Key Stone

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A Key Stone (Japanese: キーストーン Key Stone) is a Key Item introduced in Generation VI, which is used to allow a holding a Mega Stone to Mega Evolve. Starting from Generation VIII, it is unobtainable.
When the Key Stone is activated, the Pokémon's corresponding Mega Stone reacts to it, starting the Mega Evolution process. s often keep their Key Stone inside a personal accessory, such as a Mega Ring, Mega Bracelet, Z-Ring, or Z-Power Ring, though there are exceptions to this.
==In the core series games==
===Player characters===
====Pokémon X and Y====
In , the player characters hold their Key Stones in a Mega Ring, a large black bracelet that and wear on their left wrist.
The possession of one Mega Ring is offered to the player and each of their friends, who have to pick the most deserving out of their group. The selection is quickly whittled down to two people: the player and or (depending on the gender of the player). Upon defeating their rival, the player must obtain the at the Shalour Gym and then go to the top of the Tower of Mastery to receive the ring from Korrina.
After the player has beaten their rival in Kiloude City, Professor Sycamore will upgrade their Mega Ring at the Anistar Sundial by having the player touch the sundial. Once upgraded, the player can then find hidden Mega Stones around Kalos from 8:00 PM to 9:00 PM.
====Pokémon Omega Ruby and Alpha Sapphire====
In , the player characters hold their Key Stones in a Mega Bracelet, a large white bracelet that and wear on their left wrist. gives the Mega Bracelet to the player on Southern Island after or , holding its respective Mega Stone, joins the player.
The player character also wears a special Mega Bracelet during , Brendan's being a Mega Cuff, a black band with a circle of large, connected red diamonds affixed to it, with the Key Stone embedded in the band, while May's is a Mega Charm, a chain of cream bows with the Key Stone embedded into a pink heart charm.
 avatars of player characters that have a Mega Bracelet will use it in battle if possible.
====Pokémon Sun, Moon, Ultra Sun, and Ultra Moon====
In Generation VII, after becoming the , the player receives a Key Stone from Sina and Dexio at Ancient Poni Path/Poni Plains after defeating Dexio. They hold their Key Stone in their Z-Ring or Z-Power Ring.
====Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!====
In Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!, the player receives a Key Stone from at Professor Oak's Laboratory in Pallet Town after earning seven Badges and meeting in front of the Viridian Gym. They do not hold it in any accessory and it does not show up on the player's models.
===Non-player characters===
Many non-player characters keep their Key Stones in special items, many of which differ from the items that the player can use.
====Pokémon X and Y====
* Korrina uses a Mega Glove (Japanese: メガグローブ Mega Glove), which is a white glove she wears on her left hand.
* Lysandre's Mega Ring (Japanese: メガリング Mega Ring) takes the form of a silver ring that he wears on the middle finger of his left hand.
* Diantha uses a Mega Charm (Japanese: メガチャーム Mega Charm), which is a gold pendant she wears on her neck.
====Pokémon Omega Ruby and Alpha Sapphire====
* Steven Stone uses a Mega Stickpin (Japanese: メガラペルピン Mega Lapel Pin), which is a pin he wears on the lapel of his jacket.
* Wally uses a Mega Pendant (Japanese: メガペンダント Mega Pendant), which is a pendant he wears.
* Archie uses a Mega Anchor (Japanese: メガイカリ Mega Anchor), which is a golden, anchor-shaped necklace he wears.
* Maxie uses Mega Glasses (Japanese: メガメガネ Mega Glasses), which is a pair of glasses he wears.
* Lisia uses a Mega Tiara (Japanese: メガティアラ Mega Tiara), which is a hair clip she wears.
* Zinnia uses a Mega Anklet (Japanese: メガアンクレット Mega Anklet), which wraps around her right ankle.
* Courtney and Matt use Mega Rings during the Delta Episode, which are not seen on their artwork.
* Sidney, Phoebe, Glacia, and Drake use generic Key Stones after the Delta Episode, which are not seen on their artwork.
====Pokémon Sun, Moon, Ultra Sun, and Ultra Moon====
* Sina and Dexio use white Mega Rings (Japanese: メガリング Mega Ring) that they each wear around their left wrist.
* Some opponents at the Battle Tree and Battle Royal Dome use generic Key Stones, which do not show up on their models.
====Pokémon: Let's Go, Pikachu! and Let's Go, Eevee!====
* All opponents that can Mega Evolve their Pokémon use generic Key Stones, which do not show up on their models.
===Appearance===
====Artwork====
 	 	 	 	
's 	's 	's Mega Glove 	's Mega Ring 	's Mega Charm
 	 	 	 	
's 	's 	's 	's 	's Mega Stickpin
 	 	 	 	
's Mega Pendant	's Mega Anchor	's Mega Glasses	's Mega Tiara	's Mega Anklet
====Sprites====
				 	
				Key Stone()	Key Stone()
===Price===
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===Effect===
Allows the player to Mega Evolve their Pokémon if they hold the appropriate Mega Stone. Each Trainer can only Mega Evolve one Pokémon per battle.
===Description===
;Mega Ring
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;Mega Bracelet
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;Key Stone
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===Acquisition===
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| Mega Ring: Tower of Mastery (from Korrina after earning the )
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| Mega Bracelet: Southern Island (from after obtaining /)
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| Key Stone: Ancient Poni Path (from Dexio after becoming )
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| Key Stone: Poni Plains (from Dexio after becoming )
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| Key Stone: Professor Oak's Laboratory (from after earning seven Badges)
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==In the spin-off games==
===Pokémon Rumble World===
The player obtains a Mega Key after completing the Raid of the Mighty General challenge.
==In animation==
===Pokémon the Series===
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In Mega Evolution Special I, Alain was seen wearing a Mega Ring similar to that of the protagonists of Pokémon X and Y. He uses it to Mega Evolve his into Mega Charizard X. In Mega Evolution Special II, it was revealed that he received it from Lysandre. After the Team Flare crisis, Alain gave his Mega Ring to the authorities to be used as evidence and resolved find himself a new Key Stone on his own.
In the same episode, Astrid was shown wearing her Key Stone as an earring on her right ear, while Remo had his Key Stone embedded into the tip of the umbrella that he carries with him. Siebold, a member of the Kalos Elite Four, was seen wearing his Key Stone in his necktie. Astrid's Key Stone made a brief reappearance during the opening credits of Diancie and the Cocoon of Destruction.
In The Bonds of Evolution!, Diantha tapped into the power of her Mega Charm to Mega Evolve her , giving it the power to break free from 's clutches. The Mega Charm has also been seen during Diantha's subsequent appearances.
In Mega Revelations!, was shown wearing her Key Stone in her Mega Glove, having received it from her grandfather. However, her lacked the Lucarionite, meaning that she wasn't able to use it yet. After obtaining a Lucarionite in The Cave of Trials!, she was soon able to use her Key Stone in order to Mega Evolve her Lucario.
In The Aura Storm!, Gurkinn uses a Key Stone to Mega Evolve his own Lucario. Similar to Korrina, he wears it in a glove on his left hand.
A Key Stone possessed by Mabel appeared in The Bonds of Mega Evolution!. Embedded in her walking stick, she uses it to Mega Evolve her into Mega Mawile.
In Diancie and the Cocoon of Destruction, a diamond Diancie had created and given to earlier caused it to Mega Evolve, acting as a Key Stone. At the end of the movie, Bonnie returned the diamond to Diancie.
Mega Evolution Special II featured and his Mega Stickpin. Alain was able to recognize the Key Stone on the 's person, leading him to challenge Steven to a battle.
In the same episode, a giant Key Stone was discovered by Steven and Alain. While Lysandre's scientists were inspecting it, appeared and used the Key Stone's power to Mega Evolve into Mega Rayquaza. Soon after, it disappeared along with the chaos created by Rayquaza's . The stone reappeared in Mega Evolution Special III, along with Mega Rayquaza. It was eventually taken away by Lysandre's submarine to be studied at the Lysandre Labs.
In Garchomp's Mega Bond!, it was revealed that had found a Key Stone along with a piece of Garchompite. He uses them to Mega Evolve his . In the same episode, it was revealed that Blaziken Mask keeps his Key Stone embedded in his belt buckle.
Multiple Key Stones appeared in Mega Evolution Special IV. A Trainer with a has his Key Stone inside of a pocket watch, a Trainer wears his Key Stone on his turban, Malva carries her Key Stone in a necklace, a Trainer has his embedded on his Banette puppet, and Lysandre has his Key Stone embedded in a Mega Ring he wears on his left hand.
A Key Stone belonging to Wulfric appeared in A Real Icebreaker!. The Snowbelle City Gym Leader keeps his Key Stone inside of the locket he wears around his neck, and uses it to Mega Evolve his .
In A League of His Own!, was revealed to have a Key Stone embedded on his camera's shutter button. With it, he is able to Mega Evolve his into Mega Charizard Y.
In Valuable Experience for All!, Sawyer was revealed to have a Key Stone attached on the end of his notebook latch. He uses it to Mega Evolve his . In The First Day of the Rest of Your Life!, Sawyer revealed that he received his Key Stone from Steven.
A Key Stone held by Kimia appeared in Volcanion and the Mechanical Marvel, wearing it on a bracelet around her left wrist. She uses it to Mega Evolve her Gardevoir.
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A Key Stone belonging to , located on a necklace under his shirt, and a Key Stone belonging to , located on her hair band, appeared in When Regions Collide!. They use them to Mega Evolve their and , respectively.
In The Prism Between Light and Darkness!, Gozu was revealed to own a Key Stone embedded in a dog tag that is kept hidden under his Team Rocket uniform. He uses it to Mega Evolve his .
In Battling Besties!, Ilima was revealed to possess a Key Stone, which is attached to a string he can wear around his wrist. He uses it to Mega Evolve his .
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In An Adventure of Mega Proportions!, received a Mega Glove from Korrina. The Key Stone enhanced the Aura of both Ash and his , and also allowed them to locate the Mega Stone for the Aura Pokémon. After obtaining the Mega Stone, Ash became able to Mega Evolve his Lucario.
In Taking Two For The Team!, Drasna was shown to own a Key Stone, which she wears around her right wrist. She uses it to Mega Evolve her .
In Reuniting for the First Time!, Lisia used her Mega Tiara to Mega Evolve her Altaria, Ali, during the Lilycove City Pokémon Contest Spectacular.
In Curtain Up! Fight the Fights!, Alain was revealed to have acquired a new Mega Ring.
In The Fiery Road to Mastership!, was revealed to own a Key Stone, which is embedded in her lipstick. She uses it to Mega Evolve her .
====Gallery====
Key Stone anime.png|Alain's first Key Stone
Alain Mega Ring 2.png|Alain's second Key Stone
Astrid Key Stone.png|Astrid's Key Stone located on her earring
Remo Key Stone.png|Remo's Key Stone located on his parasol
Siebold Key Stone.png|Siebold's Key Stone located on his frilled tie
Diantha Mega Charm anime.png|Diantha's Mega Charm
Korrina Mega Glove anime.png|'s Mega Glove
Mabel Key Stone.png|Mabel's Key Stone on her staff
Steven Mega Stickpin anime.png|'s Mega Stickpin
Professor Sycamore Key Stone.png|'s Key Stone
Meyer Key Stone.png|Meyer's Key Stone
Malva Key Stone.png|Malva's Key Stone located on her necklace
Lysandre Key Stone.png|Lysandre's Mega Ring
Wulfric Key Stone.png|Wulfric's Key Stone located in his necklace pendant
Trevor Key Stone.png|'s Key Stone located on his camera
Sawyer Key Stone.png|Sawyer's Key Stone located on his bookmark
Brock Key Stone.png|'s Key Stone located on his necklace
Misty Key Stone.png|'s Key Stone located on her hairband
Gozu Key Stone.png|Gozu's Key Stone located on his necklace ID tags
Ilima Key Stone.png|Ilima's Key Stone located on his bracelet
Ash Mega Glove.png|'s Mega Glove
Drasna Key Stone.png|Drasna's Key Stone located on her bracer
Lisia Mega Tiara anime.png|Lisia's Mega Tiara
Cynthia Key Stone.png|'s Key Stone located on her lipstick
===Pokémon Origins===
In File 2: Cubone, after helping drive off driving Team Rocket out of the Pokémon Tower and helping find peace, received a Key Stone and a Charizardite X from Mr. Fuji. The Key Stone and Mega Stone activated in File 4: Charizard during Red's showdown with , Mega Evolving his trusted first partner Pokémon, , into Mega Charizard X and giving them the strength to weaken Mewtwo so that Red could catch it. This Key Stone was not worn in any accessory.
===Pokémon Omega Ruby and Alpha Sapphire Animated Trailer===
In the Pokémon Omega Ruby and Pokémon Alpha Sapphire Animated Trailer, Brendan and were seen wearing their Mega Bracelets. They used them to Mega Evolve the Hoenn first partner Pokémon.
===Pokémon Generations===
In The Vision, and Maxie were seen wearing their Mega Bracelet and Mega Glasses, respectively. Furthermore, Archie could be seen wearing his Mega Anchor in The Cavern. None of them were seen using their Key Stones, however.
===Pokémon Evolutions===
In The Visionary, Lysandre used his Mega Ring to Mega Evolve his during his battle against . Calem and were also seen wearing a Mega Ring each, but they were not seen using them.
In The Wish, was shown to own a Mega Bracelet, while Zinnia was shown to possess a Mega Anklet and four stolen Key Stones, which she used to summon . May later used her Mega Bracelet to Mega Evolve her to battle Rayquaza, and Rayquaza itself once she had caught it.
==In the manga==
===Pokémon Adventures===
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 was given a Mega Ring with a Key Stone inside from Gurkinn as a child. With it, he can Mega Evolve his Li'l Kanga, Salamè, Élec, , and , into , Mega Charizard X, Mega Manectric, Mega Gengar, and Mega Pinsir, respectively.
Those taught by Gurkinn, the Mega Evolution guru, tend to use Mega Gloves. This includes Korrina, three unnamed students, and Gurkinn himself. Gurkinn stated that he gave Key Stones to 16 people through a Mega Evolution successor ceremony, with X being the sole exception. He later gave his Key Stone to , thus making her a successor as well.
At Lysandre Café in Lumiose City, Diantha shields Y and her friends from Lysandre's Pokémon by using her Mega Charm to Mega Evolve her into Mega Gardevoir.
Lysandre later obtains a Mega Ring from Malva outfitted with a Key Stone stolen from Korrina.
At the Lost Hotel, is made a Mega Evolution successor by Gurkinn. She is given a Mega Ring outfitted with the Key Stone from Gurkinn's Mega Glove. With it, she can Mega Evolve her into Mega Absol.
 is later revealed to be a successor as well, keeping his Key Stone on a ring. When not in use, Blue wears the ring around his neck as a pendant. With it, he can Mega Evolve his into Mega Charizard Y.
Blaine later appears at the Pokémon Village, revealed to have reunited with . He had gained a Key Stone sometime prior and placed it in his cane, using it to Mega Evolve Mewtwo into either Mega Mewtwo Y or Mega Mewtwo X.
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, , and acquired Mega Bracelets from Ultima and in preparation for another disaster coming to Hoenn. In Claydol Unleashes, Ruby successfully used his Mega Bracelet and 's Latiosite to Mega Evolve the Eon Pokémon and soar with it to the Sky Pillar.
Many members of the Draconid people possess Key Stones, such as Zinnia, Renza, Jinga, Tomatoma, and the Meteor Village Elder. While Zinnia keeps her Key Stone in her Mega Anklet, Renza, Jinga, and Tomatoma keep theirs in arm bands, similar to Zinnia's anklet, while the Elder keeps hers in a walking cane. When battling Ruby and Sapphire, Zinnia wears a second Mega Anklet that originally belonged to Aster.
In Hoopa Distorts, Mega Evolved his into Mega Metagross with his Mega Stickpin. In PS616, he reveals that he is a Mega Evolution successor, having obtained the Key Stone from Gurkinn. He later gives Zinnia a jar of Key Stones belonging to Aster that were taken from the Embedded Tower.
In Blastoise Transforms, Maxie and Archie used their Mega Glasses and Mega Anchor to Mega Evolve their and respectively. After Maxie and Archie disappeared from exhausting the energy keeping their bodies stable, Blaise and took their Key Stones and Mega-Evolving Pokémon.
When battling against Maxie and Archie, and used rings with patterns similar to the Mega Bracelets to Mega Evolve Saur and Blasty respectively to battle them. Though their rings resemble the one owned by Blue, it is unknown where they received them.
In PS616, was revealed to have a Key Stone placed in the "R" of his chest pocket. With it, he can Mega Evolve his .
In Omega Alpha Adventure 21, Ruby used his Mega Cuff to Mega Evolve for a Appeal.
====Gallery====
File:Red Green Key Stone Adventures.png| and 's Key Stones
File:Blue Key Stone Adventures.png|'s Key Stone
File:Ruby Mega Bracelet.png|'s Mega Bracelet
File:Mega Cuff Adventures.png|Ruby's Mega Cuff
File:Sapphire Mega Bracelet.png|'s Mega Bracelet
File:Emerald Mega Bracelet.png|'s Mega Bracelet
File:X Mega Ring.png|'s Mega Ring
File:Y Mega Ring.png|'s Mega Ring
File:Giovanni Key Stone Adventures.png|'s Key Stone
File:Blaine Key Stone Adventures.png|Blaine's Key Stone
File:Korrina Mega Glove Adventures.png|Korrina's Mega Glove
File:Steven Mega Stickpin Adventures.png|'s Mega Stickpin
File:Diantha Mega Charm Adventures.png|Diantha's Mega Charm
File:Archie Mega Anchor Adventures.png|Archie's Mega Anchor
File:Maxie Mega Glasses Adventures.png|Maxie's Mega Glasses
File:Lysandre Key Stone Adventures.png|Lysandre's Mega Ring
File:Zinnia Mega Anklet Adventures.png|Zinnia's Mega Anklet
File:Blaise Mega Glasses Amber Mega Anchor Adventures.png|Blaise's Mega Glasses and 's Mega Anchor
File:Jinga.png|Jinga's Key Stone
==Trivia==
* The Key Stone items used by NPCs exist within the data of Pokémon X and Y and Pokémon Omega Ruby and Alpha Sapphire. They have a sprite (a white question mark), but cannot be obtained in normal gameplay. They were programmed into the game because if not, NPCs wouldn't be able to Mega Evolve their Pokémon.
* In Generation VI, before battle with a non-player character that can use Mega Evolution, the Key Stone accessory is often shown off. For Trainers that use VS sprites (such as Korrina and Diantha), often the Key Stone is clearly visible in the zoomed-in VS sprite. For Trainers that use 3D models (such as Lysandre and Zinnia), the camera often starts by focusing on the Key Stone before zooming out to show the full body. Some Trainers, such as / and /, have the Key Stone accessory visible on their 3D model, but it is not focused on. However, other Trainers, such as Courtney, Matt and the Hoenn Elite Four, do not have visible Key Stones at all. s have no visible indication of possessing a Key Stone.
==In other languages==
Key Stone
Mega Charm
Mega Glove
Mega Stickpin
Mega Pendant
Mega Glasses
Mega Anchor
Mega Anklet
Mega Tiara
Mega Ring
Mega Bracelet
Mega Cuff
==Related articles==
* Mega Evolution
* Mega Stone
* Mega Ring
* Mega Bracelet
* List of Key Items in Generation VII
* :Category:Trainers with Key Stones
Category:Items
Category:Equipment
Category:Key Items
Category:Form-changing items
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