The Hallowed Tower is a small, crumbled structure barely resembling a tower, located near the east edge of the route. If you bring an Odd Keystone here, then speak to 32 unique NPCs in the Grand Underground, you can make Spiritomb appear.
This strategy guide for Pokémon Brilliant Diamond & Shining Pearl contains all the information Pokémon trainers will need to complete the game and catch every single Pokémon!
In this remake of the classic Pokémon Diamond & Pearl, you’ll journey through the mystical Sinnoh region to become a Pokémon master. Along the way, you’ll confront the scheming Team Galactic and witness the awesome power of the Legendary Dialga or Palkia.