Weak toRockElectricIceFairy ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	44.8
Zeraora	Electric	Volt SwitchPlasma Fists	38.5
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	37.6
Xurkitree	Electric	Thunder ShockDischarge	37.1
Tapu Koko	ElectricFairy	Volt SwitchNatures MadnessLegacy	35.2
Glimmora	RockPoison	Rock ThrowMeteor Beam	33.9
Enamorus	FairyFlying	Fairy WindDazzling Gleam	33.8
Rampardos	Rock	Smack DownRock Slide	33.6
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	32.5
Deoxys	Psychic	Charge BeamThunderbolt	32.3
Gigalith	Rock	Lock OnMeteor BeamLegacy	32.3
Electivire	Electric	Thunder ShockWild Charge	32.1

Rainy boosts the Electric attacks above. Fog and Windy boost Vullaby.

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

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

Questions people ask

What is Vullaby weak to in Pokémon GO?

Vullaby takes 1.6 times from Rock, Electric, Ice and Fairy.

What's the best counter to Vullaby?

Regieleki with Lock On and Thunder Cage, worth 44.8 damage per second against Vullaby's own defense. The full ranking is above.