Spiritomb

Spiritomb (Japanese: ミカルゲ Mikaruge) is a /-type Pokémon introduced in Generation IV.

Physiology
Spiritomb are somewhat ghost-like in appearance. The main body of a Spiritomb appears like a purple, swirling vortex with green eyes and a black spiral for a pupil in its left eye. Around its face are green orbs that encircle it. Its "body" is connected to a stone base, with a small fissure in it supposing it was released when the seal was broken half way but still bound to the stone. Spiritomb's mouth is green like its eyes. The "face" of the Odd Keystone is not visible when Spiritomb is present. The shiny variant of Spiritomb has a blue vortex, and purple dots, eyes, and mouth.

Special Abilities
All Spiritomb have the ability Pressure, which consumes the enemy's PP by 2 instead of one. It is said that Spiritomb are composed of 108 spirits, but could as well be the reason for its pokedex number to be "108" referring to the 108 spirits. It is one of 5 Pokémon that have no weakness, due to its typing (until Generation VI with the introduction of Fairy-type Pokémon).

Evolution
Spiritomb does not evolve.

To obtain
Start by placing the Odd Keystone into the stone tower on Route 209, it then turns into the Hallowed Tower. Afterwards, go underground and greet 32 people. Finally, touch the Hallowed Tower by pressing A to trigger a battle.

Alternately, obtain using the Poké Walker for Pokémon HeartGold and SoulSilver, or complete the Yancy storyline in Pokémon Black and White Versions 2.

Trivia

 * Spiritomb is one of the two Pokémon that are /, the other being Sableye.
 * Spiritomb is one of the seven non-Legendary Pokémon to have the ability Pressure, the others being Vespiquen, Dusknoir, Dusclops, Weavile, Aerodactyl, and Absol.
 * The Pokédex says Spiritomb is formed by 108 spirits. Both Spiritomb's Defense and Special Defense stats are 108.
 * Even its Sinnoh Dex Number is 108.

Origins
Spiritomb might be based on a Buddhist tradition which involves ringing a bell 108 times to repel 108 temptations in order to achieve nirvana. Additionally, it may also be based on a type of spirit called a "Jibakurei", a ghost that is bound to a single place.