This attack's damage isn't affected by Poké-Powers, Poké-Bodies, or any other effects on the Defending Pokémon.
Darkness Howl
Damage
This attack does 20 damage to each Pokémon in play (both yours and your opponent's) (excluding any Darkness Pokémon). (Don't apply Weakness and Resistance for Benched Pokémon.)
Disclaimer: The following data is based on sale history from a third party source. Data is updated about every 5 days. This data does not serve as a value guarantee.