Weak toPoisonSteelFairy ×1.6

Attacker	Type	Moveset	DPS
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	67.1
Eternatus	PoisonDragon	Poison JabSludge Bomb	65.3
Metagross	SteelPsychic	Bullet PunchMeteor MashLegacy	64.2
Naganadel	PoisonDragon	Poison JabSludge Bomb	62.0
Enamorus	FairyFlying	Fairy WindDazzling Gleam	62.0
Lucario	FightingSteel	Force PalmMeteor MashLegacy	61.0
Nihilego	RockPoison	Poison JabSludge Bomb	58.9
Tapu Koko	ElectricFairy	Volt SwitchNatures MadnessLegacy	58.1
Zacian	FairySteel	Metal ClawPlay Rough	57.6
Roserade	GrassPoison	Poison JabSludge Bomb	57.5
Dialga	SteelDragon	Metal ClawIron Head	56.8
Munkidori	PoisonPsychic	Poison JabSludge Bomb	56.4

Overcast boosts the Poison attacks above. Fog and Overcast boost Impidimp.

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

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

Questions people ask

What is Impidimp weak to in Pokémon GO?

Impidimp takes 1.6 times from Poison, Steel and Fairy.

What's the best counter to Impidimp?

Tinkaton with Fairy Wind and Gigaton Hammer, worth 67.1 damage per second against Impidimp's own defense. The full ranking is above.