From PokéHeroes Wiki
How to obtain it
You can obtain a Shiny Charm by completing the third Badge set.
How to use it
The Shiny Charm is a Key Item so it will always be in effect and is not possible to turn off.
- Shiny Charm is not tradeable - it is a key item.
- The Shiny Charm will still be in effect even if you're not a premium.