Odd Keystone

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.

In the core series games

Price

In the Generation V games, the Odd Keystone can be sold to the ore maniac inside the Icirrus City Pokémon 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.

Hallowed Tower (Route 209)
Types: Ghost Dark Ability: Pressure Held item: None Spiritomb♂/♀ Lv.25 Faint Attack Dark Physical   --       Hypnosis Psychic Status   --       Dream Eater Psychic Special   --       Ominous Wind Ghost Special   --

Description

Acquisition

Appearance

Model from Omega Ruby and Alpha Sapphire

Other appearances

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

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.

In spin-off games

Pokémon Mystery Dungeon series

Spiritomb, as an Odd Keystone, in the Sealed Ruin

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 against 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

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

Language Title Chinese Cantonese 楔石 Sitsehk Mandarin 楔石 Xiēshí Finnish Outo riimukivi French Clé de Voûte German Spiritkern Italian Roccianima Korean 쐐기돌 Sswaegi Dol Spanish Piedra Espíritu* P. Espíritu* Piedra Base* Vietnamese Đá Đỉnh Vòm

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