Weak toFightingGroundSteelWaterGrass ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	27.2
Kartana	GrassSteel	Razor LeafLeaf Blade	26.0
Pheromosa	BugFighting	Low KickFocus Blast	24.9
Terrakion	RockFighting	Double KickSacred SwordLegacy	24.8
Blaziken	FireFighting	CounterAura Sphere	24.6
Metagross	SteelPsychic	Bullet PunchMeteor MashLegacy	23.8
Inteleon	Water	Water GunHydro CannonLegacy	23.4
Kyogre	Water	WaterfallOrigin PulseLegacy	23.3
Breloom	GrassFighting	Force PalmGrass KnotLegacy	23.3
Tinkaton	FairySteel	Fairy WindGigaton HammerLegacy	23.1
Groudon	Ground	Mud ShotPrecipice BladesLegacy	22.9
Conkeldurr	Fighting	Force PalmFocus Blast	22.7

Overcast boosts the Fighting attacks above. Partly cloudy boosts Garganacl.

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

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

Questions people ask

What is Garganacl weak to in Pokémon GO?

Garganacl takes 1.6 times from Fighting, Ground, Steel, Water and Grass.

What's the best counter to Garganacl?

Lucario with Force Palm and Aura Sphere, worth 27.2 damage per second against Garganacl's own defense. The full ranking is above.