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Counter guide · Water / Psychic · Gen I

What beats Slowbro?

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

Slowbro
No. 080
Slowbro
Water Psychic
BST 490 · Speed 30 · Atk 75 · SpA 100

Top 5 counters

  1. #1
    Kartana
    No. 798
    Kartana
    Grass Steel
    Hits Slowbro for 2× via grass-type STAB Takes ½× back from water-type STAB Speed: 109 > 30 (outspeeds) Lean: Physical (Atk 181)
  2. #2
    Roaring Moon
    No. 1005
    Roaring Moon
    Dragon Dark
    Hits Slowbro for 2× via dark-type STAB Takes ½× back from water-type STAB Speed: 119 > 30 (outspeeds) Lean: Physical (Atk 139)
  3. #3
    Hydreigon
    No. 635
    Hydreigon
    Dark Dragon
    Hits Slowbro for 2× via dark-type STAB Takes ½× back from water-type STAB Speed: 98 > 30 (outspeeds) Lean: Special (SpA 125)
  4. #4
    Iron Leaves
    No. 1010
    Iron Leaves
    Grass Psychic
    Hits Slowbro for 2× via grass-type STAB Takes ½× back from water-type STAB Speed: 104 > 30 (outspeeds) Lean: Physical (Atk 130)
  5. #5
    Zarude
    No. 893
    Zarude
    Dark Grass
    Hits Slowbro for 2× via dark-type STAB Takes ½× back from water-type STAB Speed: 105 > 30 (outspeeds) Lean: Physical (Atk 120)

Slowbro's type weaknesses

2× weak to
Grass Electric Bug Ghost Dark

How this list is computed

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