How to obtain Cosmog

Obtaining Cosmog

To obtain Cosmog, buy the Old Sea Map at the Battle Frontier shop and play as Elio or Selene. Put Alolan Decidueye, Incineroar and Primarina in the first three party slots, in that order, and fill the remaining slots with generation-seven Pokémon. Bring at least five Pokémon.

Use the S.S. Tidal to travel to Faraway Island. After landing, take the path on the left and interact with the bag to make Cosmog appear.