In-game description: A peculiar stone that makes certain species of Pokémon evolve. It has a thunderbolt pattern.
Technical explanation and other notes
Evolves Pikachu into Raichu or Eevee into Jolteon.
Fling: 30 base power. Side effect: No additional effect
This item has a specified location in the following games:
- Electric Shock Showdown: Pikachu refuses to evolve with it
- The Battling Eevee Brothers