Sapphire Shard

What it does: Unlocks Articuno and Regigigas on maps. Unlocks Shiny/Dark Piplup in Secret Swap.

How to use: Attach it to your starter and search the maps. Swap your starter holding it for a low chance to get Shiny/Dark Piplup.

How to get it: Combine 10 Sapphire Fragments at the Research Lab