key stone
A Key Stone is a Pokémon item that, when used on a Pokémon holding its respective Mega Stone, causes a Pokémon to undergo Mega Evolution. Key Stones are commonly embedded in an accessory or personal item kept by a Pokémon trainer.
A Key Stone is a Pokémon item that, when used on a Pokémon holding its respective Mega Stone, causes a Pokémon to undergo Mega Evolution. Key Stones are commonly embedded in an accessory or personal item kept by a Pokémon trainer.
