How to Evolve Yamask

Unovan Yamask follows a traditional progression path. It evolves into Cofagrigus automatically upon reaching level 34. No evolutionary stones, specific times of day, or friendship thresholds apply to this form.

If you cancel the evolution by pressing B, the Pokémon will attempt to evolve again at every subsequent level-up. Players using Eviolite on Yamask for Little Cup formats must continuously cancel this animation.

In games where Galarian Yamask is the native species, you can obtain the Unovan form by trading with specific in-game NPCs. Once acquired, the level 34 requirement remains identical across all generations.

The Galarian variant abandons level requirements for a highly specific damage mechanic. Your Yamask must take at least 49 HP of damage from direct enemy attacks in a single battle without fainting.

• Self-inflicted recoil damage does not count toward the 49 HP requirement.
• Environmental damage from weather conditions like Hail or Sandstorm is ignored.
• Status effect damage from Poison or Burn will not trigger the evolution condition.

You cannot heal the Pokémon after the battle concludes. It must retain the missing 49+ HP in your party to successfully trigger the final location-based step.

Safely hitting the 49 HP damage threshold requires preparation, especially if your Yamask has low defensive stats. Equipping a Focus Sash guarantees the Pokémon survives a lethal hit with exactly 1 HP, instantly fulfilling the requirement if its maximum HP is 50 or higher.

Alternatively, battle wild Pokémon in lower-level areas while using a high-level Yamask. This allows you to absorb multiple weak hits to carefully reach the 49 HP deficit without risking a knockout.

Always disable auto-heal features or avoid using Potions before traveling to the next destination. Healing the damage resets the counter, forcing you to take the damage all over again.

Once the 49 HP damage requirement is met, travel to the Dusty Bowl zone within the Galar Wild Area. Locate the massive stone archway situated near the center of the zone.

Walk your character directly under this stone structure while the damaged Yamask remains in your active party. The evolution sequence into Runerigus will initiate immediately upon crossing the threshold.

You do not need to have the Pokémon in the lead party slot. As long as it is in your team and meets the damage criteria, the location trigger works seamlessly.

Cofagrigus operates as a dedicated Physical Wall and Trick Room setter (Rating: 7/10). Its massive base 145 Defense and access to Will-O-Wisp allow it to cripple physical sweepers effectively.

• Pros: The Mummy ability strips opponents of crucial contact-based abilities like Huge Power or Parental Bond. It also serves as an excellent spinblocker.
• Cons: It lacks reliable recovery outside of Pain Split. It is highly vulnerable to Knock Off and Taunt.

This Pokémon fits best on stall or Trick Room teams needing a reliable pivot against physical attackers. It is not recommended for hyper-offense builds that require immediate damage output.

Runerigus serves as a Bulky Hazard Setter and Spinblocker (Rating: 6.5/10). Its Ghost/Ground typing provides three critical immunities, granting safe switch-ins against Normal, Fighting, and Electric moves.

• Pros: Reliably sets Stealth Rock, Spikes, and Toxic Spikes. The Wandering Spirit ability punishes attackers by stealing their abilities on contact.
• Cons: Weak to common Water, Grass, Dark, and Ghost attacks. A low base 50 Speed makes it easily revenge-killed.

It suits balance teams needing entry hazards but struggles against fast special breakers. Players should avoid using Runerigus against dedicated special sweepers.