Quick summary
Species: Blastoise (Gigantamax)
Type: Water
Primary weaknesses: Electric, Grass
Recommended lobby: 15-20 trainers
Gigantamax Blastoise is a Water-type raid boss in Pokémon GO, bringing a gigantic hydro-powered presence to the battlefield. With its massive cannons and impressive HP, this Pokémon can be a challenge if you’re unprepared. This guide will show you the best counters, movesets, and strategies to take it down efficiently.
Table of Contents
Weakness Best Pokemon Best Gigantamax Counters Dynamax & Support Picks Moveset Weather Effects Size Rewards FAQsOverview
Blastoise’s Gigantamax form amplifies its role as a Water-type tank: massive HP pool, strong water STABs (e.g., Hydro Pump / Origin Pulse analogues) and potential secondary coverage like Ice Beam or Flash Cannon in event variants. In raid fights, expect longevity—clear time comes down to efficient sustained damage, energy economy, and smart shield use. While purely Water strong counters dominate, be ready for mixed coverage if the charged-move preview shows secondary types.
Pro tip: For Gigantamax Blastoise, Hydro-based boss moves reward Ground-lite thinking only in rare variants; primarily stack Electric and Grass counters unless preview shows Ice/Steel moves.
Weakness & Typing
| Category | Details |
|---|---|
| Weak to |
 Electric •
 Grass
|
| Resists |
 Fire •
 Water •
 Ice •
 Steel
|
| 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. |
Pro tip: Use Electric or Grass-type Pokémon to exploit its weaknesses and end the raid faster.
Best Pokemon
Gigantamax-type Counters
- Toxtricity (Spark / G-Max Stun Shock)
- Rillaboom (Scratch / G-Max Drum Solo)
- Flapple (Dragon Breath / G-Max Tartness)
Dynamax-type Counters
- Zapdos (Thunder Shock / Max Lightning)
- Raikou (Volt Switch / Max Lightning)
- Rillaboom (Razor Leaf / Max Overgrowth)
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 Blastoise.
| Pokémon | Fast Moves | Gigantamax Moves | Charged Moves | Elite Moves | Best Moves |
|---|---|---|---|---|---|
| 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 Toxtricity | Spark, Poison Jab, Acid | G-Max Stun Shock | Discharge, Wild Charge, Acid Spray, Power Up Punch | - | Poison Jab(13) and G-Max Stun Shock(350) |
| Gigantamax Flapple | Dragon Breath, Bullet Seed | G-Max Tartness | Seed Bomb, Dragon Pulse, Outrage, Fly | - | Bullet Seed(7) and G-Max Tartness(350) |
| Gigantamax Gengar | Sucker Punch, Shadow Claw, Hex | G-Max Terror | Shadow Ball, Sludge Bomb, Focus Blast, Drain Punch | Lick, Dark Pulse, Shadow Punch, Sludge Wave, Psychic | Hex(8) and G-Max Terror(350) |
| Gigantamax Appletun | Astonish, Bullet Seed | G-Max Sweetness | Seed Bomb, Dragon Pulse, Energy Ball, Outrage | - | Astonish / Bullet Seed(7) and G-Max Sweetness(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) |
| Gigantamax Duraludon | Metal Claw, Dragon Tail | G-Max Depletion | Hyper Beam, Flash Cannon, Dragon Claw | - | Dragon Tail(14) and G-Max Depletion(350) |
| Gigantamax Alcremie | Tackle, Charm | G-Max Finale | Psyshock, Dazzling Gleam, Energy Ball | - | Charm(20) and G-Max Finale(350) |
| Gigantamax Grimmsnarl | Bite, Sucker Punch, Low Kick | G-Max Snooze | Dark Pulse, Play Rough, Foul Play, Power Up Punch | - | Bite(6) and G-Max Snooze(350) |
| Gigantamax Hatterene | Psycho Cut, Confusion, Charm | G-Max Smite | Psyshock, Dazzling Gleam, Psychic, Power Whip | - | Charm(20) and G-Max Smite(350) |
| Gigantamax Machamp | Bullet Punch, Counter | G-Max Chi Strike | Cross Chop, Rock Slide, Close Combat, Dynamic Punch, Heavy Slam | Karate Chop, Stone Edge, Submission, Payback | Counter(13) and G-Max Chi Strike(350) |
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 Moltres | Max Flare, Max Airstream | Fire Spin, Wing Attack | Fire Blast, Overheat, Heat Wave, Ancient Power | Sky Attack |
| Dynamax Ivysaur | Max Overgrowth | Razor Leaf, Vine Whip | Power Whip, Sludge Bomb, Solar Beam | - |
| Dynamax Jolteon | Max Lightning | Thunder Shock, Volt Switch | Discharge, Thunderbolt, Thunder | Last Resort, Zap Cannon |
| Dynamax Leafeon | Max Overgrowth | Quick Attack, Razor Leaf | Solar Beam, Leaf Blade, Energy Ball | Bullet Seed, Last Resort |
| Dynamax Urshifu | Max Geyser, Max Knuckle | Rock Smash, Counter, Waterfall | Brick Break, Dynamic Punch, Close Combat, Aqua Jet | - |
| Dynamax Urshifu | Max Geyser, Max Knuckle | Rock Smash, Counter, Waterfall | Brick Break, Dynamic Punch, Close Combat, Aqua Jet | - |
| Dynamax Gengar | Max Darkness, Max Phantasm | Sucker Punch, Hex, Shadow Claw | Focus Blast, Shadow Ball, Sludge Bomb, Drain Punch, Shadow Punch | Lick, Psychic, Dark Pulse, Sludge Wave |
| Dynamax Metagross | Max Mindstorm, Max Flutterby, Max Steelspike | Zen Headbutt, Bullet Punch, Fury Cutter | Flash Cannon, Psychic, Earthquake | Meteor Mash |
| Dynamax Excadrill | Max Quake, Max Steelspike | Metal Claw, Mud Slap, Mud Shot | Rock Slide, Earthquake, Drill Run, Iron Head, Scorching Sands | - |
| Dynamax Thwackey | Max Strike, Max Overgrowth | Scratch, Razor Leaf | Energy Ball, Grass Knot | - |
| Dynamax Latios | Max Wyrmwind, Max Mindstorm | Dragon Breath, Zen Headbutt | Psychic, Solar Beam, Dragon Claw, Aura Sphere | Luster Purge |
| Eternatus | Dynamax Cannon | Dragon Tail, Poison Jab | Sludge Bomb, Dragon Pulse, Flamethrower | - |
| 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 | - |
| Dynamax Rillaboom | Max Overgrowth, Max Strike | Scratch, Razor Leaf | Energy Ball, Grass Knot, Earth Power | - |
| Dynamax Zapdos | Max Lightning | Charge Beam | Zap Cannon, Thunder, Thunderbolt, Ancient Power, Drill Peck | Thunder Shock |
| Dynamax Raikou | Max Lightning | Thunder Shock, Volt Switch | Shadow Ball, Thunder, Thunderbolt, Wild Charge, Aura Sphere | - |
Moves & Threats
Blastoise common fast moves are Rollout or Water Gun and Bite. Charged moves include Skull Bash or Flash Cannon or Hydro Pump and Ice Beam. Elite moves include Hydro Cannon. G-Max Cannonde not only delivers heavy damage but also leaves a damaging area for a short time — timing your swaps and using at least one bulky support reduces wipe risk.
Threat: Hydro Pump can deal heavy damage to unresisting Pokémon.
Pro tip: Lead with Electric-types like Zapdos or Raikou to maximize damage and energy generation.
Weather Effects & Battle Flow
Rainy weather : boosts Blastoise Water moves. Sunny weather : boosts Grass attackers.
Watch for Ice Beam, which punishes Grass-type counters heavily. Balance your team with Electric attackers.
Practical Battle Tips
- Avoid Water-types—they’ll be ineffective.
- Dodge charged Hydro Pump for efficiency.
- Coordinate with other trainers for a faster clear.
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 Mega/Dynamax/G-Max boosts.
Rewards
Reasons include Pokédex entry, strong Water attacker, shiny chance, and XL Candy farming.
When To Avoid
Avoid Ground, Fire, and Rock Pokémon — they take heavy damage from Blastoise’s Water moves.
Raid Strategy & Catch Tips
Gigantamax Blastoise’s bulk makes raids tough. Focus on Electric types for consistent damage, with Grass support when Ice Beam isn’t in play. Dodge G-Max Cannonade’s chip damage to extend survival.
FAQ
What is Gigantamax Blastoise type and weakness?
Blastoise is a Water type. It is weak to Electric, Grass.
What are good counters for G-Max Cannonde?
Strong electric and grass attackers such as Gigantamax Rillaboom, Gigantamax Toxtricity, Gigantamax Flapple, Gigantamax Venusaur, Dynamax Zapdos, Dynamax Raikou.
Can Gigantamax Blastoise be shiny?
Yes, but in certain events.
Is Gigantamax Blastoise catchable after the raid?
Yes — standard raid catch mechanics apply.
Does weather change move sets?
Rainy boosts Blastoise’s Water moves; Sunny boosts Grass counters.
Does Blastoise keep G-Max Cannonade?
No — it’s exclusive to Gigantamax raids.
Conclusion
Gigantamax Blastoise is a mechanically interesting raid boss: its Water type is predictable, but the G-Max residual damage forces teams to plan for survivability, not just pure DPS. Prioritize Electric and Grass 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 Blastoise efficiently and maximize your rewards.
Related Guides
Looking for more counters? Check out our Gigantamax Rillaboom Raid Guide, Gigantamax Toxtricity Raid Guide, Gigantamax Flapple Raid Guide
Summary
- Electric and Grass-types are most effective.
- Avoid using Water-types as attackers.
- Dodge Hydro Pump and charged moves.
- Use weather boosts for maximum damage.