Weak toFightingBugFairy ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	50.2
Pheromosa	BugFighting	Bug BiteFocus Blast	48.8
Kartana	GrassSteel	Fury CutterSacred Sword	47.7
Terrakion	RockFighting	Double KickSacred SwordLegacy	45.7
Blaziken	FireFighting	CounterAura Sphere	45.4
Enamorus	FairyFlying	Fairy WindDazzling Gleam	42.3
Conkeldurr	Fighting	Force PalmFocus Blast	41.8
Keldeo	WaterFighting	Low KickSacred Sword	41.4
Breloom	GrassFighting	Force PalmDynamic Punch	41.3
Urshifu	Fighting	CounterDynamic Punch	41.0
Eternatus	PoisonDragon	Poison JabDynamax CannonLegacy	40.7
Marshadow	FightingGhost	CounterClose Combat	40.0

Overcast boosts the Fighting attacks above. Fog boosts Maschiff.

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

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

Questions people ask

What is Maschiff weak to in Pokémon GO?

Maschiff takes 1.6 times from Fighting, Bug and Fairy.

What's the best counter to Maschiff?

Lucario with Force Palm and Aura Sphere, worth 50.2 damage per second against Maschiff's own defense. The full ranking is above.