Yamask and Cofagrigus, Galarian Yamask and Runerigus

A Special Research story — What Lies beneath the Mask? — is available during the Halloween 2021 event. Ghost type Pokémon are appearing more often than usual, and Professor Willow has tasked you with learning more about them.

This Special Research Story is available from 15th October 2021 10am local time, and is not time limited so will not expire.

‘What Lies Beneath the Mask?’ Special Research Tasks and Rewards

Stage 1

1 / 4
Catch 40 Ghost-type Pokémon 400 Stardust
Transfer 9 Pokemon Duskull
Make 49 Nice Throws 9 Ultra Balls
Stage rewards

Stage 2

2 / 4
Catch 40 Ghost-type Pokémon Pikachu
Make 9 Curveball Throws 490 Stardust
Use 49 Berries to help catch Pokémon Banette
Stage rewards

Stage 3

3 / 4
Catch 40 Ghost-type Pokémon 400 Stardust
Catch 9 Different Species of Ghost-type Pokémon Marowak (Alola)
Make 49 Great Throws 49 Pokéballs
Stage rewards

Stage 4

4 / 4
Claim Reward! 49 XP
Claim Reward! 490 XP
Claim Reward! 4900 XP
Stage rewards
  • 4 Yamask Candy
  • 9 Yamask Candy
  • 4900 Stardust

 

You may notice that there is a running theme of the number ’49’ throughout this research. This is due to Galarian Yamask’s evolution mechanic in the main series games. Galarian Yamask evolves into Runerigus when the player travels under the stone bridge in Dusty Bowl, after Yamask has taken at least 49 HP in damage without fainting.

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