Gigantamax Grimmsnarl — Raid Guide

Quick summary

Introduction

Gigantamax Grimmsnarl is a Dark and Fairy-type raid boss in Pokémon GO, available during special Gigantamax events. Its towering form and wicked grin make it a memorable fight. It is weak to Fairy, Steel, and Poison-type Pokémon, offering trainers several strong counter options. This guide explains everything trainers need to beat Gigantamax Grimmsnarl reliably in Pokémon GO raids — from weaknesses and recommended Gigantamax counters to Dynamax picks, weather interactions, team-size guidance, and catch/reward tips.

Weaknesses & resistances

Category	Details
Weak to	Poison • Steel • Fairy
Resists	Ghost • Dark • Dragon • Psychic
Notes	Gigantamax bosses often use Max Moves — these can be powerful, sometimes buffing or changing battlefield conditions. Expect higher HP and potentially team-wide effects.

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Best Gigantamax Grimmsnarl Counters

Gigantamax-type Counters

• Toxtricity
• Charizard
• Kingler

Dynamax-type Counters

• Corviknight
• Toxtricity
• Metagross
• Machamp
• Rillaboom
• Entei

Best Gigantamax Counters

Gigantamax Pokémon that amplify the right types give you a powerful edge. Below are top Gigantamax counters with short notes on why they excel vs G-Max Grimmsnarl.

Pokémon	Fast Moves	Gigantamax Moves	Charged Moves	Elite Moves	Best Moves
Gigantamax Snorlax	Lick, Zen Headbutt	G-Max Replenish	Heavy Slam, Earthquake, Hyper Beam, Outrage, Skull Bash, Body Slam, Superpower	Yawn	Zen Headbutt(11) and G-Max Replenish(350)
Gigantamax Cinderace	Tackle, Fire Spin	G-Max Fireball	Flamethrower, Flame Charge, Focus Blast	-	Fire Spin(13) and G-Max Fireball(350)
Gigantamax Kingler	Metal Claw, Bubble	G-Max Foam Burst	Vise Grip, X-Scissor, Water Pulse, Crabhammer, Razor Shell	Mud Shot	Bubble(10) and G-Max Foam Burst(350)
Gigantamax Inteleon	Pound, Water Gun	G-Max Hydrosnipe	Shadow Ball, Water Pulse, Surf	-	Pound(6) and G-Max Hydrosnipe(350)
Gigantamax Machamp	Bullet Punch, Counter	G-Max Chi Strike	Cross Chop, Rock Slide, Close Combat, Dynamic Punch, Heavy Slam	Payback, Submission, Stone Edge, Karate Chop	Counter(13) and G-Max Chi Strike(350)
Gigantamax Blastoise	Bite, Water Gun, Rollout	G-Max Cannonade	Flash Cannon, Ice Beam, Hydro Pump, Skull Bash	Hydro Cannon	Rollout(15) and G-Max Cannonade(350)
Gigantamax Toxtricity	Spark, Poison Jab, Acid	G-Max Stun Shock	Acid Spray, Wild Charge, Discharge, Power-Up Punch	-	Poison Jab(13) and G-Max Stun Shock(350)
Gigantamax Charizard	Air Slash, Fire Spin	G-Max Wildfire	Overheat, Fire Blast, Dragon Claw	Dragon Breath, Ember, Wing Attack, Flamethrower, Blast Burn	Fire Spin (13) and G-Max Wildfire (350)
Gigantamax Lapras	Frost Breath, Water Gun, Psywave	G-Max Resonance	Blizzard, Hydro Pump, Surf, Skull Bash, Sparkling Aria	Ice Shard, Ice Beam, Dragon Pulse	Frost Breath(11) and G-Max Resonance(350)
Gigantamax Rillaboom	Razor Leaf, Scratch	G-Max Drum Solo	Grass Knot, Energy Ball, Earth Power	-	Razor Leaf(13) and G-Max Drum Solo(350)
Gigantamax Venusaur	Vine Whip, Razor Leaf	G-Max Vine Lash	Sludge, Petal Blizzard, Sludge Bomb, Solar Beam	Frenzy Plant	Razor Leaf(13) and G-Max Vine Lash(350)

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Dynamax & Support Picks

Not every raid group will have multiple Gigantamax picks. Dynamax Pokémon make excellent support, either by adding burst damage or soaking time during G-Max residual windows.

Pokémon	Dynamax Moves	Fast Moves	Charged Moves	Elite Moves
Dynamax Excadrill	Max Quake, Max Steelspike	Metal Claw, Mud Slap, Mud Shot	Rock Slide, Earthquake, Drill Run, Iron head, Scorching Sands	-
Dynamax Metagross	Max Mindstorm, Max Flutterby, Max Steelspike	Zen Headbutt, Bullet Punch, Fury Cutter	Flash Cannon, Psychic, Earthquake	Meteor Mash
Dynamax Zapdos	Max Lightning	Charge Beam	Zap Cannon, Thunder, Thunderbolt, Ancient Power, Drill Peck	Thunder Shock
Dynamax Corviknight	Max Airstream, Max Steelspike, Max Quake	Steel Wing, Air Slash, Sand Attack	Sky Attack, Payback	Air Cutter, Iron Head
Dynamax Raikou	Max Lightning	Thunder Shock, Volt Switch	Shadow Ball, Thunder, Thunderbolt, Wild Charge, Aura Sphere	-
Dynamax Moltres	Max Flare, Max Airstream	Fire Spin, Wing Attack	Fire Blast, Overheat, Heat Wave, Ancient Power	Sky Attack
Dynamax Entei	Max Flare	Fire Spin, Fire Fang	Flamethrower, Fire Blast, Overheat, Iron Head, Flame Charge, Scorching Sands	-
Dynamax Venusaur	Max Overgrowth	Razor Leaf, Vine Whip	Petal Blizzard, Sludge Bomb, Solar Beam, Sludge	Frenzy Plant
Dynamax Toxtricity	Max Lightning, Max Ooze	Acid, Spark, Poison Jab	Acid Spray, Discharge, Wild Charge, Power-Up Punch	-
Zamazenta	Behemoth Bash	Metal Claw, Ice Fang	Moonblast, Giga Impact, Close Combat	-
Eternatus	Dynamax Cannon	Dragon Tail, Poison Jab	Sludge Bomb, Dragon Pulse, Flamethrower	-
Zacian	Behemoth Blade	Metal Claw, Air Slash	Play Rough, Giga Impact, Close Combat	-
Dynamax Machamp	Max Knuckle, Max Steelspike	Bullet Punch, Counter	Heavy Slam, Dynamic Punch, Close Combat, Rock Slide, Cross Chop	Karate Chop, Stone Edge, Submission, Payback
Dynamax Rillaboom	Max Overgrowth, Max Strike	Scratch, Razor Leaf	Energy Ball, Grass Knot, Earth Power	-
Dynamax Kingler	Max Geyser, Max Quake, Max Steelspike	Metal Claw, Bubble	Vise Grip, Water Pulse, X-Scissor, Crabhammer, Razor Shell	Mud Shot

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Battle Tips

• Front-load your best Electric/Grass DPS to capitalize on early damage windows.
• Coordinate dodges only on heavy Max Moves — constant dodging reduces overall DPS in long fights.
• Star and favorite teams to reduce relobby time; players in large groups should communicate role.

Team Size

Recommended: 15–20 trainers for comfortable clears with mixed player levels. With many Gigantamax / Dynamax counters, 10–14 can work. Under 8 trainers should be attempted only if all participants are high-level and coordinated with ideal counters and Dynamax/G-Max boosts.

Why Raid Gigantamax Grimmsnarl?

Reasons include Pokédex entry, strong Dark / Fairy attacker, shiny chance, and XL Candy farming.

Raid Strategy & Catch Tips

Steel-types perform excellently, resisting Grimmsnarl’s Fairy and Dark attacks while dealing super-effective damage. Poison-types also work well.

Conclusion

Gigantamax Grimmsnarl is a mechanically interesting raid boss: its Dark/Fairy combo is predictable, but the G-Max residual damage forces teams to plan for survivability, not just pure DPS. Prioritize Poison and Steel Gigantamax picks, add Dynamax support for sustained windows, and include at least one high-TDO tank if your lobby is smaller. With the counters and tactics above, you’ll clear Grimmsnarl efficiently and maximize your rewards.