Pokemon Sword & Shield: How to Evolve Yamask into Runerigus - IGN
Date published: 2019-11-22 Originally published: Here. Excerpt below.
["Yamask gets a slight change in Pokemon Sword in Shield with it's Galarian form. This fresh new look will not naturally evolve into Cofagrigus. Instead, Galarian Yamask will only evolve into Runerigus by means of some special circumstances. Here's what you nee… [+28 chars]"]