While there’s no shortage of Legendary Pokemon in ’Pokemon Go,’ only a few have the ability to evolve into their final forms. That’s certainly the case with Cosmog, the Psychic-type Nebula Pokemon that was recently added to the game as part of the Season of Light event. But how do you actually evolve Cosmog? Unfortunately, it’s not as easy as simply walking with the Pokemon and using Rare Candy on it. Instead, players have to complete the special research task that Cosmog comes with in order to reach its final form.
Fortunately, those who missed out on the chance to receive a free Cosmog as a reward during the event can still earn one by completing Steps 5 through 8 of the A Cosmic Companion special research quest, or by obtaining 25 of the Pokemon through Rare Candy or having it as a Buddy. Once players have accumulated enough Cosmog Candy, they can then use it to evolve the Pokemon into Solgaleo or Lunala.
Evolving Cosmog into Solgaleo will require 100 of the Candy, while evolving it into Lunala requires 125 of the Candy. It’s important to note that the final evolution you choose will only be available once, and the decision cannot be reversed. Additionally, it’s worth noting that the Evolution process will only work if it is night time in your local area at the point when you evolve Cosmog/Cosmoem.
Once you’ve evolved the Pokemon into either Solgaleo or Lunala, it will be a permanent addition to your Pokedex and will able to battle in Raids like any other Legendary or Mythical Pokémon. However, players will need to carefully consider which of the two evolutions they want to unlock as the choice will have a significant impact on their Pokemon’s type weakness (Lunala is more susceptible to Dark and Ghost-type moves, while Solgaleo has quadruple weaknesses to Fighting-type moves).