Thunder-Stone 
Thunder Stone is an evolution item in the Pokémon series that induces evolution for certain Electric-type Pokémon. Upon using the Thunder Stone, specific Pokémon species will evolve instantaneously. Here are some notable Pokémon that evolve using the Thunder Stone:
- Pikachu to Raichu
- Eevee to Jolteon
- Magneton to Magnezone (only in certain games)
- Eelektrik to Eelektross
Effects and Usage: - The primary function of the Thunder Stone is to trigger evolution. Unlike some methods of evolution that require leveling up, trading, or friendship, the use of a Thunder Stone is immediate and can be done at any time. - Once a Pokémon evolves with a Thunder Stone, the evolution is permanent, and its stats, abilities, and often its move pool will change to reflect its new evolved form. - Thunder Stone evolutions cannot be reversed or undone.
**Availability and Locations:
Attribute
Category:
evolutionCost:
3000
Effect:
- Used on a party Pokémon : Evolves an eelektrik into eelektross, an eevee into jolteon, or a pikachu into raichu.
Flavor Texts:
- ruby-sapphire: Makes certain species of POKéMON evolve.
- emerald: Makes certain species of POKéMON evolve.
- firered-leafgreen: A peculiar stone that makes certain species of POKéMON evolve. It has a thunderbolt pattern.
- diamond-pearl: A peculiar stone that makes certain species of Pokémon evolve. It has a thunderbolt pattern.
- platinum: A peculiar stone that makes certain species of Pokémon evolve. It has a thunderbolt pattern.
- heartgold-soulsilver: A peculiar stone that makes certain species of Pokémon evolve. It has a thunderbolt pattern.
- black-white: A peculiar stone that makes certain species of Pokémon evolve. It has a thunderbolt pattern.
- black-2-white-2: A peculiar stone that makes certain species of Pokémon evolve. It has a thunderbolt pattern.
- x-y: A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern.
- sun-moon: A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern.
- ultra-sun-ultra-moon: A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern.
- lets-go-pikachu-lets-go-eevee: A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern.
- sword-shield: A peculiar stone that can make certain species of Pokémon evolve. It has a distinct thunderbolt pattern.
Fling Power
30
Game Indices
- generation-iii (Game Index: 96)
- generation-iv (Game Index: 83)
- generation-v (Game Index: 83)
- generation-vi (Game Index: 83)
- generation-vii (Game Index: 83)
- generation-viii (Game Index: 83)