The Pokémon Company recently revealed an all-new Dusk Form for Lycanroc, which will be one of the new additions to the upcoming Pokémon Ultra Sun and Pokémon Ultra Moon versions.
You can read more about Dusk Form Lycanrock, the special Rockruff, and other details on the official website.
That involves getting a special Rockruff from the Nintendo Network between the game’s November 17 launch and January 10, 2018.