapphire's performance.

In the TCG
Mega Evolution is mainly featured in the Pokémon Trading Card Game as TCG Pokémon-EX. They were added as a new mechanic to the game in the TCG XY era as an evolution of Pokémon-EX cards. Mega Evolving a Pokémon immediately ends a player's turn, unless that Pokémon has its specific Spirit Link Pokémon Tool attached to it.

The following is a list of cards mentioning or featuring Mega Evolved Pokémon in the Trading Card Game.

Trivia

 * There is at least one Mega-Evolved Pokémon of every type: Psychic has the most (with ten), while Ice and Electric have the fewest (with two each).
 * Electric is the only type for which no new Mega Evolution was introduced in Pokémon Omega Ruby and Alpha Sapphire.
 * and are the only Pokémon capable of Mega Evolution that are in the same evolutionary family.
 * Only Pokémon which cannot evolve further are capable of Mega Evolution.
 * is the only Fossil Pokémon capable of Mega Evolution.
 * is the only trio master capable of Mega Evolution.
 * is the only Mythical Pokémon capable of Mega Evolution.
 * With, Mega Mewtwo X, Mega Mewtwo Y, and Mega Rayquaza have the highest base stat totals of any obtainable Pokémon. Eternamax has the highest base stat total of all Pokémon at 1125, but cannot be used by the player.
 * In addition, Mega Mewtwo Y has the highest base Special Attack of all Pokémon at 194, and Mega Mewtwo X has the highest base Attack of all Pokémon at 190. Mega Mewtwo X also has the highest base stat increase of all Mega Evolutions, its Attack stat being boosted by 80 upon the process.
 * is the only dual-type Pokémon to become single-type upon Mega Evolving, going from -type to pure.
 * The only Pokémon with multiple Mega Evolutions are and, which have two each. In both cases, the first ones to be revealed were the Y versions.
 * In addition, both of their Y Mega Evolutions kept their original type(s), while both of their X Mega Evolutions changed or added their secondary type.
 * Also, in both cases, the X Mega Evolution is more physically-oriented (with a higher Attack and/or Defense), while the Y Mega Evolution is more specially-oriented (with a higher Special Attack and/or Special Defense).
 * Rayquaza is the only Pokémon that does not require a Mega Stone to Mega Evolve in the core series games, instead being required to know.
 * This makes Rayquaza the only Pokémon that can have a different held item while Mega Evolved, since Mega Stones cannot be taken off their proper holder during battle.
 * In Pokémon Shuffle Rayquaza needs the player to get the Meteorite for it to Mega Evolve.
 * Mega and Mega  are programmed into ; as a result, they are not banned by the Kalos rules from battles, and their Mega Stones are not banned from trades between Omega Ruby or Alpha Sapphire and X or Y, despite being otherwise unavailable in those games.
 * The Japanese and Korean logos for Pokémon X and Y include the Mega Evolution sigil.
 * In an interview with the Nintendo Dream magazine, Ken Sugimori stated that was intended to get a Mega Evolution in Pokémon X and Y, but the idea was dropped  due to him experiencing artist's block.
 * In the Pokémon X and Y demo, the message "An immense rare power has risen in Mewtwo" would be displayed before Mega Evolving. In the final game, the message displayed is "'s  is reacting to 's !" Additionally, Mega Mewtwo Y is referred to as simply Mega Mewtwo.
 * is the only Pokemon to have both a Mega Evolved form and a regional form.