

While Mega Evolution is also available in the Generation VII games, the feature is no longer present in the core series as of Pokémon Sword and Shield, due to the lack of Key Stones and Mega Stones, although it still appears in some spin-offs like Pokémon GO and Pokémon Masters EX.

In the core series, Mega Evolution requires the player to hold a Key Stone and a Pokémon capable of Mega Evolution holding its compatible Mega Stone (except in Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, in which the player simply needs to have the Mega Stone in their bag). Mega Evolution (Japanese: メガシンカ Mega Evolution) is a temporary transformation introduced in Generation VI that affects certain Pokémon. Pokémon Brilliant Diamond and Shining Pearlīlaziken Mega Evolving into Mega Blaziken.
