Weak toGhostDark ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	AstonishShadow Ball	33.2
Darkrai	Dark	SnarlShadow Ball	29.9
Chandelure	GhostFire	HexShadow Ball	29.6
Gengar	GhostPoison	LickShadow BallLegacy	29.6
Absol	Dark	SnarlBrutal SwingLegacy	29.0
Dragapult	DragonGhost	AstonishShadow Ball	28.3
Hoopa	PsychicGhost	AstonishShadow Ball	27.8
Lunala	PsychicGhost	Shadow ClawShadow Ball	27.7
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	27.7
Gholdengo	SteelGhost	HexShadow Ball	27.7
Zoroark	Dark	SnarlFoul Play	27.6
Chi-Yu	DarkFire	SnarlDark Pulse	27.5

Fog boosts the Ghost attacks above. Fog boosts Duskull.

Level 40, 15 attack IV, costed against Duskull's own defense and typing, one per evolution family.

Duskull's moveset, CP and shiny All counters Raid board

Questions people ask

What is Duskull weak to in Pokémon GO?

Duskull takes 1.6 times from Ghost and Dark.

What's the best counter to Duskull?

Blacephalon with Astonish and Shadow Ball, worth 33.2 damage per second against Duskull's own defense. The full ranking is above.