Mega Stone

A Mega Stone is a type of held item that allows Pokémon to Mega Evolve.

Mechanics

During battle, the player can use their Key Stone-activating item, the Mega Ring to Mega Evolve a Pokémon before it attacks if it is holding the correct Mega Stone. Mega Stones only affect Pokémon during battles, and Pokémon will revert back to their basic form once the battle has ended or upon fainting. All Pokémon that can undergo Mega Evolution have an equivalent Mega Stone that is named after them, except for Rayquaza, which instead needs to know the move Dragon Ascent to Mega Evolve.

Mega Stones cannot be transferred to or from the correct holder during battle: Thief and Covet do not take the Mega Stone, Knock Off does not remove the Mega Stone, Trick and Switcheroo fail, Fling and Bestow fail, and Symbiosis does not activate. Embargo and Magic Room also cannot prevent the use of Mega Stones to Mega Evolve Pokémon. Mega Stones are not consumed upon use, but only one Pokémon can Mega Evolve per battle.

Availability

Mega Stones can be found numerous ways throughout the player's journey. Mega Stones are also sometimes found on the ground as a hidden item. Unlike the official games, they do not sparkle. Some can only being obtained through certain requirements like defeating a Gym Leader or collecting certain amounts of Flags from Friend Safaris.

Certain Mega Stones available during Mystery Gifts are removed as new Mystery Gifts are made available. These Mega Stones will become available to all players in-game during future updates. Additionally, the starter Mega Stones found inside of the Perfection Base change depending on whether or not the player is playing the game on Purity Mode. Those that are not playing on Purity Mode will be unable to acquire Blastoisinite, Charizardite Y, and Venusaurite without trading with another player.

List of Mega Stones

Altarianite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Altaria to Mega Evolve into Mega Altaria when held during battle.					Locations Show East's Will to the lawyer in Koril Town
Description One variety of the mysterious Mega Stones. Have Altaria hold it, and this stone will enable it to Mega Evolve.

Ampharosite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Ampharos to Mega Evolve into Mega Ampharos when held during battle.					Locations Surf to the northwest and follow the trail in Murk Forest. Can be bought for 15000.
Description One variety of the mysterious Mega Stones. Have Ampharos hold it, and this stone will enable it to Mega Evolve.

Blastoisinite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Blastoise to Mega Evolve into Mega Blastoise when held during battle.					Locations Inside of the Perfection Base if the player chose Squirtle as his or her starter on Purity Mode.
Description One variety of the mysterious Mega Stones. Have Blastoise hold it, and this stone will enable it to Mega Evolve.

Cacturnite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Cacturne to Mega Evolve into Mega Cacturne when held during battle.					Locations Find the Fighting-type guidebook in Utira Library and show it to a Black Belt in Utira Town
Description One variety of the mysterious Mega Stones. Have Cacturne hold it, and this stone will enable it to Mega Evolve.

Charizardite Y   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Charizard to Mega Evolve into Mega Charizard Y when held during battle.					Locations Inside of the Perfection Base if the player chose Charmander as his or her starter on Purity Mode.
Description One variety of the mysterious Mega Stones. Have Charizard hold it, and this stone will enable it to Mega Evolve.

Delta Bisharpite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Bisharp to Mega Evolve into Mega Delta Bisharp when held during battle.					Locations Power Farm (requires Tesseract)
Description One variety of the mysterious Mega Stones. Have Delta Bisharp hold it, and this stone will enable it to Mega Evolve.

Delta Blastoisinite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Blastoise to Mega Evolve into Mega Delta Blastoise when held during battle.					Locations Inside of the Perfection Base if the player chose Delta Squirtle as his or her starter
Description One variety of the mysterious Mega Stones. Have Delta Blastoise hold it, and this stone will enable it to Mega Evolve.

Delta Charizardite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Charizard to Mega Evolve into Mega Delta Charizard when held during battle.					Locations Inside of the Perfection Base if the player chose Delta Charmander as his or her starter
Description One variety of the mysterious Mega Stones. Have Delta Charizard hold it, and this stone will enable it to Mega Evolve.

Delta Galladite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Gallade to Mega Evolve into Mega Delta Gallade when held during battle.					Locations Whirl Islands on the bottom floor, left of where Audrey was fought (requires Tesseract).
Description One variety of the mysterious Mega Stones. Have Delta Gallade hold it, and this stone will enable it to Mega Evolve.

Delta Gardevoirite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Gardevoir to Mega Evolve into Mega Delta Gardevoir when held during battle.					Locations Whirl Islands on the bottom floor, right of where Audrey was fought (requires Tesseract).
Description One variety of the mysterious Mega Stones. Have Delta Gardevoir hold it, and this stone will enable it to Mega Evolve.

Delta Scizorite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Scizor to Mega Evolve into Mega Delta Scizor when held during battle.					Locations Talk to an old man on Route 6 with Delta Scizor in your party
Description One variety of the mysterious Mega Stones. Have Delta Scizor hold it, and this stone will enable it to Mega Evolve.

Delta Venusaurite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Delta Venusaur to Mega Evolve into Mega Delta Venusaur when held during battle.					Locations Inside of the Perfection Base if the player chose Delta Bulbasaur as his or her starter
Description One variety of the mysterious Mega Stones. Have Delta Venusaur hold it, and this stone will enable it to Mega Evolve.

Diancite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Diancie to Mega Evolve into Mega Diancie when held during battle.					Locations Show the Hiker inside the house to the right of the Pokémon center in Roggan Town any Legendary Pokémon
Description One variety of the mysterious Mega Stones. Have Diancie hold it, and this stone will enable it to Mega Evolve.

Eevite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Eevee to Mega Evolve into Mega Eevee when held during battle.					Locations Inside of the Perfection Base if the player chose Eevee as his or her starter
Secondary effect: If held by Eevee, it prevents evolution.
Description One variety of the mysterious Mega Stones. Have Eevee hold it, and this stone will enable it to Mega Evolve.

Feraligatite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Feraligatr to Mega Evolve into Mega Feraligatr when held during battle.					Locations Use Dive at the end of Cyan Cavern
Description One variety of the mysterious Mega Stones. Have Feraligatr hold it, and this stone will enable it to Mega Evolve.

Flygonite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Flygon to Mega Evolve into Mega Flygon when held during battle.					Locations Hidden item in the upper section of Rezzai Desert
Description One variety of the mysterious Mega Stones. Have Flygon hold it, and this stone will enable it to Mega Evolve.

Gengarite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Gengar to Mega Evolve into Mega Gengar when held during battle.					Locations Abandoned Wing of Utira Library (requires Tesseract)
Description One variety of the mysterious Mega Stones. Have Gengar hold it, and this stone will enable it to Mega Evolve.

Girafarigite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Girafarig to Mega Evolve into Mega Girafarig when held during battle.					Locations Low chance to obtain from Poképon in Sonata City
Description One variety of the mysterious Mega Stones. Have Girafarig hold it, and this stone will enable it to Mega Evolve.

Gothitite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Gothitelle to Mega Evolve into Mega Gothitelle when held during battle.					Locations Selene Gym (requires Tesseract)
Description One variety of the mysterious Mega Stones. Have Gothitelle hold it, and this stone will enable it to Mega Evolve.

Marowite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Marowak to Mega Evolve into Mega Marowak when held during battle.					Locations Speak to the guitarist outside of a house in Selene City while Marowak is in the player's party
Description One variety of the mysterious Mega Stones. Have Marowak hold it, and this stone will enable it to Mega Evolve.

Mawilite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Mawile to Mega Evolve into Mega Mawile when held during battle.					Locations Hidden at a wind vane in Nasca Town
Description One variety of the mysterious Mega Stones. Have Mawile hold it, and this stone will enable it to Mega Evolve.

Metagrossite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Metagross to Mega Evolve into Mega Metagross when held during battle.					Locations Kepler Gym (requires Tesseract)
Description One variety of the mysterious Mega Stones. Have Metagross hold it, and this stone will enable it to Mega Evolve.

Pidgeotite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Pidgeot to Mega Evolve into Mega Pidgeot when held during battle.					Locations Talk to Xavier in Helios City after obtaining the Summit Badge
Description One variety of the mysterious Mega Stones. Have Pidgeot hold it, and this stone will enable it to Mega Evolve.

Reuniclite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Reuniclus to Mega Evolve into Mega Reuniclus when held during battle.					Locations Mystery Gift, held by Solosis
Description One variety of the mysterious Mega Stones. Have Reuniclus hold it, and this stone will enable it to Mega Evolve.

Sablenite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Sableye to Mega Evolve into Mega Sableye when held during battle.					Locations Helios Sewers (requires Tesseract)
Description One variety of the mysterious Mega Stones. Have Sableye hold it, and this stone will enable it to Mega Evolve.

Salamencite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Salamence to Mega Evolve into Mega Salamence when held during battle.					Locations Top of Jade Tower (requires Tesseract)
Description One variety of the mysterious Mega Stones. Have Salamence hold it, and this stone will enable it to Mega Evolve.

Shiftrite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Shiftry to Mega Evolve into Mega Shiftry when held during battle.					Locations Previous Mystery Gift (no longer available)
Description One variety of the mysterious Mega Stones. Have Shiftry hold it, and this stone will enable it to Mega Evolve.

Spiritombite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Spiritomb to Mega Evolve into Mega Spiritomb when held during battle.					Locations Talk to the Flag Guy in any Secret Base after collecting 100 Friend Safari flags
Description One variety of the mysterious Mega Stones. Have Spiritomb hold it, and this stone will enable it to Mega Evolve.

Stunfiskite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Stunfisk to Mega Evolve into Mega Stunfisk when held during battle.					Locations Talk to the Flag Guy in any Secret Base after collecting 50 Friend Safari flags
Description One variety of the mysterious Mega Stones. Have Stunfisk hold it, and this stone will enable it to Mega Evolve.

Typhlosionite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Typhlosion to Mega Evolve into Mega Typhlosion when held during battle.					Locations Trade a Druddigon for a Cyndaquil in Sonata City
Description One variety of the mysterious Mega Stones. Have Typhlosion hold it, and this stone will enable it to Mega Evolve.

Tyranitarite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Tyranitar to Mega Evolve into Mega Tyranitar when held during battle.					Locations Hidden item near the Ruin Maniac in the Rezzai Desert.
Description One variety of the mysterious Mega Stones. Have Tyranitar hold it, and this stone will enable it to Mega Evolve.

Venusaurite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Venusaur to Mega Evolve into Mega Venusaur when held during battle.					Locations Inside of the Perfection Base if the player chose Bulbasaur as his or her starter on Purity Mode.
Description One variety of the mysterious Mega Stones. Have Venusaur hold it, and this stone will enable it to Mega Evolve.

Zoronite   ITEMS pocket							Cannot be bought Cannot be sold
Effect: Allows Zoroark to Mega Evolve into Mega Zoroark when held during battle.					Locations Previous Mystery Gift (no longer available)
Description One variety of the mysterious Mega Stones. Have Zoroark hold it, and this stone will enable it to Mega Evolve.

Trivia

• The design of the Mega Stones appear to be based on a common pattern found in the glass marble called a toothpaste marble.