Description
The guardian deities (Japanese: 守り神 guardian deity) are Legendary Pokémon in the Alola region who protect the islands where they live. Each of the four main islands in Alola has a guardian deity: Tapu Koko on Melemele Island, Tapu Lele on Akala Island, Tapu Bulu on Ula'ula Island, and Tapu Fini on Poni Island. The Island Kahunas are each chosen by their island's guardian deity.
They are also referred to as the tapu (Japanese: カプ kapu), the guardians (Japanese: 守り神 guardian deity), the sacred guardians (Japanese: 守り神 guardian deity), the island guardians (Japanese: 島の守り神 island's guardian deity), the spirit guardians (Japanese: 守り神 guardian deity), the land spirits (Japanese: とちがみポケモン Land Spirit Pokémon), or the guardian tapu (Japanese: 島の守り神 カプ island's guardian deity kapu).
The guardian deities are known to take part in battles to decide who is the strongest of them all, and this inspired humans to create the Battle Royal format.