Is Serperior viable in Gen 6 OU?

Serperior is ranked #7 in Gen 6 OU with 18.22% usage according to Smogon Jul 2026 - Sep 2026 data.

What beats Serperior in Gen 6 OU?

Heatran has the strongest conservative score in this observed Jul 2026 - Sep 2026 sample. The target was knocked out or switched out in 82.0% of 69.23346509707478 relevant encounters. Standard error is 4.6 points. Sets and switch conditions can change the result.

How are Serperior matchup checks ranked in Gen 6 OU?

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

Serperior counters

Gen 6 OU · Smogon source period Jul 2026 - Sep 2026

#0497 Serperior

Grass

USAGE 18.2% #7

ABILITYContrary

BASE STATS

HP 75

ATK 75

DEF 95

SPA 75

SPD 95

SPE 113

BST528

TYPE MATCHUPS

2×

FireIcePoisonFlyingBug

½×

WaterElectricGrassGround

Moves

Leaf Storm 99.8% Glare 89.1% Synthesis 37.6% Taunt 30.0% Hidden Power Rock 29.5% Hidden Power Fire 22.3% Hidden Power Ground 20.5% Dragon Pulse 18.6%

Items

Rocky Helmet 24.0% Miracle Seed 17.3% Leftovers 16.4% Lum Berry 15.4% Light Clay 8.3% Chesto Berry 7.6% Yache Berry 7.1% Coba Berry 1.3%

Abilities

Contrary100.0%Overgrow0.0%

Common Teammates

Landorus-Therian20.0%

Metagross-Mega18.1%

Browse Gen 6 OU teams using Serperior →

Explore Serperior + Heatran teams 64 score Explore Serperior + Talonflame teams 54 score Explore Serperior + Weavile teams 49 score Explore Serperior + Tornadus-Therian teams 25 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

Serperior + Excadrill 50.3% 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

Heatran

FireSteel OFFENSIVE CHECK View matchup

69.233

63.6

82.0% Standard error 4.61 points

DAMAGE CALC

252+ SpA Heatran Magma Storm vs. 252 HP / 252+ SpD Serperior: 270-318 (76.2 - 89.8%) -- 12.5% chance to OHKO after trapping damage

View Heatran counters → Teams with Heatran →

Talonflame

FireFlying OFFENSIVE CHECK View matchup

27.577

54.0

82.8% Standard error 7.19 points

DAMAGE CALC

252+ Atk Gale Wings Talonflame Brave Bird vs. 252 HP / 0 Def Serperior: 330-390 (93.2 - 110.1%) -- 62.5% chance to OHKO

View Talonflame counters → Teams with Talonflame →

Venusaur-Mega

GrassPoison DEFENSIVE CHECK View matchup

22.25

53.7

84.4% Standard error 7.68 points

DAMAGE CALC

252+ SpA Serperior Dragon Pulse vs. 252 HP / 252+ SpD Venusaur-Mega: 45-54 (12.3 - 14.8%) -- possible 7HKO

View Venusaur-Mega counters →

Weavile

DarkIce OFFENSIVE CHECK View matchup

33.668

48.7

77.5% Standard error 7.20 points

DAMAGE CALC

252+ Atk Choice Band Weavile Icicle Crash vs. 252 HP / 0 Def Serperior: 452-534 (127.6 - 150.8%) -- guaranteed OHKO

View Weavile counters → Teams with Weavile →

Lopunny-Mega

NormalFighting OFFENSIVE CHECK View matchup

25.014

31.3

68.4% Standard error 9.29 points

DAMAGE CALC

252+ Atk Lopunny-Mega High Jump Kick vs. 252 HP / 0 Def Serperior: 253-298 (71.4 - 84.1%) -- guaranteed 2HKO

View Lopunny-Mega counters →

Tornadus-Therian

Flying SOFT CHECK View matchup

93.726

25.3

45.9% Standard error 5.15 points

DAMAGE CALC

0- SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Serperior: 174-206 (49.1 - 58.1%) -- 98.4% chance to 2HKO

View Tornadus-Therian counters → Teams with Tornadus-Therian →

Volcanion

FireWater SOFT CHECK View matchup

26.091

13.5

52.6% Standard error 9.78 points

DAMAGE CALC

252+ SpA Volcanion Flamethrower vs. 252 HP / 252+ SpD Serperior: 240-284 (67.7 - 80.2%) -- guaranteed 2HKO

View Volcanion counters → Teams with Volcanion →

Serperior

Grass SOFT CHECK View matchup

22.196

6.4

48.8% Standard error 10.61 points

DAMAGE CALC

252+ SpA Serperior Hidden Power Fire vs. 252 HP / 252+ SpD Serperior: 76-90 (21.4 - 25.4%) -- 0.2% chance to 4HKO

View Serperior counters → Teams with Serperior →

Excadrill

GroundSteel SOFT CHECK View matchup

83.801

3.3

21.1% Standard error 4.46 points

DAMAGE CALC

252+ Atk Mold Breaker Excadrill Iron Head vs. 252 HP / 0 Def Serperior: 154-183 (43.5 - 51.6%) -- 9.4% chance to 2HKO

View Excadrill counters → Teams with Excadrill →

Clefable

Fairy SOFT CHECK View matchup

36.58

1.0

31.8% Standard error 7.70 points

DAMAGE CALC

252+ SpA Clefable Flamethrower vs. 252 HP / 252+ SpD Serperior: 130-154 (36.7 - 43.5%) -- guaranteed 3HKO

View Clefable counters → Teams with Clefable →

Keldeo

WaterFighting SOFT CHECK View matchup

81.369

-1.2

14.4% Standard error 3.89 points

DAMAGE CALC

252+ SpA Choice Specs Keldeo Focus Blast vs. 252 HP / 252+ SpD Serperior: 238-282 (67.2 - 79.6%) -- guaranteed 2HKO

View Keldeo counters → Teams with Keldeo →

Rotom-Wash

ElectricWater SOFT CHECK View matchup

32.858

-9.4

3.6% Standard error 3.24 points

DAMAGE CALC

252+ SpA Rotom-Wash Hydro Pump vs. 252 HP / 252+ SpD Serperior: 63-75 (17.7 - 21.1%) -- possible 5HKO

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

Garchomp

DragonGround SOFT CHECK View matchup

28.549

-12.0

6.6% Standard error 4.65 points

DAMAGE CALC

252+ Atk Garchomp Outrage vs. 252 HP / 0 Def Serperior: 225-265 (63.5 - 74.8%) -- guaranteed 2HKO

View Garchomp counters → Teams with Garchomp →

Manaphy

Water SOFT CHECK View matchup

21.46

-15.5

16.6% Standard error 8.04 points

DAMAGE CALC

252+ SpA Manaphy Ice Beam vs. 252 HP / 252+ SpD Serperior: 136-160 (38.4 - 45.1%) -- guaranteed 3HKO

View Manaphy counters → Teams with Manaphy →

Ranked #7 with 18.22% usage. Sorted by conservative score.