Items, Species-specific, #442
Griseous Orb flings for 60 power, a Species-specific item since Generation IV
PokéAPI item 442 of 2,223, Species-specific category, Items pocket
Effect, in PokéAPI's words
Griseous Orb: “Boosts the damage from Giratina’s Dragon-type and Ghost-type moves by 20%, and transforms it into Origin Forme.”
Held by Giratina: Holder’s Dragon and Ghost moves have 1.2× their base power. Holder is in Origin Forme. This item cannot be held by any Pokémon but Giratina. When you enter the Union Room or connect to Wi-Fi, this item returns to your bag.
Games
Griseous Orb is listed in the text of 9 version groups, first in Generation IV
Game index by generation
IIIIIIIVVVIVIIVIIIIX
Named in
PlatinumHeartGold and SoulSilverBlack and WhiteBlack 2 and White 2X and YSun and MoonUltra Sun and Ultra MoonLet's Go Pikachu and Let's Go EeveeSword and Shield