Is Tapu Koko viable in Gen 9 National Dex?

Tapu Koko is ranked #30 in Gen 9 National Dex with 6.75% usage according to Smogon Jul 2026 - Sep 2026 data.

What beats Tapu Koko in Gen 9 National Dex?

Iron Treads has the strongest conservative score in this observed Jul 2026 - Sep 2026 sample. The target was knocked out or switched out in 85.2% of 68.21615272518511 relevant encounters. Standard error is 4.3 points. Sets and switch conditions can change the result.

How are Tapu Koko 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 Tapu Koko was knocked out or switched out. This is not a set-specific battle guarantee.

Tapu Koko counters

Gen 9 National Dex · Smogon source period Jul 2026 - Sep 2026

#0785 Tapu Koko

ElectricFairy

USAGE 6.8% #30

ABILITYElectric Surge

BASE STATS

HP 70

ATK 115

DEF 85

SPA 95

SPD 75

SPE 130

BST570

TYPE MATCHUPS

2×

PoisonGround

½×

ElectricFightingFlyingBugDark

0×

Dragon

Moves

U-turn 76.3% Thunderbolt 75.8% Dazzling Gleam 65.0% Hidden Power Ice 47.1% Volt Switch 40.5% Roost 24.5% Taunt 17.2% Reflect 10.3%

Items

Choice Specs 25.0% Terrain Extender 16.6% Heavy-Duty Boots 14.3% Electrium Z 12.2% Choice Scarf 11.4% Light Clay 10.3% Fairium Z 4.2% Choice Band 1.4%

Abilities

Electric Surge100.0%Telepathy0.0%

Common Teammates

Iron Treads31.7%

Iron Valiant31.3%

Alomomola30.0%

Landorus-Therian28.8%

Kingambit19.4%

Ogerpon-Wellspring11.8%

Dragonite11.6%

Terapagos11.3%

Leading observed checks

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

Team core to explore

Tapu Koko + Iron Treads 31.7% 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

Iron Treads

GroundSteel DEFENSIVE CHECK View matchup

68.216

68.0

85.2% Standard error 4.30 points

DAMAGE CALCElectric Terrain

0- SpA Choice Specs Tapu Koko Hidden Power Ice vs. 252 HP / 0 SpD Iron Treads: 75-89 (19.5 - 23.1%) -- possible 6HKO

View Iron Treads counters → Teams with Iron Treads →

Terapagos

Normal DEFENSIVE CHECK View matchup

46.563

56.3

79.8% Standard error 5.88 points

DAMAGE CALCElectric Terrain

0- SpA Choice Specs Tapu Koko Thunderbolt vs. 252 HP / 0 SpD Terapagos in Electric Terrain: 186-220 (48.4 - 57.2%) -- 93.4% chance to 2HKO

View Terapagos counters → Teams with Terapagos →

Ting-Lu

DarkGround DEFENSIVE CHECK View matchup

81.771

54.6

74.0% Standard error 4.85 points

DAMAGE CALCElectric Terrain

0- SpA Choice Specs Tapu Koko Dazzling Gleam vs. 252 HP / 0 SpD Vessel of Ruin Ting-Lu: 204-240 (39.6 - 46.6%) -- guaranteed 3HKO after Leftovers recovery

View Ting-Lu counters → Teams with Ting-Lu →

Dragonite

DragonFlying OFFENSIVE CHECK View matchup

50.953

45.8

71.1% Standard error 6.35 points

DAMAGE CALCElectric Terrain

252+ Atk Dragonite Earthquake vs. 252 HP / 0 Def Tapu Koko: 282-332 (81.9 - 96.5%) -- guaranteed 2HKO

View Dragonite counters → Teams with Dragonite →

Gholdengo

SteelGhost OFFENSIVE CHECK View matchup

115.745

44.2

62.2% Standard error 4.51 points

DAMAGE CALCElectric Terrain

252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Tapu Koko: 190-225 (55.2 - 65.4%) -- guaranteed 2HKO

View Gholdengo counters → Teams with Gholdengo →

Tapu Lele

PsychicFairy OFFENSIVE CHECK View matchup

92.548

42.9

63.0% Standard error 5.02 points

DAMAGE CALCPsychic Terrain

252+ SpA Tapu Lele Future Sight vs. 252 HP / 252+ SpD Tapu Koko in Psychic Terrain: 243-286 (70.6 - 83.1%) -- guaranteed 2HKO

View Tapu Lele counters → Teams with Tapu Lele →

Gliscor

GroundFlying DEFENSIVE CHECK View matchup

118.006

37.1

55.4% Standard error 4.58 points

DAMAGE CALCElectric Terrain

0- SpA Choice Specs Tapu Koko Hidden Power Ice vs. 252 HP / 0 SpD Gliscor: 284-336 (80.2 - 94.9%) -- guaranteed 2HKO

View Gliscor counters → Teams with Gliscor →

Garchomp

DragonGround SOFT CHECK View matchup

100.115

34.5

54.4% Standard error 4.98 points

DAMAGE CALCElectric Terrain

252+ Atk Garchomp Earthquake vs. 252 HP / 0 Def Tapu Koko: 410-486 (119.1 - 141.2%) -- guaranteed OHKO

View Garchomp counters → Teams with Garchomp →

Great Tusk

GroundFighting SOFT CHECK View matchup

112.134

32.2

51.0% Standard error 4.72 points

DAMAGE CALCElectric Terrain

252+ Atk Great Tusk Headlong Rush vs. 252 HP / 0 Def Tapu Koko: 498-588 (144.7 - 170.9%) -- guaranteed OHKO

View Great Tusk counters → Teams with Great Tusk →

Lopunny-Mega

NormalFighting OFFENSIVE CHECK View matchup

61.676

30.6

55.9% Standard error 6.32 points

DAMAGE CALCElectric Terrain

252+ Atk Lopunny-Mega Return vs. 252 HP / 0 Def Tapu Koko: 217-256 (63 - 74.4%) -- guaranteed 2HKO

View Lopunny-Mega counters →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

162.268

30.3

46.0% Standard error 3.91 points

DAMAGE CALCElectric Terrain

252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Tapu Koko: 446-528 (129.6 - 153.4%) -- guaranteed OHKO

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

Kingambit

DarkSteel SOFT CHECK View matchup

63.884

29.6

54.5% Standard error 6.23 points

DAMAGE CALCElectric Terrain

252+ Atk Kingambit Iron Head vs. 252 HP / 0 Def Tapu Koko: 169-201 (49.1 - 58.4%) -- 98% chance to 2HKO

View Kingambit counters → Teams with Kingambit →

Zamazenta

Fighting SOFT CHECK View matchup

154.189

28.7

44.7% Standard error 4.00 points

DAMAGE CALCElectric Terrain

252+ Atk Zamazenta Heavy Slam (120 BP) vs. 252 HP / 0 Def Tapu Koko: 156-184 (45.3 - 53.4%) -- 36.3% chance to 2HKO

View Zamazenta counters → Teams with Zamazenta →

Kyurem

DragonIce SOFT CHECK View matchup

46.473

23.7

53.0% Standard error 7.32 points

DAMAGE CALCElectric Terrain

252+ SpA Kyurem Earth Power vs. 252 HP / 252+ SpD Tapu Koko: 188-222 (54.6 - 64.5%) -- guaranteed 2HKO

View Kyurem counters → Teams with Kyurem →

Diancie-Mega

RockFairy SOFT CHECK View matchup

47.486

19.1

48.1% Standard error 7.25 points

DAMAGE CALCElectric Terrain

252+ SpA Diancie-Mega Earth Power vs. 252 HP / 252+ SpD Tapu Koko: 218-258 (63.3 - 75%) -- guaranteed 2HKO

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

Ogerpon-Wellspring

GrassWater SOFT CHECK View matchup

81.935

14.0

35.1% Standard error 5.27 points

DAMAGE CALCElectric Terrain

252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 0 Def Tapu Koko: 280-330 (81.3 - 95.9%) -- guaranteed 2HKO

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

Urshifu-Rapid-Strike

FightingWater SOFT CHECK View matchup

79.266

11.7

32.8% Standard error 5.27 points

DAMAGE CALCElectric Terrain

252+ Atk Urshifu-Rapid-Strike Surging Strikes (3 hits) vs. 252 HP / 0 Def Tapu Koko on a critical hit: 237-282 (68.8 - 81.9%) -- guaranteed 2HKO

View Urshifu-Rapid-Strike counters → Teams with Urshifu-Rapid-Strike →

Slowking-Galar

PoisonPsychic SOFT CHECK View matchup

43.577

7.5

36.7% Standard error 7.30 points

DAMAGE CALCElectric Terrain

252+ SpA Slowking-Galar Sludge Wave vs. 252 HP / 252+ SpD Tapu Koko: 264-312 (76.7 - 90.6%) -- guaranteed 2HKO

View Slowking-Galar counters → Teams with Slowking-Galar →

Alomomola

Water SOFT CHECK View matchup

170.798

4.6

15.8% Standard error 2.79 points

DAMAGE CALCElectric Terrain

252+ Atk Alomomola Liquidation vs. 252 HP / 0 Def Tapu Koko: 121-144 (35.1 - 41.8%) -- guaranteed 3HKO

View Alomomola counters → Teams with Alomomola →

Tapu Koko

ElectricFairy SOFT CHECK View matchup

21.189

2.5

45.8% Standard error 10.82 points

DAMAGE CALCElectric Terrain

0- SpA Choice Specs Tapu Koko Dazzling Gleam vs. 252 HP / 252+ SpD Tapu Koko: 96-114 (27.9 - 33.1%) -- guaranteed 4HKO

View Tapu Koko counters →

Zapdos

ElectricFlying SOFT CHECK View matchup

86.636

2.2

19.2% Standard error 4.23 points

DAMAGE CALCElectric Terrain

252+ SpA Zapdos Heat Wave vs. 252 HP / 252+ SpD Tapu Koko: 96-113 (27.9 - 32.8%) -- guaranteed 4HKO

View Zapdos counters → Teams with Zapdos →

Tornadus-Therian

Flying SOFT CHECK View matchup

96.402

0.6

15.2% Standard error 3.66 points

DAMAGE CALCElectric Terrain

252+ SpA Tornadus-Therian Heat Wave vs. 252 HP / 252+ SpD Tapu Koko: 88-104 (25.5 - 30.2%) -- guaranteed 4HKO

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

Raging Bolt

ElectricDragon SOFT CHECK View matchup

33.131

-1.0

31.2% Standard error 8.05 points

DAMAGE CALCElectric Terrain

252+ SpA Choice Specs Raging Bolt Rising Voltage (140 BP) vs. 252 HP / 252+ SpD Tapu Koko in Electric Terrain: 220-259 (63.9 - 75.2%) -- guaranteed 2HKO

View Raging Bolt counters → Teams with Raging Bolt →