Yamask in Pokémon GO
By Matt · Updated Quick answer
Yamask is Ghost type, so it's weak to Dark and Ghost.
What is Yamask weak to?
Yamask is Ghost type, so it takes extra damage from Dark and Ghost attacks.
Defending Yamask 
Ghost
Ghost Hits it hard
-
Dark160% damage 1.6× - Ghost160% damage 1.6×
Bounces off
-
Fighting39.1% damage -
Normal39.1% damage -
Bug62.5% damage -
Poison62.5% damage
Leave Fighting, Normal, Bug and Poison attackers at home: Yamask resists them, and Fighting and Normal barely scratch it.
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FAQ
What is Yamask weak to in Pokémon GO?
Yamask is Ghost type. It's weak to Dark and Ghost. It resists Fighting, Normal, Bug and Poison.
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