Weak toIceDragonFairy ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	72.5
Baxcalibur	DragonIce	Ice FangGlaive RushLegacy	56.1
Rayquaza	DragonFlying	Dragon TailBreaking SwipeLegacy	53.3
Haxorus	Dragon	Dragon TailBreaking SwipeLegacy	53.3
Palkia	WaterDragon	Dragon TailDraco Meteor	53.3
Salamence	DragonFlying	Dragon TailDraco Meteor	52.7
Dragonite	DragonFlying	Dragon TailDraco MeteorLegacy	50.2
Dragapult	DragonGhost	Dragon TailBreaking Swipe	50.1
Garchomp	DragonGround	Dragon TailBreaking Swipe	49.2
Reshiram	DragonFire	Dragon BreathDraco Meteor	48.3
Dialga	SteelDragon	Dragon BreathDraco Meteor	48.3
Enamorus	FairyFlying	Fairy WindDazzling Gleam	48.2

Windy boosts the Dragon attacks above. Windy boosts Bagon.

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

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

Questions people ask

What is Bagon weak to in Pokémon GO?

Bagon takes 1.6 times from Ice, Dragon and Fairy.

What's the best counter to Bagon?

Eternatus with Dragon Tail and Dynamax Cannon, worth 72.5 damage per second against Bagon's own defense. The full ranking is above.