Weak toGroundPsychic ×1.6

Attacker	Type	Moveset	DPS
Mewtwo	Psychic	ConfusionPsystrikeLegacy	47.1
Alakazam	Psychic	ConfusionPsychicLegacy	40.2
Groudon	Ground	Mud ShotPrecipice BladesLegacy	39.0
Azelf	Psychic	ConfusionFuturesight	39.0
Hoopa	PsychicGhost	ConfusionPsychic	38.8
Espeon	Psychic	ConfusionPsychic	38.8
Regigigas	Normal	Zen HeadbuttCrush GripLegacy	38.8
Lunala	PsychicGhost	ConfusionPsychic	38.0
Tapu Lele	PsychicFairy	ConfusionFuturesight	37.5
Latios	DragonPsychic	Zen HeadbuttPsychic	37.3
Excadrill	GroundSteel	Mud SlapEarthquake	37.1
Eternatus	PoisonDragon	Dragon TailDynamax CannonLegacy	36.8

Windy boosts the Psychic attacks above. Overcast boosts Seviper.

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

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

Questions people ask

What is Seviper weak to in Pokémon GO?

Seviper takes 1.6 times from Ground and Psychic.

What's the best counter to Seviper?

Mewtwo with Confusion and Psystrike, worth 47.1 damage per second against Seviper's own defense. The full ranking is above.