Is Gastrodon viable in Gen 7 OU?

Gastrodon is ranked #53 in Gen 7 OU with 2.97% usage according to Smogon May 2026 - Jul 2026 data.

What beats Gastrodon in Gen 7 OU?

Ferrothorn has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 87.6% of 28.711449067829225 relevant encounters. Standard error is 6.2 points. Sets and switch conditions can change the result.

How are Gastrodon matchup checks ranked in Gen 7 OU?

They are ranked by p minus four standard errors. Here, p is the observed fraction of relevant encounters where Gastrodon was knocked out or switched out. This is not a set-specific battle guarantee.

Gastrodon counters

Gen 7 OU · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0423 Gastrodon

WaterGround

USAGE 3.0% #53

ABILITYStorm Drain

BASE STATS

HP 111

ATK 83

DEF 68

SPA 92

SPD 82

SPE 39

BST475

TYPE MATCHUPS

4×

Grass

½×

FirePoisonRockSteel

0×

Electric

Moves

Recover 100.0% Scald 94.4% Earthquake 85.4% Clear Smog 68.2% Toxic 27.7% Earth Power 11.8% Counter 6.6% Protect 3.2%

Items

Leftovers 99.9% Rindo Berry 0.0% Choice Specs 0.0% Rocky Helmet 0.0% Aguav Berry 0.0% Eject Button 0.0% nothing 0.0% Sitrus Berry 0.0%

Abilities

Storm Drain100.0%Sticky Hold0.0%Sand Force0.0%

Common Teammates

Tornadus-Therian21.8%

Reuniclus15.2%

Latios-Mega12.5%

Leading observed checks

Open a matchup for a separate set-based damage estimate, or browse uploaded teams with both Pokémon.

Team core to explore

Gastrodon + Heatran 78.5% teammate usage Explore teams →

Checks & Counters

Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.

How to read this table

Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.

# Checker Encounters Conservative score Target KO or switch rate

Ferrothorn

GrassSteel DEFENSIVE CHECK View matchup

28.711

63.0

87.6% Standard error 6.15 points

DAMAGE CALC

252+ SpA Gastrodon Earth Power vs. 252 HP / 252+ SpD Ferrothorn: 84-99 (23.8 - 28.1%) -- possible 5HKO

View Ferrothorn counters → Teams with Ferrothorn →

Medicham-Mega

FightingPsychic OFFENSIVE CHECK View matchup

20.672

54.1

85.3% Standard error 7.79 points

DAMAGE CALC

252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 252 HP / 0 Def Gastrodon: 532-627 (124.8 - 147.1%) -- guaranteed OHKO

View Medicham-Mega counters →

Gliscor

GroundFlying DEFENSIVE CHECK View matchup

22.774

26.2

66.0% Standard error 9.93 points

DAMAGE CALC

252+ SpA Gastrodon Scald vs. 252 HP / 252+ SpD Gliscor: 198-234 (55.9 - 66.1%) -- guaranteed 2HKO

View Gliscor counters → Teams with Gliscor →

Tangrowth

Grass DEFENSIVE CHECK View matchup

29.225

21.4

57.9% Standard error 9.13 points

DAMAGE CALC

252+ SpA Gastrodon Clear Smog vs. 252 HP / 252+ SpD Assault Vest Tangrowth: 68-82 (16.8 - 20.2%) -- possible 5HKO

View Tangrowth counters →

Toxapex

PoisonWater SOFT CHECK View matchup

28.641

14.2

51.5% Standard error 9.34 points

DAMAGE CALC

0- Atk Toxapex Knock Off (97.5 BP) vs. 252 HP / 0 Def Gastrodon: 59-70 (13.8 - 16.4%) -- possible 7HKO

View Toxapex counters → Teams with Toxapex →

Tapu Fini

WaterFairy SOFT CHECK View matchup

29.516

6.1

42.5% Standard error 9.10 points

DAMAGE CALCMisty Terrain

Tapu Fini Nature's Madness vs. 252 HP Gastrodon: 213-213 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery

View Tapu Fini counters → Teams with Tapu Fini →

Magearna

SteelFairy SOFT CHECK View matchup

92.354

2.4

37.1% Standard error 8.67 points

DAMAGE CALC

252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Gastrodon: 190-225 (44.6 - 52.8%) -- guaranteed 3HKO after Leftovers recovery

View Magearna counters → Teams with Magearna →

Clefable

Fairy SOFT CHECK View matchup

24.776

-0.5

38.7% Standard error 9.78 points

DAMAGE CALC

252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Gastrodon: 112-133 (26.2 - 31.2%) -- 15.2% chance to 4HKO after Leftovers recovery

View Clefable counters → Teams with Clefable →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

48.017

-0.7

39.0% Standard error 9.93 points

DAMAGE CALC

252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Gastrodon: 444-523 (104.2 - 122.7%) -- guaranteed OHKO

View Landorus-Therian counters → Teams with Landorus-Therian →

Greninja

WaterDark SOFT CHECK View matchup

99.274

-1.6

30.0% Standard error 7.90 points

DAMAGE CALC

252+ SpA Choice Specs Greninja Dark Pulse vs. 252 HP / 252+ SpD Gastrodon: 150-177 (35.2 - 41.5%) -- 77.1% chance to 3HKO after Leftovers recovery

View Greninja counters → Teams with Greninja →

Rotom-Wash

ElectricWater SOFT CHECK View matchup

37.874

-8.4

14.3% Standard error 5.70 points

Heatran

FireSteel SOFT CHECK View matchup

53.205

-10.6

13.2% Standard error 5.95 points

DAMAGE CALC

252+ SpA Heatran Earth Power vs. 252 HP / 252+ SpD Gastrodon: 89-105 (20.8 - 24.6%) -- possible 6HKO

View Heatran counters → Teams with Heatran →

Tapu Koko

ElectricFairy SOFT CHECK View matchup

55.439

-11.3

10.0% Standard error 5.31 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Gastrodon: 213-213 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery

View Tapu Koko counters → Teams with Tapu Koko →

Ranked #53 with 2.97% usage. Sorted by conservative score.