From PokéHeroes Wiki
The Red Orb is an item which can change a Groudon into its primal form.
How to find them
It is now available for all users as an obtainable item from opening mystery boxes.
How to use it
Giving a Groudon a Red Orb to hold will change it into its Primal Form.
- Red Orbs are tradeable
- You are able to remove a Red Orb from a Groudon to change it back to its normal form.