Weak toGrassElectric ×1.6

Attacker	Type	Moveset	DPS
Regieleki	Electric	Lock OnThunder CageLegacy	44.8
Zeraora	Electric	Volt SwitchPlasma Fists	38.5
Kartana	GrassSteel	Razor LeafLeaf Blade	38.3
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	37.6
Xurkitree	Electric	Thunder ShockDischarge	37.1
Roserade	GrassPoison	Magical LeafLeaf Storm	32.7
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	32.5
Deoxys	Psychic	Charge BeamThunderbolt	32.3
Electivire	Electric	Thunder ShockWild Charge	32.1
Zarude	DarkGrass	Vine WhipPower Whip	32.0
Rillaboom	Grass	Razor LeafFrenzy PlantLegacy	31.7
Raikou	Electric	Volt SwitchWild Charge	31.3

Rainy boosts the Electric attacks above. Rainy boosts Prinplup.

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

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

Questions people ask

What is Prinplup weak to in Pokémon GO?

Prinplup takes 1.6 times from Grass and Electric.

What's the best counter to Prinplup?

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