How to obtain it
You can find a Griseous Orb by opening Mystery Boxes.
How to use it
Once you have hands on a Griseous Orb, you will need to go to the Ancient Cave to begin the Giratina Quest. Once you start the quest, you will get mini games randomly around the site, in where you need to click as many Giratina Sprites as you can in a set amount of time. There will be a total of 4 Mini Games to complete.
Once you complete all the mini games and head back to the Anicent Cave, you will be given a Spooky Manor (Map)
- Griseous Orbs are tradeable.