How to Catch Spiritomb From Hallowed Tower in Pokemon Pearl

This is a tutorial on how to catch Spiritomb from the Hallowed Tower in Pokemon Pearl/Diamond/Platinum. To get it normally you have to have the Odd Keystone

Spiritomb encounter is tied to the amount of NPCs you have seen in the underground : r/PokeLeaks

Pokémon Brilliant Diamond and Shining Pearl Spiritomb location: How to get Spiritomb and the Odd Keystone explained

Pokémon BDSP: How To Find (& Catch) Spiritomb

Pokémon Diamond and Pearl: How to capture Spiritomb - Millenium

How to get Spiritomb in Pokemon Brilliant Diamond & Shining Pearl [#442]

Route 209 (Encounters & Items) - Cobble Badge - Walkthrough, Pokémon: Brilliant Diamond & Shining Pearl

Spiritomb counter at Hallowed Tower doesn't go up even though I'm interacting with people/NPCs? : r/PokemonBDSP

How to Catch Spiritomb Guide for Brilliant Diamond Shining Pearl BDSP

Pokémon Brilliant Diamond and Shining Pearl Spiritomb location: How to get Spiritomb and the Odd Keystone explained