Is Serperior viable in Gen 6 OU?

Serperior is ranked #2 in Gen 6 OU with 23.35% usage according to Smogon May 2026 - Jul 2026 data.

What beats Serperior in Gen 6 OU?

Talonflame has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 83.0% of 56.750684251494185 relevant encounters. Standard error is 7.0 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 · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0497 Serperior

Grass

USAGE 23.3% #2

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 99.7% Glare 90.6% Hidden Power Ground 36.5% Dragon Pulse 34.3% Taunt 26.2% Synthesis 24.0% Hidden Power Rock 22.4% Hidden Power Fire 20.4%

Items

Miracle Seed 32.8% Rocky Helmet 20.1% Leftovers 12.4% Lum Berry 9.9% Light Clay 8.7% Chesto Berry 7.1% Yache Berry 6.4% Coba Berry 0.9%

Abilities

Contrary99.9%Overgrow0.1%

Common Teammates

Excadrill54.0%

Bisharp35.1%

Tyranitar32.5%

Charizard-Mega-X25.9%

Zapdos24.8%

Volcanion24.3%

Landorus-Therian22.8%

Ferrothorn21.5%

Browse Gen 6 OU teams using Serperior →

Explore Serperior + Talonflame teams 55 score Explore Serperior + Heatran teams 49 score Explore Serperior + Weavile teams 49 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 54.0% 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

Talonflame

FireFlying OFFENSIVE CHECK View matchup

56.751

54.8

83.0% Standard error 7.05 points

DAMAGE CALC

252+ Atk Choice Band Gale Wings Talonflame Brave Bird vs. 252 HP / 0 Def Serperior: 492-578 (138.9 - 163.2%) -- guaranteed 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 →

Heatran

FireSteel OFFENSIVE CHECK View matchup

101.371

48.8

77.0% Standard error 7.05 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 →

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

53.822

38.4

72.7% Standard error 8.56 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 →

Amoonguss

GrassPoison DEFENSIVE CHECK View matchup

26.295

33.4

69.3% Standard error 8.99 points

DAMAGE CALC

252+ SpA Serperior Hidden Power Fire vs. 252 HP / 252+ SpD Amoonguss: 84-100 (19.4 - 23.1%) -- possible 6HKO

View Amoonguss counters →

Tornadus-Therian

Flying SOFT CHECK View matchup

109.591

24.5

51.4% Standard error 6.72 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 →

Ferrothorn

GrassSteel DEFENSIVE CHECK View matchup

26.72

20.6

58.7% Standard error 9.53 points

DAMAGE CALC

252+ SpA Serperior Hidden Power Fire vs. 252 HP / 252+ SpD Ferrothorn: 132-156 (37.5 - 44.3%) -- guaranteed 3HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

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

71.291

8.6

49.6% Standard error 10.25 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 →

Thundurus

ElectricFlying SOFT CHECK View matchup

46.731

6.8

45.0% Standard error 9.55 points

DAMAGE CALC

0- Atk Thundurus U-turn vs. 252 HP / 0 Def Serperior: 108-128 (30.5 - 36.1%) -- 47.7% chance to 3HKO

View Thundurus counters → Teams with Thundurus →

Excadrill

GroundSteel SOFT CHECK View matchup

117.739

0.5

28.0% Standard error 6.87 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

87.658

-1.5

33.0% Standard error 8.64 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 →

Rotom-Wash

ElectricWater SOFT CHECK View matchup

62.562

-6.7

2.0% Standard error 2.19 points

DAMAGE CALC

252+ SpA Rotom-Wash Hidden Power Fire vs. 252 HP / 252+ SpD Serperior: 92-110 (25.9 - 31%) -- guaranteed 4HKO

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

Keldeo

WaterFighting SOFT CHECK View matchup

91.148

-7.4

11.2% Standard error 4.65 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 →

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 →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

23.041

-12.6

4.3% Standard error 4.24 points

DAMAGE CALC

252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Serperior: 338-398 (95.4 - 112.4%) -- 75% chance to OHKO

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

Manaphy

Water SOFT CHECK View matchup

68.853

-13.2

20.0% Standard error 8.29 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 #2 with 23.35% usage. Sorted by conservative score.