NPC Trainers in higher-leveled Gyms may occasionally use Pokémon that can Mega Evolve. NPC Trainers do not require a Mega Bracelet to use Mega Evolution, but still require a Mega Stone to be held by a compatible Pokémon. This will also prohibit the use of any Pokémon that are holding their Mega Stones.

In-battle Mega Evolution can be prohibited by enabling the Mega Clause battle rule.

Only one Pokémon per party may Mega Evolve during a battle, with others automatically getting locked out. The Pokémon will revert back to its base form if the battle ends or the Pokémon faints. Mega Evolution persists throughout the battle, even when the Mega Evolved Pokémon switches out. Please note that Speed updates on the next turn turn order is decided before Mega Evolution. If this option is selected, the Pokémon will Mega Evolve immediately, after which it will be able to pick a move like normal. Please note that the player must be wearing the Mega Bracelet Mega Evolution will be unavailable if is it not equipped.īefore the Pokémon uses a move, there will be an option to Mega Evolve. Once all requirements for Mega Evolution are met, a Pokémon can be Mega Evolved whenever it is holding its Mega Stone.

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