The Griseous Orb (Japanese: はっきんだま Platinum Orb) is a type of held item introduced in Pokémon Platinum. It boosts the power of Dragon- and Ghost-type moves when held by Giratina, and changes Giratina into its Origin Forme.
If held by Giratina, it increases the power of its Dragon- and Ghost-type moves by 20%.
It allows Giratina to remain in its Origin Forme outside of the Distortion World.
Pokémon holding Griseous Orb in Pokémon Platinum and Pokémon HeartGold and SoulSilver cannot be traded. In addition, only Giratina is able to hold Griseous Orb in these games.