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Odd Keystone
かなめいし
Keystone
Underground sprite
Introduced in Generation IV
Pocket
Generation IV Items
Generation V Items
Generation VI Items
Generation VII Items
Fling
Power 80

The Odd Keystone (Japanese: かなめいしKeystone) is a type of item introduced in Generation IV. Odd Keystones act like containers, capable of trapping and binding Spiritomb inside themselves. All Spiritomb use it as a base.

  • 1In the core series games
  • 2In spin-off games
  • 4In the manga

In the core series games

Price

Games Cost Sell price
HGSS
N/A 1,050

In the Generation V games, the Odd Keystone can be sold to the ore maniac inside the Icirrus CityPokémon Center for 3000.

Effect

In Pokémon Diamond, Pearl, and Platinum, an Odd Keystone can be placed in the Hallowed Tower, which is located on Route 209 in the Sinnoh region. This item has no use in other regions.

If the player talks to 32 or more other players in the Sinnoh Underground after placing the Odd Keystone, a wild Spiritomb will be encountered the next time the player inspects the Hallowed Tower. While in theory it is necessary to talk to 32 different players, in practice another player can be counted twice as long as the player themselves leaves the Underground or enters their Secret Base using the 'close door and decorate' function between the interactions; this potentially allows a player to encounter Spiritomb by interacting with the same player 32 times.

Once placed in Hallowed Tower, the player can check the Odd Keystone to track their progress. The message gradually changes as the player interacts with more players in the Underground.

Description

Games Description

A vital item that is needed to keep a stone tower from collapsing. Voices can be heard from it occasionally.

Acquisition

Games Finite methods Repeatable methods
Twinleaf Town, Route 208The Underground
HGSSTrade
BWTrade
B2W2

Appearance

Model from
Omega Ruby and Alpha Sapphire

Other appearances

Spiritomb, with the Odd Keystone visible at the base of its body

The Odd Keystone is clearly visible on Spiritomb's body.

Unown Pokemon Sword

In Pokémon Omega Ruby and Alpha Sapphire, an Odd Keystone appears in the overworld on Sea Mauville. It appears just before the player faces Spiritomb and therefore cannot be collected. Documents aboard the ship reveal it was originally donated by the Oreburgh Mine.

In spin-off games

Pokémon Mystery Dungeon series

Roblox Pokemon Fighters Ex Unown God

In Pokémon Mystery Dungeon: Explorers of Time, Darkness, and Sky, when the player and partner reach Sealed Ruin Pit (the ultimate floor of Sealed Ruin), they only see an Odd Keystone, not realizing it is a Pokémon. Suddenly, it will reveal itself to be Spiritomb and attacks the duo.

In Pokémon Mystery Dungeon: Explorers of Time, Darkness, and Sky, Spiritomb's sleeping sprites involve it returning to the Odd Keystone.

In the anime

An Odd Keystone in the anime

In The Keystone Pops!, while Ash and Dawn were having a practice battle between Buizel and Aipom, Buizel's Sonic Boom accidentally destroyed the Hallowed Tower, releasing a Spiritomb from the Odd Keystone sealed inside of it. Ash and Pikachu later battled Spiritomb, eventually defeating it and resealing it back into the Odd Keystone, which was then placed back into the rebuilt Hallowed Tower.

In the manga

An Odd Keystone in Pokémon Adventures

In the Pokémon Adventures manga

Pokemon

Cynthia's Spiritomb is connected to an Odd Keystone, which was fully seen in Shunning Spiritomb, when the Forbidden Pokémon was frozen by Cyrus's Weavile and it retracted into the stone.

An Odd Keystone appeared in Leaping Past Lopunny among the rare stones that Steven had found during his stay in Sinnoh.

In other languages

LanguageTitle
ChineseCantonese 楔石 Sitsehk
Mandarin 楔石 Xiēshí
Outo riimukivi
Clé de Voûte
Spiritkern
Roccianima
쐐기돌 Sswaegi Dol
Dawne Więzienie*
Stary Kamień*
Pedra sagrada*
Pedra única*
Piedra Espíritu*
P. Espíritu*
Piedra Base*
Đá Đỉnh Vòm


Pokemon Gold Unown

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

Pokemon Go Unown Location

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