Weak toFighting ×2.56BugFairy ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	47.2
Pheromosa	BugFighting	Low KickFocus Blast	43.2
Terrakion	RockFighting	Double KickSacred SwordLegacy	43.1
Blaziken	FireFighting	CounterAura Sphere	42.7
Kartana	GrassSteel	Fury CutterSacred Sword	40.8
Conkeldurr	Fighting	Force PalmFocus Blast	39.4
Keldeo	WaterFighting	Low KickSacred Sword	39.0
Breloom	GrassFighting	Force PalmDynamic Punch	38.9
Urshifu	Fighting	CounterDynamic Punch	38.6
Marshadow	FightingGhost	CounterClose Combat	37.7
Mewtwo	Psychic	CounterFocus BlastLegacy	37.6
Machamp	Fighting	CounterDynamic Punch	35.7

Overcast boosts the Fighting attacks above. Fog and Partly cloudy boost Obstagoon.

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

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

Questions people ask

What is Obstagoon weak to in Pokémon GO?

Obstagoon takes 2.56 times damage from Fighting, and 1.6 times from Bug and Fairy.

What's the best counter to Obstagoon?

Lucario with Force Palm and Aura Sphere, worth 47.2 damage per second against Obstagoon's own defense. The full ranking is above.