Weak toGroundRockWater ×1.6

Attacker	Type	Moveset	DPS
Inteleon	Water	Water GunHydro CannonLegacy	46.6
Kyogre	Water	WaterfallOrigin PulseLegacy	46.5
Glimmora	RockPoison	Rock ThrowMeteor Beam	45.9
Groudon	Ground	Mud ShotPrecipice BladesLegacy	45.6
Rampardos	Rock	Smack DownRock Slide	45.4
Kingler	Water	BubbleCrabhammer	44.1
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	44.0
Greninja	WaterDark	Water ShurikenHydro CannonLegacy	43.9
Gigalith	Rock	Lock OnMeteor BeamLegacy	43.6
Excadrill	GroundSteel	Mud SlapEarthquake	43.3
Rhyperior	GroundRock	Mud SlapRock WreckerLegacy	42.6
Tyrantrum	RockDragon	Rock ThrowMeteor Beam	42.5

Rainy boosts the Water attacks above. Clear boosts Magby.

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

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

Questions people ask

What is Magby weak to in Pokémon GO?

Magby takes 1.6 times from Ground, Rock and Water.

What's the best counter to Magby?

Inteleon with Water Gun and Hydro Cannon, worth 46.6 damage per second against Magby's own defense. The full ranking is above.