Is Slowbro viable in Gen 9 National Dex?

Slowbro is ranked #50 in Gen 9 National Dex with 3.43% usage according to Smogon May 2026 - Jul 2026 data.

What beats Slowbro in Gen 9 National Dex?

Venusaur-Mega has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 95.8% of 30.140934618127275 relevant encounters. Standard error is 3.6 points. Sets and switch conditions can change the result.

How are Slowbro matchup checks ranked in Gen 9 National Dex?

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

Slowbro counters

Gen 9 National Dex · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0080 Slowbro

WaterPsychic

USAGE 3.4% #50

ABILITYRegenerator

BASE STATS

HP 95

ATK 75

DEF 110

SPA 100

SPD 80

SPE 30

BST490

TYPE MATCHUPS

2×

ElectricGrassBugGhostDark

½×

FireWaterIceFightingPsychicSteel

Moves

Teleport 99.1% Scald 85.9% Future Sight 80.9% Thunder Wave 45.3% Slack Off 26.8% Trick Room 14.2% Body Press 14.1% Ice Beam 13.5%

Items

Rocky Helmet 55.0% Heavy-Duty Boots 29.2% Colbur Berry 5.9% Psychium Z 5.8% nothing 2.2% Leftovers 0.6% Rindo Berry 0.5% Eject Button 0.2%

Abilities

Regenerator99.8%Oblivious0.2%Own Tempo0.0%

Common Teammates

Charizard-Mega-Y26.4%

Tornadus-Therian19.6%

Zamazenta17.9%

Landorus-Therian13.5%

Browse Gen 9 National Dex teams using Slowbro →

Explore Slowbro + Kingambit teams 70 score Explore Slowbro + Gholdengo teams 70 score Explore Slowbro + Kyurem teams 65 score Explore Slowbro + Ogerpon-Wellspring teams 53 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

Slowbro + Iron Treads 33.0% 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

Venusaur-Mega

GrassPoison DEFENSIVE CHECK View matchup

30.141

81.3

95.8% Standard error 3.64 points

DAMAGE CALC

252+ SpA Slowbro Future Sight vs. 252 HP / 252+ SpD Venusaur-Mega: 228-270 (62.6 - 74.1%) -- guaranteed 2HKO

View Venusaur-Mega counters →

Kingambit

DarkSteel DEFENSIVE CHECK View matchup

109.731

70.1

89.4% Standard error 4.82 points

DAMAGE CALC

0 Def Slowbro Body Press vs. 252 HP / 0 Def Kingambit: 216-256 (53.4 - 63.3%) -- guaranteed 2HKO

View Kingambit counters → Teams with Kingambit →

Gholdengo

SteelGhost OFFENSIVE CHECK View matchup

68.776

69.9

90.1% Standard error 5.04 points

DAMAGE CALC

252+ SpA Gholdengo Shadow Ball vs. 252 HP / 252+ SpD Slowbro: 242-288 (61.4 - 73%) -- guaranteed 2HKO

View Gholdengo counters → Teams with Gholdengo →

Kyurem

DragonIce OFFENSIVE CHECK View matchup

53.821

65.3

84.8% Standard error 4.89 points

DAMAGE CALC

252+ SpA Kyurem Freeze-Dry vs. 252 HP / 252+ SpD Slowbro: 210-248 (53.2 - 62.9%) -- guaranteed 2HKO

View Kyurem counters → Teams with Kyurem →

Charizard-Mega-Y

FireFlying OFFENSIVE CHECK View matchup

30.296

59.9

85.5% Standard error 6.40 points

DAMAGE CALCSun

252+ SpA Charizard-Mega-Y Solar Beam vs. 252 HP / 252+ SpD Slowbro: 278-328 (70.5 - 83.2%) -- guaranteed 2HKO

View Charizard-Mega-Y counters →

Ogerpon-Wellspring

GrassWater OFFENSIVE CHECK View matchup

116.323

52.5

78.2% Standard error 6.42 points

DAMAGE CALC

252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 0 Def Slowbro: 450-530 (114.2 - 134.5%) -- guaranteed OHKO

View Ogerpon-Wellspring counters → Teams with Ogerpon-Wellspring →

Melmetal

Steel DEFENSIVE CHECK View matchup

60.273

52.0

79.0% Standard error 6.74 points

DAMAGE CALC

252+ SpA Slowbro Scald vs. 252 HP / 252+ SpD Melmetal: 112-133 (23.6 - 28%) -- 90.4% chance to 4HKO

View Melmetal counters →

Raging Bolt

ElectricDragon OFFENSIVE CHECK View matchup

54.44

50.1

80.4% Standard error 7.59 points

DAMAGE CALC

252+ SpA Choice Specs Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Slowbro: 420-494 (106.5 - 125.3%) -- guaranteed OHKO

View Raging Bolt counters → Teams with Raging Bolt →

Charizard-Mega-X

FireDragon OFFENSIVE CHECK View matchup

45.011

43.6

78.3% Standard error 8.67 points

DAMAGE CALC

252+ Atk Tough Claws Charizard-Mega-X Outrage vs. 252 HP / 0 Def Slowbro: 258-304 (65.4 - 77.1%) -- guaranteed 2HKO

View Charizard-Mega-X counters →

Scizor-Mega

BugSteel OFFENSIVE CHECK View matchup

20.409

41.9

78.4% Standard error 9.11 points

DAMAGE CALC

252+ Atk Scizor-Mega U-turn vs. 252 HP / 0 Def Slowbro: 258-306 (65.4 - 77.6%) -- guaranteed 2HKO

View Scizor-Mega counters →

Hatterene

PsychicFairy OFFENSIVE CHECK View matchup

20.697

41.4

77.9% Standard error 9.12 points

DAMAGE CALC

252+ SpA Hatterene Draining Kiss vs. 252 HP / 252+ SpD Slowbro: 78-93 (19.7 - 23.6%) -- possible 5HKO

View Hatterene counters → Teams with Hatterene →

Terapagos

Normal DEFENSIVE CHECK View matchup

31.923

40.7

72.4% Standard error 7.92 points

DAMAGE CALC

252+ SpA Slowbro Future Sight vs. 252 HP / 252+ SpD Terapagos: 144-171 (37.5 - 44.5%) -- guaranteed 3HKO

View Terapagos counters → Teams with Terapagos →

Dragonite

DragonFlying OFFENSIVE CHECK View matchup

57.606

39.2

72.1% Standard error 8.23 points

DAMAGE CALC

252+ Atk Dragonite Outrage vs. 252 HP / 0 Def Slowbro: 204-240 (51.7 - 60.9%) -- guaranteed 2HKO

View Dragonite counters → Teams with Dragonite →

Tapu Lele

PsychicFairy OFFENSIVE CHECK View matchup

53.664

37.4

71.7% Standard error 8.58 points

DAMAGE CALCPsychic Terrain

252+ SpA Tapu Lele Moonblast vs. 252 HP / 252+ SpD Slowbro: 142-168 (36 - 42.6%) -- guaranteed 3HKO

View Tapu Lele counters → Teams with Tapu Lele →

Tornadus-Therian

Flying OFFENSIVE CHECK View matchup

38.155

28.9

60.6% Standard error 7.91 points

DAMAGE CALC

252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Slowbro: 145-172 (36.8 - 43.6%) -- guaranteed 3HKO

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

Iron Valiant

FairyFighting OFFENSIVE CHECK View matchup

55.763

25.9

62.1% Standard error 9.04 points

DAMAGE CALC

252+ Atk Iron Valiant Knock Off (97.5 BP) vs. 252 HP / 0 Def Slowbro: 214-254 (54.3 - 64.4%) -- guaranteed 2HKO

View Iron Valiant counters → Teams with Iron Valiant →

Zapdos

ElectricFlying OFFENSIVE CHECK View matchup

38.135

25.2

57.2% Standard error 8.01 points

DAMAGE CALC

252+ SpA Zapdos Thunderbolt vs. 252 HP / 252+ SpD Slowbro: 260-308 (65.9 - 78.1%) -- guaranteed 2HKO

View Zapdos counters → Teams with Zapdos →

Diancie-Mega

RockFairy OFFENSIVE CHECK View matchup

24.708

25.2

63.8% Standard error 9.67 points

DAMAGE CALC

252+ SpA Diancie-Mega Moonblast vs. 252 HP / 252+ SpD Slowbro: 166-196 (42.1 - 49.7%) -- guaranteed 3HKO

View Diancie-Mega counters → Teams with Diancie-Mega →

Gliscor

GroundFlying SOFT CHECK View matchup

246.449

24.8

46.0% Standard error 5.31 points

DAMAGE CALC

252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Slowbro: 172-204 (43.6 - 51.7%) -- 9% chance to 2HKO

View Gliscor counters → Teams with Gliscor →

Latios-Mega

DragonPsychic OFFENSIVE CHECK View matchup

31.586

22.3

57.5% Standard error 8.80 points

DAMAGE CALC

252+ SpA Latios-Mega Draco Meteor vs. 252 HP / 252+ SpD Slowbro: 226-267 (57.3 - 67.7%) -- guaranteed 2HKO

View Latios-Mega counters →

Garchomp

DragonGround OFFENSIVE CHECK View matchup

54.988

22.1

59.4% Standard error 9.35 points

DAMAGE CALC

252+ Atk Garchomp Outrage vs. 252 HP / 0 Def Slowbro: 199-235 (50.5 - 59.6%) -- guaranteed 2HKO

View Garchomp counters → Teams with Garchomp →

Chansey

Normal SOFT CHECK View matchup

45.674

21.8

51.4% Standard error 7.40 points

DAMAGE CALC

Chansey Seismic Toss vs. 252 HP Slowbro: 100-100 (25.3 - 25.3%) -- guaranteed 4HKO

View Chansey counters → Teams with Chansey →

Alomomola

Water SOFT CHECK View matchup

195.785

17.7

41.7% Standard error 6.00 points

DAMAGE CALC

252+ Atk Alomomola Knock Off (97.5 BP) vs. 252 HP / 0 Def Slowbro: 148-176 (37.5 - 44.6%) -- guaranteed 3HKO

View Alomomola counters → Teams with Alomomola →

Zamazenta

Fighting SOFT CHECK View matchup

180.325

17.0

42.2% Standard error 6.29 points

DAMAGE CALC

252+ Atk Zamazenta Crunch vs. 252 HP / 0 Def Slowbro: 168-198 (42.6 - 50.2%) -- 1.2% chance to 2HKO

View Zamazenta counters → Teams with Zamazenta →

Ferrothorn

GrassSteel DEFENSIVE CHECK View matchup

26.744

16.6

55.1% Standard error 9.62 points

DAMAGE CALC

0 Def Slowbro Body Press vs. 252 HP / 0 Def Ferrothorn: 100-118 (28.4 - 33.5%) -- 92.3% chance to 4HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

Blissey

Normal DEFENSIVE CHECK View matchup

20.671

15.6

58.9% Standard error 10.82 points

DAMAGE CALC

0 Def Slowbro Body Press vs. 252 HP / 0 Def Blissey: 524-618 (73.3 - 86.5%) -- guaranteed 2HKO

View Blissey counters → Teams with Blissey →

Toxapex

PoisonWater SOFT CHECK View matchup

122.773

8.6

30.4% Standard error 5.45 points

DAMAGE CALC

0- Atk Toxapex Knock Off (97.5 BP) vs. 252 HP / 0 Def Slowbro: 80-96 (20.3 - 24.3%) -- guaranteed 5HKO

View Toxapex counters → Teams with Toxapex →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

135.095

-0.0

25.0% Standard error 6.26 points

DAMAGE CALC

252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Slowbro: 299-352 (75.8 - 89.3%) -- guaranteed 2HKO

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

Corviknight

FlyingSteel SOFT CHECK View matchup

70.99

-1.1

26.6% Standard error 6.92 points

DAMAGE CALC

252+ Atk Corviknight Brave Bird vs. 252 HP / 0 Def Slowbro: 153-180 (38.8 - 45.6%) -- guaranteed 3HKO

View Corviknight counters → Teams with Corviknight →

Great Tusk

GroundFighting SOFT CHECK View matchup

153.662

-2.0

19.3% Standard error 5.32 points

DAMAGE CALC

252+ Atk Great Tusk Headlong Rush vs. 252 HP / 0 Def Slowbro: 201-237 (51 - 60.1%) -- guaranteed 2HKO

View Great Tusk counters → Teams with Great Tusk →

Ranked #50 with 3.43% usage. Sorted by conservative score.