Sparkling Stone
The Sparking Stone is a craft-able item used in spawning the 4 legendary "Guardian Pokemon" (Tapu Lele, Tapu Koko, Tapu Fini and Tapu Bulu)
To Craft this item, you need 8 Sparkling Shards and 1 Orb
To Charge this item, you need to kill 100 NPC Trainers, then you need to find the Tapu Shrine, while also having a Lunala, Solgaleo or Necrozma with full Happiness in your party.