How to evolve Yamask in Cobblemon.
Yamask evolves into Cofagrigus when it reaches level 34.
Evolution line
YamaskWhat Yamask needs
1 path
CofagrigusLevel up
Level 34
Moves it learns on evolving
Scary FaceShadow Claw
These are offered the moment the evolution completes. Decline them and you have to relearn them later.
Is it worth it
Yamask nowghost303
Cofagrigusghost483
Base stat totals, from the Cobblemon 1.7.3 species files.