Is Ferrothorn viable in Gen 5 OU?

Ferrothorn is ranked #2 in Gen 5 OU with 34.42% usage according to Smogon May 2026 - Jul 2026 data.

What beats Ferrothorn in Gen 5 OU?

Thundurus-Therian has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 85.0% of 72.77374411059674 relevant encounters. Standard error is 5.9 points. Sets and switch conditions can change the result.

How are Ferrothorn matchup checks ranked in Gen 5 OU?

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

Ferrothorn counters

Gen 5 OU · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0598 Ferrothorn

GrassSteel

USAGE 34.4% #2

BASE STATS

HP 74

ATK 94

DEF 131

SPA 54

SPD 116

SPE 20

BST489

TYPE MATCHUPS

4×

Fire

2×

Fighting

½×

NormalWaterElectricPsychicRockDragonSteelFairy

¼×

Grass

0×

Poison

Moves

Power Whip 97.8% Spikes 95.3% Stealth Rock 68.9% Gyro Ball 47.8% Knock Off 34.9% Leech Seed 25.0% Thunder Wave 19.8% Explosion 6.1%

Items

Leftovers 58.3% Lum Berry 18.6% Chople Berry 13.0% Rocky Helmet 4.3% Rawst Berry 3.3% Custap Berry 1.1% Shed Shell 0.9% Eject Button 0.3%

Common Teammates

Latios60.8%

Politoed60.6%

Keldeo52.3%

Thundurus-Therian51.3%

Landorus-Therian41.9%

Tentacruel36.2%

Tyranitar29.7%

Starmie27.4%

Browse Gen 5 OU teams using Ferrothorn →

Explore Ferrothorn + Thundurus-Therian teams 61 score Explore Ferrothorn + Dragonite teams 45 score Explore Ferrothorn + Alakazam teams 45 score Explore Ferrothorn + Reuniclus teams 43 score Explore Ferrothorn + Forretress teams 36 score Explore Ferrothorn + Keldeo teams 36 score

Leading observed checks

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

Team core to explore

Ferrothorn + Latios 60.8% 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

Thundurus-Therian

ElectricFlying OFFENSIVE CHECK View matchup

72.774

61.4

85.0% Standard error 5.91 points

DAMAGE CALC

252+ SpA Thundurus-Therian Focus Blast vs. 252 HP / 252+ SpD Ferrothorn: 204-240 (57.9 - 68.1%) -- guaranteed 2HKO after Leftovers recovery

View Thundurus-Therian counters → Teams with Thundurus-Therian →

Dragonite

DragonFlying OFFENSIVE CHECK View matchup

25.545

45.3

78.0% Standard error 8.19 points

DAMAGE CALC

252+ Atk Dragonite Fire Punch vs. 252 HP / 0 Def Ferrothorn: 292-348 (82.9 - 98.8%) -- guaranteed 2HKO after Leftovers recovery

View Dragonite counters → Teams with Dragonite →

Alakazam

Psychic OFFENSIVE CHECK View matchup

29.525

45.2

76.4% Standard error 7.81 points

DAMAGE CALC

252+ SpA Alakazam Hidden Power Fire vs. 252 HP / 252+ SpD Ferrothorn: 224-268 (63.6 - 76.1%) -- guaranteed 2HKO after Leftovers recovery

View Alakazam counters → Teams with Alakazam →

Reuniclus

Psychic OFFENSIVE CHECK View matchup

20.382

42.8

78.9% Standard error 9.03 points

DAMAGE CALC

252+ SpA Reuniclus Focus Blast vs. 252 HP / 252+ SpD Ferrothorn: 182-216 (51.7 - 61.3%) -- 95.7% chance to 2HKO after Leftovers recovery

View Reuniclus counters → Teams with Reuniclus →

Forretress

BugSteel DEFENSIVE CHECK View matchup

30.049

36.4

69.8% Standard error 8.37 points

DAMAGE CALC

252+ Atk Ferrothorn Explosion vs. 252 HP / 252+ Def Forretress: 68-80 (19.2 - 22.5%) -- possible 6HKO

View Forretress counters → Teams with Forretress →

Keldeo

WaterFighting OFFENSIVE CHECK View matchup

42.223

35.8

65.1% Standard error 7.33 points

DAMAGE CALC

252+ SpA Choice Specs Keldeo Secret Sword vs. 252 HP / 0 Def Ferrothorn: 360-426 (102.2 - 121%) -- guaranteed OHKO

View Keldeo counters → Teams with Keldeo →

Excadrill

GroundSteel OFFENSIVE CHECK View matchup

32.248

21.9

56.8% Standard error 8.72 points

DAMAGE CALC

252+ Atk Excadrill Earthquake vs. 252 HP / 0 Def Ferrothorn: 147-174 (41.7 - 49.4%) -- guaranteed 3HKO after Leftovers recovery

View Excadrill counters → Teams with Excadrill →

Skarmory

SteelFlying DEFENSIVE CHECK View matchup

23.076

21.9

62.2% Standard error 10.09 points

DAMAGE CALC

252+ Atk Ferrothorn Explosion vs. 252 HP / 252+ Def Skarmory: 68-80 (20.3 - 23.9%) -- guaranteed 5HKO

View Skarmory counters → Teams with Skarmory →

Garchomp

DragonGround OFFENSIVE CHECK View matchup

24.72

20.7

60.1% Standard error 9.85 points

DAMAGE CALC

0- SpA Garchomp Fire Blast vs. 252 HP / 252+ SpD Ferrothorn: 168-200 (47.7 - 56.8%) -- 33.2% chance to 2HKO after Leftovers recovery

View Garchomp counters → Teams with Garchomp →

Ferrothorn

GrassSteel SOFT CHECK View matchup

118.75

20.6

46.0% Standard error 6.34 points

DAMAGE CALC

252+ Atk Ferrothorn Explosion vs. 252 HP / 0 Def Ferrothorn: 94-111 (26.7 - 31.5%) -- 26.4% chance to 4HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

110.313

20.4

52.7% Standard error 8.06 points

DAMAGE CALC

252+ Atk Landorus-Therian Superpower vs. 252 HP / 0 Def Ferrothorn: 248-292 (70.4 - 82.9%) -- guaranteed 2HKO after Leftovers recovery

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

Scizor

BugSteel OFFENSIVE CHECK View matchup

25.171

16.6

56.1% Standard error 9.89 points

DAMAGE CALC

252+ Atk Choice Band Scizor Superpower vs. 252 HP / 0 Def Ferrothorn: 340-402 (96.5 - 114.2%) -- 81.3% chance to OHKO

View Scizor counters → Teams with Scizor →

Latios

DragonPsychic SOFT CHECK View matchup

190.592

12.5

35.3% Standard error 5.71 points

DAMAGE CALC

252+ SpA Latios Hidden Power Fire vs. 252 HP / 252+ SpD Ferrothorn: 220-260 (62.5 - 73.8%) -- guaranteed 2HKO after Leftovers recovery

View Latios counters → Teams with Latios →

Abomasnow

GrassIce SOFT CHECK View matchup

23.348

7.2

48.6% Standard error 10.34 points

DAMAGE CALCSnow

252+ SpA Abomasnow Hidden Power Fire vs. 252 HP / 252+ SpD Ferrothorn: 176-208 (50 - 59%) -- 67.2% chance to 2HKO after Leftovers recovery

View Abomasnow counters → Teams with Abomasnow →

Tyranitar

RockDark SOFT CHECK View matchup

53.228

3.1

41.1% Standard error 9.52 points

DAMAGE CALCSand

252+ Atk Tyranitar Superpower vs. 252 HP / 0 Def Ferrothorn: 234-276 (66.4 - 78.4%) -- guaranteed 2HKO after Leftovers recovery

View Tyranitar counters → Teams with Tyranitar →

Politoed

Water SOFT CHECK View matchup

40.109

1.1

30.0% Standard error 7.24 points

DAMAGE CALCRain

252+ SpA Politoed Hydro Pump vs. 252 HP / 252+ SpD Ferrothorn in Rain: 81-96 (23 - 27.2%) -- possible 5HKO

View Politoed counters → Teams with Politoed →

Jirachi

SteelPsychic SOFT CHECK View matchup

31.254

0.4

34.4% Standard error 8.49 points

DAMAGE CALC

252+ Atk Jirachi Ice Punch vs. 252 HP / 0 Def Ferrothorn: 60-71 (17 - 20.1%) -- possible 7HKO

View Jirachi counters → Teams with Jirachi →

Starmie

WaterPsychic SOFT CHECK View matchup

80.56

-0.8

23.8% Standard error 6.16 points

DAMAGE CALC

0- SpA Starmie Ice Beam vs. 252 HP / 252+ SpD Ferrothorn: 40-48 (11.3 - 13.6%)

View Starmie counters → Teams with Starmie →

Clefable

Fairy SOFT CHECK View matchup

20.179

-2.3

41.6% Standard error 10.97 points

DAMAGE CALC

Clefable Seismic Toss vs. 252 HP Ferrothorn: 100-100 (28.4 - 28.4%) -- guaranteed 5HKO after Leftovers recovery

View Clefable counters → Teams with Clefable →

Rotom-Wash

ElectricWater SOFT CHECK View matchup

23.58

-12.3

21.7% Standard error 8.48 points

DAMAGE CALC

252+ SpA Rotom-Wash Hidden Power Fire vs. 252 HP / 252+ SpD Ferrothorn: 188-224 (53.4 - 63.6%) -- guaranteed 2HKO after Leftovers recovery

View Rotom-Wash counters → Teams with Rotom-Wash →

Ranked #2 with 34.42% usage. Sorted by conservative score.