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Counter guide · Rock / Psychic · Gen IX

What beats Iron Boulder?

The 5 hardest counters to Iron Boulder ranked by type effectiveness, base-stat total, and Speed.

Iron Boulder
No. 1022
Iron Boulder
Rock Psychic
BST 590 · Speed 124 · Atk 120 · SpA 68

Top 5 counters

  1. #1
    Dialga
    No. 483
    Dialga
    Steel Dragon
    Hits Iron Boulder for 2× via steel-type STAB Takes ½× back from rock-type STAB Speed: 90 ≤ 124 (slower) Lean: Special (SpA 150)
  2. #2
    Solgaleo
    No. 791
    Solgaleo
    Psychic Steel
    Hits Iron Boulder for 2× via steel-type STAB Takes ½× back from rock-type STAB Speed: 97 ≤ 124 (slower) Lean: Physical (Atk 137)
  3. #3
    Kartana
    No. 798
    Kartana
    Grass Steel
    Hits Iron Boulder for 2× via grass-type STAB Takes ½× back from rock-type STAB Speed: 109 ≤ 124 (slower) Lean: Physical (Atk 181)
  4. #4
    Melmetal
    No. 809
    Melmetal
    Steel
    Hits Iron Boulder for 2× via steel-type STAB Takes ½× back from rock-type STAB Speed: 34 ≤ 124 (slower) Lean: Physical (Atk 143)
  5. #5
    Metagross
    No. 376
    Metagross
    Steel Psychic
    Hits Iron Boulder for 2× via steel-type STAB Takes ½× back from rock-type STAB Speed: 70 ≤ 124 (slower) Lean: Physical (Atk 135)

Iron Boulder's type weaknesses

2× weak to
Water Grass Ground Bug Ghost Dark Steel

How this list is computed

Each candidate is scored on best-STAB damage into Iron Boulder, the damage taken back, Speed comparison, base-stat total, and offensive lean (Attack vs Sp. Attack). Candidates that Iron Boulder 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.