Weak toFightingWaterGrassIce ×1.6

Attacker	Type	Moveset	DPS
Lucario	FightingSteel	Force PalmAura SphereLegacy	31.5
Kartana	GrassSteel	Razor LeafLeaf Blade	30.1
Pheromosa	BugFighting	Low KickFocus Blast	28.8
Terrakion	RockFighting	Double KickSacred SwordLegacy	28.7
Blaziken	FireFighting	CounterAura Sphere	28.5
Inteleon	Water	Water GunHydro CannonLegacy	27.1
Kyogre	Water	WaterfallOrigin PulseLegacy	27.0
Breloom	GrassFighting	Force PalmGrass KnotLegacy	27.0
Conkeldurr	Fighting	Force PalmFocus Blast	26.2
Keldeo	WaterFighting	Low KickSacred Sword	26.0
Urshifu	Fighting	CounterDynamic Punch	25.7
Roserade	GrassPoison	Magical LeafLeaf Storm	25.7

Overcast boosts the Fighting attacks above. Clear and Partly cloudy boost Ursaluna.

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

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

Questions people ask

What is Ursaluna weak to in Pokémon GO?

Ursaluna takes 1.6 times from Fighting, Water, Grass and Ice.

What's the best counter to Ursaluna?

Lucario with Force Palm and Aura Sphere, worth 31.5 damage per second against Ursaluna's own defense. The full ranking is above.