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Mega Evolution

By
Vincent Lau

(1 of 2) Before

Before (left), After (right)

First introduced in Pokémon X and Y, certain Pokémon are capable of Mega Evolving during battle. Similar to normal evolution, they can benefit from increased stats and even a different Type combination. However, Mega Evolution isn’t permanent and the effects disappear after the battle–or if the Pokémon is KO’d.

To Mega Evolve, you need two things. First, you need a Key Stone, which is given to you before you challenge the eighth Gym. Next, you need the corresponding Mega Stone for your Pokémon. You get the Mega Stones for the original Kanto starters at the same time as the Key Stone, while the rest are relegated to the post-game.

If a Pokémon is capable of Mega Evolving–and once the conditions have been met, you can Mega Evolve by selecting the command to the left of a Pokémon’s moves, and then choosing a move as normal. Afterwards, the Pokémon will Mega Evolve as the turn begins, and use their move when it’s their turn.

Applicable Pokémon

Pokémon Mega Evolution Benefits Mega Stone Location
"Venusaur" IconVenusaur Increased offence and bulk. From Blue before the eighth Gym.
"Charizard" IconCharizard X: Gains Dragon-type and increased offence. Y: Increased special stats. From Blue before the eighth Gym.
"Blastoise" IconBlastoise Increased offence and bulk. From Blue before the eighth Gym.
"Beedrill" IconBeedrill Massively increased Attack and Speed. Indigo Plateau when Champion.
"Pidgeot" IconPidgeot Massively increased Special Attack. Indigo Plateau when Champion.
"Alakazam" IconAlakazam Increased Special Attack and Speed. Indigo Plateau when Champion.
"Slowbro" IconSlowbro Massively increased Defence. Indigo Plateau when Champion.
"Gengar" IconGengar Increased Special Attack and Speed. Indigo Plateau when Champion.
"Kangaskhan" IconKangaskhan Increased offence and bulk. Indigo Plateau when Champion.
"Pinsir" IconPinsir Gains Flying-type and increased Attack and Speed. Indigo Plateau when Champion.
"Gyarados" IconGyarados Flying replaced with Dark and gains Attack and bulk. Indigo Plateau when Champion.
"Aerodactyl" IconAerodactyl Increased Attack and Speed. Indigo Plateau when Champion.
"Mewtwo" IconMewtwo X: Gains Fighting-type and massively increased Attack. Y: Massively increased Special Attack. From Green in Cerulean Cave.

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Guide Information

  • Publisher
    Pokemon Company International
  • Platforms,
    Switch
  • Genre
    RPG
  • Guide Release
    23 November 2018
  • Last Updated
    19 December 2020
    Version History
  • Guide Author
    Vincent Lau

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Welcome to our strategy guide for Pokemon: Let’s Go!

  • A complete walkthrough with strategies to defeat all the Kanto Gym Leaders and conquer the Pokémon League.
  • Encounter tables for all the wild Pokémon, including the rare Pokémon with undisclosed habitats in the Pokédex.
  • Explanations of all the gameplay mechanics for both beginner trainers and Pokémon Masters.
  • Where to find all the Master Trainers and hidden battles after beating the game.
  • A handy mini-Pokédex containing the key details for all 153 obtainable Pokémon and where to find them.

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