Pokémon-specific weakness guide
Mega Aggron Weaknesses and Counters
This guide explains Mega Aggron's defensive profile, including every weakness, resistance, immunity, and practical counter type based on its Steel typing.
Mega Aggron
#0306
Resistances (10)
Immunities (1)
Battle notes
- Mega Aggron's Steel typing is best attacked with Fire (2x), Fighting (2x), Ground (2x). Start with those attacking types when choosing moves or counter Pokémon.
- Avoid relying on common Poison, Normal, Grass, Ice attacks unless they have unusually high power or a secondary purpose, because Mega Aggron resists or ignores those matchups.
- This guide uses the modern Gen 6+ type chart only. Abilities, held items, Terastallization, weather, fields, and special move rules can still change real battle outcomes.
Best counter types
These attacking types hit the defender for super-effective damage under the modern Gen 6+ type chart.
Example Pokémon with Effective Types
These are examples of Pokémon associated with super-effective attacking types, not a ranked competitive counter list.
Defensive typing summary
Mega Aggron's base defensive typing is Steel. The weakness chart multiplies both types when a Pokémon has two types, so a matchup can become 4x, 2x, 1x, 0.5x, 0.25x, or 0x.
Related guides
FAQ
What is Mega Aggron weak to?
Mega Aggron is weak to Fire (2x), Fighting (2x), Ground (2x).
Which attacking types are most practical against Mega Aggron?
Fire, Fighting, and Ground are tied as the strongest attacking types against Mega Aggron, each dealing 2x damage.
Does Mega Aggron's ability change these weaknesses?
This page uses base defensive typing only. Abilities, held items, Terastallization, weather, fields, and special move rules can change actual battle outcomes.