Shadow Groudon makes its highly anticipated debut in Pokémon GO during the Shadow Raid Weekend event on September 20-21, 2025. This legendary Ground-type Pokémon brings incredible power to the battlefield, and for the first time ever, trainers can encounter its shiny variant. Here’s everything you need to dominate these challenging shadow raids.

Pokémon GO Shadow Groudon Raid Overview

Shadow Groudon features in Pokémon GO during a special Shadow Raid Day event on Saturday, September 20, 2025, and Sunday, September 21, 2025, marking the first time this legendary appears in shadow form. As a 5-star Shadow Raid Boss, it requires coordinated team efforts and strategic counter selection.

Shadow Groudon Weaknesses & Type Effectiveness

To take down Shadow Groudon raids in Pokemon GO you must use powerful Water-, Grass-, or Ice-type attackers. Being a pure Ground-type Pokémon, Shadow Groudon is vulnerable to specific move types that deal super effective damage.

Type Effectiveness Chart

Attack Type	Damage Multiplier	Effectiveness
Water	2x	Super Effective
Grass	2x	Super Effective
Ice	2x	Super Effective
Electric	0.5x	Not Very Effective
Poison	0.5x	Not Very Effective
Rock	0.5x	Not Very Effective

Best Shadow Groudon Counters

We would highly recommend the use of Mega Evolved Pokémon in Shadow Groudon raids. They provide not only greater damage output, but also boost Pokémon of the same typing in the raid.

Top Tier Counters:

Mega Swampert (Water Gun/Hydro Cannon)
Mega Blastoise (Water Gun/Hydro Cannon)
Primal Kyogre (Waterfall/Origin Pulse)
Mega Venusaur (Vine Whip/Frenzy Plant)
Mega Abomasnow (Powder Snow/Weather Ball)

Excellent Non-Mega Options:

Kyogre (Waterfall/Surf)
Swampert (Water Gun/Hydro Cannon)
Gyarados (Waterfall/Hydro Pump)
Roserade (Razor Leaf/Grass Knot)
Mamoswine (Powder Snow/Avalanche)

Perfect IV & CP Values

Groudon hundo CP (100% IV) from Raid encounters is 2351 CP, and 2939 CP when weather boosted. For Shadow Groudon specifically, it can be caught with an IV floor of 7/7/7 (IVs boosted during Shadow Groudon Raid Weekend).

Perfect Shadow Groudon CP:

Normal Weather: 2351 CP (100% IV)
Sunny Weather: 2939 CP (100% IV, Weather Boosted)

Shiny Shadow Groudon Availability

For the first time in Pokémon GO, you’ll be able to encounter Shiny Shadow Groudon—if you’re lucky. Shiny Shadow Groudon debuts during the Shadow Groudon Raid Weekend event on September 20, 2025.

Shiny Odds Information:

Shiny Rate: Approximately 1 in 20 (standard legendary rate)
Guaranteed Catch: Shiny encounters are 100% catch rate
Recommendation: Use Pinap Berry on shiny encounters for extra candy

Raid Strategy & Team Building

Pre-Raid Preparation:

Coordinate with 4-6+ trainers for optimal success
Discuss Mega Evolution rotation among team members
Ensure all participants have strong Water/Grass/Ice counters
Stock up on revives and healing items

During the Raid:

Focus fire with super effective attacks
Utilize weather boost during sunny conditions
Save charged attacks for maximum damage windows
Re-enter quickly with backup teams if needed

For comprehensive Pokémon GO raid strategies and team building tips, explore our detailed coverage.

Shadow Groudon’s Value

Shadow Groudon offers significant advantages:

20% Attack Boost: Shadow bonus increases damage output
Meta Relevance: Strong in Master League and raids
Primal Evolution Potential: Can become Primal Groudon
Collection Value: Rare shadow legendary status

Stay updated with our Pokémon GO event coverage for more legendary raid opportunities.

Post-Raid Considerations

After successfully catching Shadow Groudon:

Purification: Consider keeping it shadow for the attack bonus
Investment Priority: Focus on powering up high IV specimens
Move Optimization: Teach Precipice Blades via Elite TM
Future Planning: Save candy for potential Primal Evolution

For official updates and announcements, visit the Pokémon GO website for the latest raid schedules and event details.

Final Tips for Success

Shadow raids require more coordination than regular raids, so communicate with your raid group and plan your approach carefully. The combination of Shadow Groudon’s increased difficulty and the potential for shiny encounters makes this weekend event particularly exciting for dedicated trainers.

Remember that Shadow Groudon’s debut represents a significant milestone in Pokémon GO, offering both challenge and reward for prepared trainers.

For the latest Pokémon GO raid guides and event updates, visit TechnoSports.

Frequently Asked Questions

Q: What is the perfect 100% IV CP for Shadow Groudon in Pokémon GO?

A: The perfect 100% IV Shadow Groudon has a CP of 2351 in normal weather conditions and 2939 CP when weather boosted (Sunny). During the Shadow Groudon Raid Weekend, the IV floor is set at 7/7/7, meaning you’re guaranteed relatively good stats from any encounter.

Q: Can Shadow Groudon be shiny and what are the odds?

A: Yes! For the first time ever, Shiny Shadow Groudon is available during the September 20-21, 2025 Shadow Raid Weekend event. The shiny rate follows the standard legendary odds of approximately 1 in 20. If you encounter a shiny, it’s a guaranteed catch, so be sure to use a Pinap Berry for extra candy.