Gyaradosite
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The Gyaradosite (Japanese: ギャラドスナイト Gyaradosnite) is a type of held item introduced in Generation VI. It is the Mega Stone that allows Gyarados to Mega Evolve into Mega Gyarados.
In the core series games
Price
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Effect
In battle
If held by a Gyarados (or is present in the player's Bag)PE, allows it to Mega Evolve into Mega Gyarados if its Trainer has a Key Stone. Each Trainer can only Mega Evolve one Pokémon per battle.
Unaffected by item negating effects (such as Embargo and Klutz). Item manipulating effects (such as Trick and Fling) cannot give Gyarados a Gyaradosite or remove a Gyaradosite from Gyarados.
Outside of battle
If held by a Gyarados, allows it to Mega Evolve into Mega Gyarados when it performs a Spectacular Talent during a Pokémon Contest Spectacular while its Trainer has a Key Stone. Gyarados will remain a Mega Gyarados until the Talent Round ends.
Description
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Acquisition
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In spin-off games
Pokémon Shuffle
In Pokémon Shuffle, the Gyaradosite allows the player to Mega Evolve Gyarados and Shiny Gyarados.
The player can obtain the Gyaradosite by completing the Competitive Stage available in Week 9 of the event rotation.
The Gyaradosite was also available as a prize during the Mega Gyarados Competitive Stage. This Competitive Stage ran on both the Nintendo 3DS and Mobile versions from June 28 to July 5, 2016; January 31 to February 7, 2017; and June 27 to July 4, 2017.
The Gyaradosite enables the following Mega Evolutions:
Stone | Pokémon | Type | Effect | Gauge | Max ![]() | ||
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Mega Gyarados | Water | Erases Pokémon on a randomized jagged line vertically. Actually erases two random jagged lines of Pokémon vertically. These lines may cross. |
18 | 12 |
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Mega Gyarados | Water | Erases all Mega Gyarados in the puzzle area. | 19 | 10 |
In the anime

Alain discovered an uncut Gyaradosite in Mega Evolution Special I.
A Gyaradosite physically debuted in Coming Apart at the Dreams!, worn by Lysandre's Shiny Gyarados around its neck in a holder similar to the one Alain's Charizard keeps its Charizardite X in. It is unknown whether this Gyaradosite is the same one Alain had discovered uncut earlier, or a different one.
Another Gyaradosite appeared in When Regions Collide!, where it was held by Misty's Gyarados. It didn't appear to be equipped on Gyarados, but rather, it appeared on its head crest right before Mega Evolving.
A Gyaradosite appeared during Gurkinn's explanation about Mega Evolution in An Adventure of Mega Proportions!.
In the manga

Pokémon Adventures
X & Y arc
Lysandre owns a Gyaradosite, which first appeared in Chespin Sows the Seeds of Change. After Celosia stole Korrina's Key Stone, it was fashioned into a Mega Ring for Lysandre, allowing him to use it and the Gyaradosite to Mega Evolve his Gyarados. Eventually, X stole the Key Stone back from him.
In other languages
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External links
- On Smogon Itemdex:
- Generation VI – VII – VIII – IX
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This item article is part of Project ItemDex, a Bulbapedia project that aims to write comprehensive articles on all items. |