Back to Items 
Effect / Mechanics
Evolves an Eelektrik into Eelektross, an Eevee into Jolteon, or a Pikachu into Raichu.
Source: PokeAPI
In-game description
"A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern."
Properties
Underground
Fling Power
30 Power
Power of the move "Fling" when using this item.