Weak toPoisonSteel ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Poison JabSludge Bomb	23.9
Metagross	SteelPsychic	Bullet PunchMeteor MashLegacy	23.4
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	22.8
Naganadel	PoisonDragon	Poison JabSludge Bomb	22.6
Lucario	FightingSteel	Bullet PunchMeteor Mash	21.6
Nihilego	RockPoison	Poison JabSludge Bomb	21.5
Roserade	GrassPoison	Poison JabSludge Bomb	21.0
Dialga	SteelDragon	Metal ClawIron Head	20.8
Munkidori	PoisonPsychic	Poison JabSludge Bomb	20.6
Regigigas	Normal	Hidden PowerCrush GripLegacy	20.4
Genesect	BugSteel	Metal ClawMagnet Bomb	20.3
Revavroom	SteelPoison	Poison JabGunk Shot	19.8

Snow boosts the Steel attacks above. Overcast boosts Comfey.

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

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

Questions people ask

What is Comfey weak to in Pokémon GO?

Comfey takes 1.6 times from Poison and Steel.

What's the best counter to Comfey?

Eternatus with Poison Jab and Sludge Bomb, worth 23.9 damage per second against Comfey's own defense. The full ranking is above.