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Counter guide · Poison · Gen I

What beats Grimer?

The 5 hardest counters to Grimer ranked by type effectiveness, base-stat total, and Speed. Solgaleo outspeeds and hits for 2× with psychic-type STAB.

Grimer
No. 088
Grimer
Poison
BST 325 · Speed 25 · Atk 80 · SpA 40

Top 5 counters

  1. #1
    Solgaleo
    No. 791
    Solgaleo
    Psychic Steel
    Hits Grimer for 2× via psychic-type STAB Takes 0× back from poison-type STAB Speed: 97 > 25 (outspeeds) Lean: Physical (Atk 137)
  2. #2
    Metagross
    No. 376
    Metagross
    Steel Psychic
    Hits Grimer for 2× via psychic-type STAB Takes 0× back from poison-type STAB Speed: 70 > 25 (outspeeds) Lean: Physical (Atk 135)
  3. #3
    Iron Crown
    No. 1023
    Iron Crown
    Steel Psychic
    Hits Grimer for 2× via psychic-type STAB Takes 0× back from poison-type STAB Speed: 98 > 25 (outspeeds) Lean: Special (SpA 122)
  4. #4
    Jirachi
    No. 385
    Jirachi
    Steel Psychic
    Hits Grimer for 2× via psychic-type STAB Takes 0× back from poison-type STAB Speed: 100 > 25 (outspeeds) Lean: Physical (Atk 100)
  5. #5
    Iron Treads
    No. 990
    Iron Treads
    Ground Steel
    Hits Grimer for 2× via ground-type STAB Takes 0× back from poison-type STAB Speed: 106 > 25 (outspeeds) Lean: Physical (Atk 112)

Grimer's type weaknesses

2× weak to
Ground Psychic

How this list is computed

Each candidate is scored on best-STAB damage into Grimer, the damage taken back, Speed comparison, base-stat total, and offensive lean (Attack vs Sp. Attack). Candidates that Grimer hits super-effectively for 2× or more without taking comparable damage back are filtered out — they die first. Type-immune candidates are excluded entirely.

Counters are theoretical type-chart matchups, not damage calculations. Item, ability, and move-set choices can swing real battles. Use this list as a starting point, not a final answer.