Pokémon-specific weakness guide
Grimer Weaknesses and Counters
This guide explains Grimer's defensive profile, including every weakness, resistance, immunity, and practical counter type based on its Poison typing.

Grimer
#0088
Resistances (5)
Immunities (0)
Battle notes
- Grimer's Poison typing is best attacked with Ground (2x), Psychic (2x). Start with those attacking types when choosing moves or counter Pokémon.
- Avoid relying on common Grass, Fighting, Poison attacks unless they have unusually high power or a secondary purpose, because Grimer 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
Grimer's base defensive typing is Poison. 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 Grimer weak to?
Grimer is weak to Ground (2x), Psychic (2x).
Which attacking types are most practical against Grimer?
Ground and Psychic are tied as the strongest attacking types against Grimer, each dealing 2x damage.
Does Grimer'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.