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Counter guide · Grass · Gen V

What beats Serperior?

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

Serperior
No. 497
Serperior
Grass
BST 528 · Speed 113 · Atk 75 · SpA 75

Top 5 counters

  1. #1
    Eternatus
    No. 890
    Eternatus
    Poison Dragon
    Hits Serperior for 2× via poison-type STAB Takes ¼× back from grass-type STAB Speed: 130 > 113 (outspeeds) Lean: Special (SpA 145)
  2. #2
    Naganadel
    No. 804
    Naganadel
    Poison Dragon
    Hits Serperior for 2× via poison-type STAB Takes ¼× back from grass-type STAB Speed: 121 > 113 (outspeeds) Lean: Special (SpA 127)
  3. #3
    Noivern
    No. 715
    Noivern
    Flying Dragon
    Hits Serperior for 2× via flying-type STAB Takes ¼× back from grass-type STAB Speed: 123 > 113 (outspeeds) Lean: Special (SpA 97)
  4. #4
    Crobat
    No. 169
    Crobat
    Poison Flying
    Hits Serperior for 2× via poison-type STAB Takes ¼× back from grass-type STAB Speed: 130 > 113 (outspeeds) Lean: Physical (Atk 90)
  5. #5
    Rayquaza
    No. 384
    Rayquaza
    Dragon Flying
    Hits Serperior for 2× via flying-type STAB Takes ¼× back from grass-type STAB Speed: 95 ≤ 113 (slower) Lean: Physical (Atk 150)

Serperior's type weaknesses

2× weak to
Fire Ice Poison Flying Bug

How this list is computed

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