Pokémon have always had various ways of evolving into new beasties, and pokémon sword and shield are no different.
19+ Pokemon Sword Yamask Won't Evolve Pics. I took it to the pokémon center, went to the dusty bowl, then. Yamask gets a slight change in pokemon sword in shield with it's galarian form.
This will cause it to take more damage from ghost, dark type. This guide tells you how to evolve yamask into runerigus in pokemon sword & shield as it's arguably one of the most intriguing evolution mechanics in the game, requiring some working out to pull off. The galarian form of yamask won't.
Presently has more than 49 hit points in damage received in one battle.
To evolve your galarian yamask in pokémon sword and shield, it needs to take at least 49 damage and then get taken to the dusty bowl in the wild area. Yamask is a ghost type pokemon. Find out evolve conditions, locations, and more to evolve into runerigus! I made sure it took 49+ damage from a battle (a dugtrio's attack to be specific) and i walked under the large rock formation in dusty bowl, but it won't evolve.