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Key Stone

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If you were looking for the item that Spiritomb is bound to, see Odd Keystone.

A Key Stone (Japanese: キーストーン Key Stone) is a stone that acts as a medium between a Pokémon Trainer and a Pokémon holding a Mega Stone in order to make them Mega Evolve. A Key Stone is typically embedded in a personal accessory. When the Key Stone is activated, the Pokémon's corresponding Mega Stone reacts to it, starting the process.

Key Stone accessories

A Key Stone can be inserted in various objects so that it can be kept on the owner's person. Many characters use different objects to hold their Key Stones.

Before battle with a Trainer 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 Calem/Serena and Brendan/May, have the Key Stone accessory visible on their 3D model, but not focused on. However, other Trainers, such as Courtney, Matt and the Hoenn Elite Four, don't have visible Key Stones at all. Secret Base Trainers have no visible indication of possessing a Key Stone.

Player character accessories

Pokémon X and Y

In Pokémon X and Y, the player characters hold their Key Stones in a Mega Ring (Japanese: メガリング Mega Ring), a large black bracelet that Calem and Serena wear on their left wrist.

The possession of one Mega Ring is offered to the player and each of his or her friends, who have to pick the most deserving out of their group. The selection is quickly whittled down to two people: the player and Serena or Calem (depending on the gender of the player). Upon defeating their rival, the player must obtain the Rumble Badge 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 Pokémon Omega Ruby and Alpha Sapphire, the player characters hold their Key Stones in a Mega Bracelet (Japanese: メガバングル Mega Bangle), a large white bracelet that Brendan and May wear on their left wrist. Steven gives the Mega Bracelet to the player on Southern Island after LatiosOR or LatiasAS, holding its respective Mega Stone, joins the player.

The player character also wears a special Mega Bracelets during Contests, Brendan's being a Mega Cuff (Japanese: メガブレス Mega Bracelet), 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 (Japanese: メガチャーム Mega Charm), a chain of cream bows with the Key Stone embedded into a pink heart charm.

Secret Base Trainer avatars of player characters that have a Mega Bracelet will use it in battle if possible.

Non-player character accessories

Many non-player characters use different items to carry their Key Stones than the player characters do.

  • 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.
  • 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.
  • Diantha uses a Mega Charm (Japanese: メガチャーム Mega Charm), which is a gold pendant she wears on her neck.
  • 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.
  • Maxie uses Mega Glasses (Japanese: メガメガネ Mega Glasses), which is a pair of glasses he wears.
  • Archie uses a Mega Anchor (Japanese: メガイカリ Mega Anchor), which is a golden, anchor-shaped necklace he wears.
  • Lisia uses a Mega Tiara (Japanese: メガティアラ Mega Tiara), which is a hair clip she wears.
  • Wally uses a Mega Pendant (Japanese: メガペンダント Mega Pendant), which is a pendant he 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.



Mega Ring male.png Mega Ring female.png Korrina Mega Glove.png Lysandre Mega Ring.png Diantha Mega Charm.png
Calem's Mega Ring Serena's Mega Ring Korrina's Mega Glove Lysandre's Mega Ring Diantha's Mega Charm
Brendan Mega Bracelet.png May Mega Bracelet.png Contest Mega Bracelet male.png Contest Mega Bracelet female.png Steven Mega Stickpin.png
Brendan's Mega Bracelet May's Mega Bracelet Brendan's Mega Cuff May's Mega Charm Steven Stone's Mega Stickpin
Wally Mega Pendant.png Archie Mega Anchor.png Maxie Mega Glasses.png Lisia Key Stone accessory.png Zinnia Mega Anklet.png
Wally's Mega Pendant Archie's Mega Anchor Maxie's Mega Glasses Lisia's Mega Tiara Zinnia's Mega Anklet


Mega Ring Mega Bracelet Mega Cuff Mega Charm
Mega Ring Mega Bracelet Mega Cuff Mega Charm

Flavor text

Mega Ring
Games Description
XY This ring contains an untold power that somehow enables Pokémon carrying a Mega Stone to Mega Evolve in battle.
ORAS* This ring contains an untold power that somehow enables Pokémon carrying Mega Stones to Mega Evolve in battle.
Mega Bracelet
Games Description
ORAS This cuff contains an untold power that somehow enables Pokémon carrying a Mega Stone to Mega Evolve in battle.

In side games

050Diglett.png This section is incomplete.
Please feel free to edit this section to add missing information and complete it.
Reason: Names for the Mega Key in other languages.

Pokémon Rumble World

The player obtains a Mega Key after completing the Raid of the Mighty General challenge.

In the anime

The Mega Ring in the anime

In the main series

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 Charizard into Mega Charizard X. In Mega Evolution Special II, it was revealed that he received it from Lysandre.

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 intro 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 Gardevoir, giving it the power to break free from Team Rocket's clutches.

In Mega Revelations!, Korrina was shown wearing her Key Stone in her Mega Glove, having received it from her grandfather. However, her Lucario lacked the Lucarionite, meaning that she wasn't able to use it yet. After obtaining a Lucarionite in The Cave of Trials!, she became able use her Key Stone to Mega Evolve her Lucario.

Another Key Stone appeared in The Aura Storm!, under the ownership of Gurkinn, who uses it 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 Mawile into Mega Mawile.

In Diancie and the Cocoon of Destruction, a diamond Diancie had created and given to Bonnie earlier caused it to Mega Evolve, acting as a Key Stone.

Mega Evolution Special II featured Steven and his Mega Stickpin. Alain was able to recognize the Key Stone on the Champion'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, Rayquaza 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 Draco Meteor. The stone reappeared in Mega Evolution Special III, along with Mega Rayquaza. It was eventually taken away by Lysandre's submarine.

In Garchomp's Mega Bond!, it is revealed that Professor Sycamore had found a Key Stone along with a piece of Garchompite. In the same episode, it is revealed that Blaziken Mask keeps his Key Stone embedded in his belt buckle.

Multiple Key Stones appeared in SS035. A Trainer with a Mega Venusaur has his Key Stone inside of a pocket watch, a Mega Alakazam Trainer wears his Key Stone on his turban, Malva carries her Key Stone in a necklace, a Mega Banette 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.


In Pokémon Origins

Charizardite X (left) and a Key Stone (right) in Pokémon Origins

In File 2 - Cubone, after helping drive off driving Team Rocket out of the Pokémon Tower and helping the ghost of Marowak find peace, Red receives 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 Mewtwo, Mega Evolving his trusted starter Pokémon, Charizard, 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.

In the manga

A Mega Ring in the Pokémon Adventures manga

In the Pokémon Adventures manga

In the X & Y chapter, X 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, Élec, and Lasma, into Mega Kangaskhan, Mega Manectric, and Mega Gengar, 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 17 people through a Mega Evolution successor ceremony, with X being the sole exception.

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 Gardevoir into Mega Gardevoir.

Lysandre later obtains a Mega Ring from Malva outfitted with a Key Stone stolen from Korrina.

At the Lost Hotel, Y is made a Mega Evolution successor by Gurkinn. She is given a Mega Ring outfitted with the Key Stone from Gurkinn's Mega Glove.

In the Omega Ruby & Alpha Sapphire chapter, Ruby, Sapphire, and Emerald acquired Mega Bracelets from Ultima and Steven in preparation for another disaster coming to Hoenn. In PAORAS02, he successfully used his Mega Bracelet and Latios's Latiosite to Mega Evolve the Eon Pokémon and soar with it to the Sky Pillar.

Zinnia appears with her Mega Anklet at the Sky Pillar with Aster, where she battles Ruby with her Salamence. She activates it in PAORAS03, allowing her Salamence to Mega Evolve.

In PAORAS11, Maxie and Archie use their Mega Glasses and Mega Anchor to Mega Evolve their Camerupt and Sharpedo respectively. In retaliation, Red and Green use rings with patterns similar to the Mega Bracelets to Mega Evolve Saur and Blasty respectively to battle them.



In other languages

Key Stone

Language Title
Chinese Cantonese 鍵石Gin Sehk
Key Stone
Mandarin 進化鑰石 Jìnhuà Yàoshí
Finland Flag.png Finnish Avainkivi
France Flag.png French Gemme Sésame
Germany Flag.png German Schlüssel-Stein
Italy Flag.png Italian Pietrachiave
South Korea Flag.png Korean 키스톤 Key Stone
Poland Flag.png Polish Kamień Klucz
Brazil Flag.png Brazilian Portuguese Pedra Chave
Spain Flag.png Spanish Piedra Activadora
Sweden Flag.png Swedish Nyckelsten
Vietnam Flag.png Vietnamese Kiện Thạch


Mega Ring

Language Title
France Flag.png French Méga-Anneau
Germany Flag.png German Mega-Ring
Italy Flag.png Italian Megacerchio
South Korea Flag.png Korean 메가링 Mega Ring
Spain Flag.png Spanish Mega-Aro

Mega Charm

Language Title
France Flag.png French Méga-Charme
Germany Flag.png German Megaillon
Italy Flag.png Italian Megaciondolo
South Korea Flag.png Korean 메가참이 Mega Charm
Spain Flag.png Spanish Megacolgante

Mega Glove

Language Title
France Flag.png French Méga-Gant
Germany Flag.png German Mega-Handschuh
Italy Flag.png Italian Megaguanto
South Korea Flag.png Korean 메가글러브가 Mega Glove
Spain Flag.png Spanish Megaguante

Mega Bracelet

Language Title
France Flag.png French Méga-Bracelet
Germany Flag.png German Mega-Armreif
Italy Flag.png Italian Megabracciale
South Korea Flag.png Korean 메가뱅글 Mega Bangle
Spain Flag.png Spanish Megapulsera

Mega Stickpin

Language Title
France Flag.png French Méga-Pin
Germany Flag.png German Mega-Anstecker
Italy Flag.png Italian Megaspilla
South Korea Flag.png Korean 메가라펠핀 Mega Lapel Pin
Spain Flag.png Spanish Megabroche

Mega Pendant

Language Title
France Flag.png French Méga-Pendentif
Germany Flag.png German Mega-Anhänger
Italy Flag.png Italian Megapendente
South Korea Flag.png Korean 메가펜던트 Mega Pendant
Spain Flag.png Spanish Megacollar

Mega Glasses

Language Title
France Flag.png French Méga-Lunettes
Germany Flag.png German Mega-Brille
Italy Flag.png Italian Megaocchiali
South Korea Flag.png Korean 메가글라스 Mega Glass
Spain Flag.png Spanish Megagafas

Mega Anchor

Language Title
France Flag.png French Méga-Ancre
Germany Flag.png German Mega-Anker
Italy Flag.png Italian Megaancora
South Korea Flag.png Korean 메가앵커 Mega Anchor
Spain Flag.png Spanish Megaancla

Mega Anklet

Language Title
France Flag.png French Méga-Grève
Germany Flag.png German Mega-Beinreif
Italy Flag.png Italian Megagambale
South Korea Flag.png Korean 메가앵클릿 Mega Anklet
Spain Flag.png Spanish Megatobillera

Mega Tiara

Language Title
France Flag.png French Méga-Barette
Germany Flag.png German Mega-Diadem
Italy Flag.png Italian Megatiara
South Korea Flag.png Korean 메가티아러 Mega Tiara
Spain Flag.png Spanish Megatiara

Mega Cuff

Language Title
France Flag.png French Méga-Manchette
Germany Flag.png German Mega-Armbänder
Italy Flag.png Italian Megapolsiera
South Korea Flag.png Korean 메가블레스 Mega Brace
Spain Flag.png Spanish Megabrazalete

See also

Project ItemDex logo.png This item article is part of Project ItemDex, a Bulbapedia project that aims to write comprehensive articles on all items.