Weak toFireElectric ×1.6

Attacker	Type	Moveset	DPS
Blacephalon	FireGhost	IncinerateMind BlownLegacy	35.1
Regieleki	Electric	Lock OnThunder CageLegacy	32.8
Reshiram	DragonFire	Fire FangFusion FlareLegacy	29.2
Zeraora	Electric	Volt SwitchPlasma Fists	28.6
Zekrom	DragonElectric	Charge BeamFusion BoltLegacy	27.9
Xurkitree	Electric	Thunder ShockDischarge	27.6
Chandelure	GhostFire	Fire SpinOverheat	26.7
Cinderace	Fire	Fire SpinPyroball	26.4
Volcarona	BugFire	Fire SpinOverheat	26.1
Darmanitan	Fire	Fire FangOverheat	26.0
Blaziken	FireFighting	Fire SpinBlast BurnLegacy	25.1
Moltres	FireFlying	Fire SpinOverheat	24.9

Rainy boosts the Electric attacks above. Snow and Windy boost Corviknight.

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

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

Questions people ask

What is Corviknight weak to in Pokémon GO?

Corviknight takes 1.6 times from Fire and Electric.

What's the best counter to Corviknight?

Blacephalon with Incinerate and Mind Blown, worth 35.1 damage per second against Corviknight's own defense. The full ranking is above.