Description
A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern.
Effects
Used on a party Pokémon : Evolves an []{pokemon:eelektrik} into []{pokemon:eelektross}, an []{pokemon:eevee} into []{pokemon:jolteon}, or a []{pokemon:pikachu} into []{pokemon:raichu}.
