Pokémon-specific weakness guide
Iron Boulder Weaknesses and Counters
This guide explains Iron Boulder's defensive profile, including every weakness, resistance, immunity, and practical counter type based on its Rock / Psychic typing.

Iron Boulder
#1022
Resistances (5)
Immunities (0)
Battle notes
- Iron Boulder's Rock / Psychic typing is best attacked with Water (2x), Grass (2x), Ground (2x). Start with those attacking types when choosing moves or counter Pokémon.
- Avoid relying on common Normal, Fire, Poison attacks unless they have unusually high power or a secondary purpose, because Iron Boulder 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 counters
Defensive typing summary
Iron Boulder's base defensive typing is Rock / Psychic. 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 Iron Boulder weak to?
Iron Boulder is weak to Water (2x), Grass (2x), Ground (2x), Bug (2x), Ghost (2x), Dark (2x), Steel (2x).
Which attacking types are most practical against Iron Boulder?
Water is the strongest listed attacking type against Iron Boulder at 2x damage. Use the example counter Pokémon section for practical users of that type.
Does Iron Boulder'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.