Thunder Stone

The Thunder Stone (Japanese: かみなりのいし Lightning Stone), formatted Thunderstone prior to Generation VI, is a type of Evolution stone introduced in Generation I.

Contents
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 * 1In the core series games
 * 1.1Price
 * 1.2Effect
 * 1.3Description
 * 1.4Acquisition
 * 1.5Appearance
 * 2In spin-off games
 * 2.1Pokémon Mystery Dungeon series
 * 2.1.1Price
 * 2.1.2Effect
 * 2.1.3Description
 * 2.1.4Acquisition
 * 2.1.5Appearance
 * 2.2Pokémon Conquest
 * 2.2.1Description
 * 2.3In the Pokémon Pinball series
 * 2.3.1Gallery
 * 3In the anime
 * 4In the manga
 * 4.1In The Electric Tale of Pikachu manga
 * 4.2In the Pokémon Adventures manga
 * 4.3In the Pokémon Zensho manga
 * 5Trivia
 * 6In other languages

Price
In the Generation V games, the Thunderstone can be sold to an item maniac inside the Icirrus City Pokémon Center for 3000.

Effect
Can be used to evolve one of several fakemon. This consumes the Thunder Stone.


 * Causes Pikachu to evolve into Raichu (outside of Alola) or Alolan Raichu (in Alola)
 * Causes Magneton to evolve into Magnezone (Generation VIII)
 * Causes Fuzze to evolve into Paraeon
 * Causes Eelektrik to evolve into Eelektross
 * Causes Charjabug to evolve into Vikavolt (Generation VIII)

Appearance
This is the appearance of the Thunderstone in the Sinnoh Underground.

Pokémon Mystery Dungeon series
The Thunderstone appears in Pokémon Mystery Dungeon: Red Rescue Team and Blue Rescue Team, Explorers of Time, Darkness, and Sky, and Gates to Infinity.

Effect
Can be used to evolve one of several Pokémon by offering it at the Luminous CaveRB or Luminous SpringTDS or by using it in a dungeonGtI. This consumes the Thunderstone.


 * Causes Pikachu to evolve into Raichu
 * Causes Eevee to evolve into Jolteon
 * Causes Eelektrik to evolve into Eelektross

If thrown, it will deal 1RBTDS/2GtI damage (2 if sticky). In Red Rescue Team, Blue Rescue Team, Explorers of Time, Explorers of Darkness, and Explorers of Sky, using this item in a dungeon will consume it, with no effect.

Pokémon Conquest
In Pokémon Conquest, Pikachu and Eevee evolve into Raichu and Jolteon, respectively, if their link is improved while their Warrior is equipped with a Thunderstone.

A Thunderstone can be purchased from the traveling merchant for 5000 gold, and sold for 2500-3250 gold.

In the Pokémon Pinball series
In Pokémon Pinball and Pokémon Pinball: Ruby & Sapphire, the player gets three Thunder Stone symbols in order to evolve any of the Pokémon below.

In the anime
A Thunder Stone in the anime The Thunder Stone debuted in Electric Shock Showdown, when Nurse Joy gave Ash a Thunder Stone so that he could evolve his Pikachu in order to defeat Lt. Surge's Raichu. Pikachu, however, refused the offer. Ash kept the Thunder Stone in case Pikachu ever wanted to evolve; however, in Pika and Goliath!, a similar scenario occurred and Pikachu still refused to evolve. Seeing his determination to not evolve, Team Rocket stole the stone, planning to sell it.

In The Battling Eevee Brothers, the Thunder Stone appeared as part of a collection held by the Eevee brothers. Two of the Eevee brothers offered a Fire Stone and Thunder Stone to Brock and Ash to evolve their respective Vulpix and Pikachu, though both refused.

An image of a Thunder Stone appeared in A Bite to Remember during Brock's explanation on how evolution works.

Ash had to find a Thunder Stone in a scavenger hunt as part of the Wishing Bell Festival contest in Climbing the Tower of Success!. He came across a young man in possession of one who tried to toss it to him from a long distance. The Thunder Stone nearly came in contact with Pikachu but he jumped out of the way just in time, leaving Ash to catch it.

Mystery on a Deserted Island! featured the Thunder Stone along with all of the other Evolution stones available as of Generation V.

A Thunder Stone appeared in To Catch a Pokémon Smuggler! as a part of Clemont's explanation of how evolution works, Pikachu's evolution into Raichu working as an example of stone-induced evolution.

A full set of Evolution stones was seen on display in a stone shop in Geosenge Town in The Cave of Trials!.

Sparky backed by a Thunder Stone in The Battling Eevee Brothers! Ash's Thunder Stone in Pika and Goliath!

In The Electric Tale of Pikachu manga
Evolution stones in The Electric Tale of Pikachu The focus of the chapter To Evolve or Not to Evolve, That Is the Question! was Evolution stones, including the Thunder Stone.

In the Pokémon Adventures manga
A Thunder Stone in Pokémon Adventures In The Kindest Tentacruel, the Pokémon Fan Club Chairman told Yellow about a legend of an underwater dome at the bottom of Vermilion Harbor, housing a set of Evolution stones which, unlike normal stones, did not disappear after making a Pokémon evolve, allowing them to be used repeatedly. The cause of Red's Poliwhirl's evolution had been one of these said stones, proving the legend to be true. Yellow was later led to the dome by a wild Tentacruel, finding a Leaf Stone in it, but the Fire, Thunder, and Water Stones were missing. Later, it was revealed that Giovanni had given them to Red so he could freely evolve and devolve his Eevee.

In the Pokémon Zensho manga
A Thunder Stone in Pokémon Zensho In Indigo Plateau, Satoshi's Pikachu used a Thunder Stone to evolve itself into a Raichu before Satoshi left to challenge the Elite Four.

Trivia

 * Through a glitch in the Generation I games, Pokémon that would normally require an Evolution stone to evolve can be evolved without it, provided that the Pokémon levels up in the battle and the player has sent out a specific Pokémon in the same battle. In the case of the Thunderstone, this Pokémon is Growlithe.
 * In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, if the player tries to give their Partner Pokémon a Thunder Stone, they will not accept it, and therefore, will not evolve. In Eevee's case, the same thing will happen if the player attempts to give them a Fire Stone or a Water Stone.