Build your team to defeat Mega Aggron in Pokémon GO. Compare the strongest raid counters and their recommended attacks, explore weather boosts, and check catch CP before your next raid.
Mega Raid (9000 HP)↓
Extreme↓| 1. |  Mega Lucario |  Force Palm | Aura Sphere | 24.08 | 25.56 | 912.6 | 9 | 373s | |
| 2. |  Mega Mewtwo X | Counter | Dynamic Punch+ | 23.74 | 25.14 | 928.1 | 9 | 379s | |
| 3. |  Mega Blaziken |  Fire Spin | Aura Sphere | 22.47 | 25.01 | 545.2 | 16 | 398s | |
| 4. |  Keldeo (Resolute Forme) | Low Kick | Secret Sword | 21.08 | 22.59 | 739.0 | 12 | 433s | |
| 5. |  Primal Groudon |  Mud Shot | Precipice Blades | 21.02 | 22.09 | 972.4 | 9 | 428s | |
| 6. |  Mega Gallade | Low Kick | Sacred Sword | 20.75 | 22.30 | 661.2 | 13 | 439s | |
| 7. |  Mega Delphox | Fire Spin | Blast Burn | 20.64 | 22.88 | 515.9 | 17 | 431s | |
| 8. |  Shadow Groudon | Mud Shot | Precipice Blades | 19.80 | 21.13 | 704.0 | 12 | 461s | |
| 9. |  Mega Mewtwo Y | Counter | Focus Blast | 19.60 | 21.08 | 629.5 | 14 | 463s | |
| 10. |  Shadow Reshiram | Fire Fang | Fusion Flare | 19.44 | 21.94 | 436.0 | 20 | 455s |
After Mega Aggron is defeated in a Raid, it will revert to its regular form, Aggron, which can be caught with the following Combat Power:
Plan for roughly 2–3 Trainers with teams comparable to the leading counters.
This is a planning estimate, not a guaranteed minimum. Weaker teams, dodging, the boss’s moves and connection delays can require more Trainers.
Mega Aggron takes increased damage from:
Fighting160.0%
Fire160.0%
Ground160.0%
Mega Aggron takes reduced damage from:
Poison39.1%
Bug62.5%
Dragon62.5%
Fairy62.5%
Flying62.5%
Grass62.5%
Ice62.5%
Normal62.5%
Psychic62.5%
Rock62.5%
Steel62.5%These weather conditions boost attacks that exploit the boss’s weaknesses. Use the weather setting above to compare your counters.
CloudyFighting
SunnyFireGroundCounters are ranked by eDPS (effective damage per second), accounting for damage, survival and time spent rejoining. Scores average the boss’s modeled attacks. DPS measures damage per second; TDO estimates damage before fainting. The model uses six copies of an attacker to compare performance, which is not a legal team for Mega or Primal Pokémon.
Time to Win (TTW) and faint counts are estimates based on your selected settings, including friendship. Other factors, such as damage boosts from another Trainer’s Mega-Evolved Pokémon and connection delays, can change real battle results.
Tiers group attackers by similar scores, emphasizing differences near the top. We use eight groups, labelled SS, S, A, B, C, D, E and F, when there are enough distinct scores; otherwise, fewer tiers are used. Group sizes are determined by the scores, not fixed rank cutoffs. Tiers update with the simulation settings and stay the same when you sort or change pages.
Tiers compare the up to 50 counters returned for the selected settings. Search filters that selection, not the entire Pokédex. No minimum CP filter is applied.
Defaults use Level 50 attackers, perfect IVs, no friendship or weather boost, no Party Power and 10 seconds to rejoin. Mega Level defaults to 4. Released Shadow, Mega and Primal Pokémon and legacy moves are included where eligible. Change the settings to reflect your team; the group estimate updates with the results.
Yes. Weather boosts attacks of matching types for both your Pokémon and the raid boss. The boss’s attack types determine which attacks receive the boost. A weather condition that helps your counters can also make the boss hit harder, so compare the rankings with the actual weather selected.
The estimate combines the modeled Trainer requirements of the top 12 regular or Shadow counters and the top two Mega or Primal counters, weighted 75% and 25%. It is a rough comparison, not a simulation of your group.
This is a planning estimate, not a guaranteed minimum. Weaker teams, dodging, the boss’s moves and connection delays can require more Trainers.
An asterisk marks a legacy move, which may require an event, an Elite TM or another special method. Some legacy moves cannot be taught with an Elite TM.
These counters are calculated for Mega Aggron, using the boss’s stats and typing alongside each attacker’s stats and moves. The raid level and battle settings are shown so you can check the assumptions and compare alternatives. Scores estimate performance under those conditions; your Pokémon’s IVs, dodging and the boss’s attacks can affect the result of a real raid.
