Secret Sword's can be used to change Keldeo into it's Resolute Form.
How to find them
Secret Sword's can rarely be found in Mystery Boxes.
How to use it
The Secret Sword can be used to change Keldeo into it's Resolute Form. This can be done by giving a Keldeo the item to hold and it will change forms. If the item is removed from the Resolute Keldeo, it will go back to it's original form.
- Secret Sword are tradeable.