If you have completed the Elite Four and become the Champion in Pokémon Brilliant Diamond and Shining pearls, then you’ve definitely met Spiritomb. Pokémon can be extremely hard to beat due to some of its weaknesses, and that might make you think you want one on your party.
Spiritomb was first introduced in the 4th generation and has two typing styles Ghost and Dark. With this combination, the Pokémon’s only weakness is the Fairy-type Pokémon, which is also the type that few Pokémon have.
Those who plan to capture Spiritomb cannot simply go out and find one in the wild. Spiritombs can only be captured with the help of an item called the Odd Keystone.
Where to find the Exotic Keystone in Pokémon Brilliant Diamond and Shining pearls
If you’re after Odd Keystone, there are three locations you can visit. The easiest to access is at home in Twinleaf Town, where items hidden in the pond can be found.
When you reach Twinleaf Town, head south to the pond visible in town. Use Surf to walk on water and move against the wall on the left side, press “A” to pick up items.
You can find the second Odd Keystone on Road 208. Leave Hearthome City, head west and head south as soon as you enter Road 208. Talk to the man in the corner of the grass, he will give it to you. another Odd Keystone.
If you’re trying to get an item early in the game, you can always find it by mining in the Grand Underground. However, this is the hardest way because its drop rate is quite low.
https://dotesports.com/pokemon/news/where-to-find-odd-keystone-in-pokemon-brilliant-diamond-and-shining-pearl Where to find Odd Keystone in Pokémon Brilliant Diamond and Shining Pearl