Weak toPoison ×2.56FlyingSteelFireIce ×1.6

Attacker	Type	Moveset	DPS
Eternatus	PoisonDragon	Poison JabSludge Bomb	65.5
Naganadel	PoisonDragon	Poison JabSludge Bomb	62.2
Nihilego	RockPoison	Poison JabSludge Bomb	59.1
Roserade	GrassPoison	Poison JabSludge Bomb	57.7
Munkidori	PoisonPsychic	Poison JabSludge Bomb	56.6
Revavroom	SteelPoison	Poison JabGunk Shot	54.4
Blacephalon	FireGhost	IncinerateMind BlownLegacy	54.3
Overqwil	DarkPoison	Poison JabSludge Bomb	53.0
Okidogi	PoisonFighting	Poison JabSludge Bomb	52.6
Toxicroak	PoisonFighting	Poison JabSludge Bomb	50.6
Salazzle	PoisonFire	Poison JabSludge Wave	49.2
Scolipede	BugPoison	Poison JabSludge Bomb	48.8

Overcast boosts the Poison attacks above. Clear and Overcast boost Morelull.

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

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

Questions people ask

What is Morelull weak to in Pokémon GO?

Morelull takes 2.56 times damage from Poison, and 1.6 times from Flying, Steel, Fire and Ice.

What's the best counter to Morelull?

Eternatus with Poison Jab and Sludge Bomb, worth 65.5 damage per second against Morelull's own defense. The full ranking is above.