Pokemon GO Mega Aggron raid guide: Best counters, shiny odds, 100% CP, and more

This Pokemon GO Mega Aggron raid guide will help you fight against the Steel-type beast in 5-star Mega Raids. This Mega Evolution was released during the Test Your Mettle event of September 2022. Since then, it has appeared as a raid boss several times, with the next appearance starting on June 30, 2025, and ending on July 8, 2025.

In this raid guide, we will tell you about the best counters you can use against this Mega Pokemon. We will also go through the boss’ best moveset and weaknesses to get you more prepared for the fight.

Best counters for Pokemon GO Mega Aggron raids

Check out the current Pokemon GO raid bosses that you can encounter in-game

Best Fire-type counters to Mega Aggron

Pokemon	Fast Move	Charged Move
Mega Charizard Y	Fire Spin	Blast Burn
Mega Blaziken	Fire Spin	Blast Burn
Shadow Chandelure	Fire Spin	Overheat
Shadow Heatran	Fire Spin	Magma Storm
Reshiram	Fire Fang	Fusion Flare

Best Fighting-type counters to Mega Aggron

Pokemon	Fast Move	Charged Move
Mega Lucario	Force Palm	Aura Sphere
Mega Heracross	Counter	Close Combat
Shadow Conkeldurr	Counter	Dynamic Punch
Terrakion	Double Kick	Sacred Sword
Keldeo	Low Kick	Sacred Sword

Best Ground-type counters to Mega Aggron

Pokemon	Fast Move	Charged Move
Primal/Shadow Groudon	Mud Shot	Precipice Blades
Mega/Shadow Garchomp	Mud Shot	Earth Power
Shadow Excadrill	Mud-Slap	Scorching Sands
Landorus Therian	Mud Shot	Sandsear Storm

Also read: All featured attacks during Pokemon GO Eevee Community Day Classic July 2025, ranked by their PvP viability

Can you solo defeat Pokemon GO Mega Aggron?

No, you cannot solo Pokemon GO Mega Aggron. You need at least two high-level trainers with maxed-out best counters to take down Mega Aggron raids in Pokemon GO. Check out why you can't solo defeat Mega Aggron in Pokemon GO.

If you are not equipped to with the top counters, you should have at least 5 - 10 trainers, depending on the potency of your teams. More than 10 raiders should be able to comfortably take down Mega Aggron — as long as the group does not consist only of absolute beginners.

Also read: When is Honedge, Doublade, and Aegislash coming to Pokemon GO?

What are Pokemon GO Mega Aggron's weaknesses?

Being a pure Steel-type Pokemon, Mega Aggron takes super effective damage from the following elemental typings:

Fire (160% increased damage)
Fighting (160% increased damage)
Ground (160% increased damage)

This creature is strong against the following elemental typings:

Rock (62.5%)
Fairy (62.5%)
Ice (62.5%)
Steel (62.5%)
Flying (62.5%)
Psychic (62.5%)
Normal (62.5%)
Dragon (62.5%)
Bug (62.5%)
Grass (62.5%)
Poison (62.5%)

Avoid using creatures that belong to these elemental typings, as this raid boss will take reduced damage from them. There are a lot of strong Fire-, Fighting-, and Ground-type Pokemon you can use instead.

Also read: When is Hisuian Zorua and Hisuian Zoroark coming to Pokemon GO?

Shiny odds from Pokemon GO Mega Aggron raids

Shiny Aggron and Shiny Mega Aggron (Image via TPC)

You may encounter a Shiny Aggron once you defeat Pokemon GO Mega Aggron raids. There is a 1-in-128 or 0.78125% chance of this happening.

Also read: 5 things to look forward to in Pokemon GO in July 2025

100% CP from Pokemon GO Mega Aggron in raids (hundo CP)

The CP range of the resultant Aggron spawn will vary based on its IVs and the weather. The potential options are as follows:

No weather boost: 1,636 - 1,714 CP at level 20 (10/10/10 - 15/15/15 IVs)
Weather boosted (Snowy): 2,045 - 2,145 CP at level 25 (10/10/10 - 15/15/15 IVs)

Also read: Is Pokemon GO Pass Deluxe July 2025 worth it?

Pokemon GO Mega Aggron's stat distribution and moveset

As a Mega Raid boss, Pokemon GO Mega Aggron has the following stats:

Combat Power: 46,233
Attack: 247
Defense: 331
Stamina: 9,000 HP
Fast Attacks: Dragon Tail, Iron Tail, Smack Down
Charged Attacks: Heavy Slam, Meteor Beam, Rock Tomb, Stone Edge, Thunder

Players get 300 seconds to take down Mega Aggron once the timer starts. Within this period, you must bring down the raid boss' HP bar to zero for a chance to capture the regular version of the creature and earn some Mega Energy.

Also read: Who won Pokemon GO August Community Day 2025 Poll?

Check out our other Pokemon GO guides:

About the author

Raunak joined Sportskeeda as a gaming journalist just about a year ago, and he already has 1K+ stories and over 4 million reads to his name. The Pokémon franchise is his chosen specialization, but he also covers Call of Duty, mobile games, MMOs, and esports tournaments.

Raunak completed his Bachelor's in Microbiology and Master's in Biotechnology but could not ultimately resist the beckoning of the video game industry. Having always had a knack for gaming, he had faith that he could write about them too. To ensure accuracy and relevancy, Raunak relies on his first-hand gameplay experiences and researches via reading articles and watching YouTube videos.

Project IGI was Raunak's gateway into video games, and he has been hooked ever since. He loves to play multiplayer titles with his friends but has been enjoying single-player indie horror games a lot lately. He would recommend horror and open-world adventure titles to gaming skeptics, as both these genres tap into the human desire to feel something in the presence of art.

In his spare time, Raunak engages in music production; he plays both guitar and piano.

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Edited by Rachel Syiemlieh