Question: is tapu koko a legendary?
Answer: Tapu Koko (Japanese: カプ・コケコ Kapu-Kokeko) is a dual-type Electric/Fairy Legendary Pokémon introduced in Generation VII. It is not known to evolve into or from any other Pokémon. It is the guardian deity of Melemele Island, with Tapu Lele, Tapu Bulu, and Tapu Fini being the deities of the other islands.