Spiritomb cheats for Pokemon Diamond

Spiritomb

When you have put the odd keystone on the broken stone tower and turned it into the Hallowed Tower you need to talk to 32 people in the underground (hikers not included). Then touch the Hallowed tower and press the A button and spiritomb will appear.

Theres loads more info this game, right here, with some cheats and tips, answers and Pokemon Diamond walkthrough.