Is Tapu Koko viable in Gen 7 OU?

Tapu Koko is ranked #4 in Gen 7 OU with 22.35% usage according to Smogon May 2026 - Jul 2026 data.

What beats Tapu Koko in Gen 7 OU?

Venusaur-Mega has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 86.4% of 23.791327366665964 relevant encounters. Standard error is 7.0 points. Sets and switch conditions can change the result.

How are Tapu Koko matchup checks ranked in Gen 7 OU?

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

#0785 Tapu Koko

ElectricFairy

USAGE 22.4% #4

BASE STATS

HP 70

ATK 115

DEF 85

SPA 95

SPD 75

SPE 130

BST570

TYPE MATCHUPS

2×

PoisonGround

½×

ElectricFightingFlyingBugDark

0×

Dragon

Moves

Thunderbolt 71.0% Volt Switch 63.7% Hidden Power Ice 60.7% Dazzling Gleam 42.5% Roost 38.1% U-turn 34.7% Taunt 30.4% Nature's Madness 18.1%

Items

Life Orb 33.8% Fairium Z 17.6% Magnet 10.8% Choice Specs 8.6% Choice Scarf 7.9% Electrium Z 5.9% Light Clay 4.7% Shuca Berry 3.7%

Common Teammates

Landorus-Therian64.6%

Browse Gen 7 OU teams using Tapu Koko →

Explore Tapu Koko + Excadrill teams 53 score Explore Tapu Koko + Ferrothorn 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

Tapu Koko + Landorus-Therian 64.6% 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

23.791

58.3

86.4% Standard error 7.02 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Venusaur-Mega: 182-182 (50 - 50%) -- guaranteed 2HKO

View Venusaur-Mega counters →

Swampert-Mega

WaterGround OFFENSIVE CHECK View matchup

158.882

54.2

77.0% Standard error 5.70 points

DAMAGE CALCElectric Terrain

252+ Atk Swampert-Mega Earthquake vs. 252 HP / 0 Def Tapu Koko: 458-540 (133.1 - 156.9%) -- guaranteed OHKO

View Swampert-Mega counters →

Gastrodon

WaterGround DEFENSIVE CHECK View matchup

55.439

53.7

82.4% Standard error 7.17 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Gastrodon: 213-213 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery

View Gastrodon counters →

Excadrill

GroundSteel OFFENSIVE CHECK View matchup

175.231

53.2

75.5% Standard error 5.57 points

DAMAGE CALCElectric Terrain

252+ Atk Excadrill Earthquake vs. 252 HP / 0 Def Tapu Koko: 422-500 (122.6 - 145.3%) -- guaranteed OHKO

View Excadrill counters → Teams with Excadrill →

Ferrothorn

GrassSteel DEFENSIVE CHECK View matchup

240.489

52.6

72.1% Standard error 4.89 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Ferrothorn: 176-176 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

Alakazam-Mega

Psychic OFFENSIVE CHECK View matchup

64.491

52.4

80.2% Standard error 6.96 points

DAMAGE CALCElectric Terrain

252+ SpA Alakazam-Mega Psychic vs. 252 HP / 252+ SpD Tapu Koko: 175-207 (50.8 - 60.1%) -- guaranteed 2HKO

View Alakazam-Mega counters →

Chansey

Normal DEFENSIVE CHECK View matchup

128.864

48.6

74.0% Standard error 6.33 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Chansey: 352-352 (50 - 50%) -- guaranteed 2HKO

View Chansey counters → Teams with Chansey →

Tapu Bulu

GrassFairy OFFENSIVE CHECK View matchup

82.358

43.7

71.3% Standard error 6.88 points

DAMAGE CALCGrassy Terrain

252+ Atk Tapu Bulu Wood Hammer vs. 252 HP / 0 Def Tapu Koko in Grassy Terrain: 370-436 (107.5 - 126.7%) -- guaranteed OHKO

View Tapu Bulu counters →

Tangrowth

Grass DEFENSIVE CHECK View matchup

59.263

40.3

65.1% Standard error 6.19 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Tangrowth: 202-202 (50 - 50%) -- guaranteed 2HKO

View Tangrowth counters →

Seismitoad

WaterGround OFFENSIVE CHECK View matchup

49.918

39.2

73.9% Standard error 8.68 points

DAMAGE CALCElectric Terrain

0- Atk Seismitoad Earthquake vs. 252 HP / 0 Def Tapu Koko: 212-252 (61.6 - 73.2%) -- guaranteed 2HKO

View Seismitoad counters → Teams with Seismitoad →

Hippowdon

Ground DEFENSIVE CHECK View matchup

54.012

38.0

72.3% Standard error 8.57 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Hippowdon: 210-210 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery

View Hippowdon counters →

Heatran

FireSteel OFFENSIVE CHECK View matchup

157.876

34.1

60.5% Standard error 6.59 points

DAMAGE CALCElectric Terrain

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

View Heatran counters → Teams with Heatran →

Serperior

Grass DEFENSIVE CHECK View matchup

133.821

31.6

60.3% Standard error 7.17 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Serperior: 177-177 (50 - 50%) -- guaranteed 3HKO after Leftovers recovery

View Serperior counters → Teams with Serperior →

Lopunny-Mega

NormalFighting OFFENSIVE CHECK View matchup

102.418

30.4

63.2% Standard error 8.21 points

DAMAGE CALCElectric Terrain

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

View Lopunny-Mega counters →

Magearna

SteelFairy SOFT CHECK View matchup

338.797

29.9

48.4% Standard error 4.63 points

DAMAGE CALCElectric Terrain

252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Tapu Koko: 202-238 (58.7 - 69.1%) -- guaranteed 2HKO

View Magearna counters → Teams with Magearna →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

571.18

26.6

40.8% Standard error 3.53 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 →

Tapu Lele

PsychicFairy SOFT CHECK View matchup

144.547

25.7

54.0% Standard error 7.07 points

DAMAGE CALCPsychic Terrain

252+ SpA Choice Specs Tapu Lele Psyshock vs. 252 HP / 0 Def Tapu Koko in Psychic Terrain: 370-436 (107.5 - 126.7%) -- guaranteed OHKO

View Tapu Lele counters → Teams with Tapu Lele →

Scizor-Mega

BugSteel OFFENSIVE CHECK View matchup

39.543

24.6

56.2% Standard error 7.89 points

DAMAGE CALCElectric Terrain

252+ Atk Scizor-Mega Frustration vs. 252 HP / 0 Def Tapu Koko: 156-184 (45.3 - 53.4%) -- 36.3% chance to 2HKO

View Scizor-Mega counters →

Greninja

WaterDark SOFT CHECK View matchup

255.55

20.6

41.7% Standard error 5.27 points

DAMAGE CALCElectric Terrain

252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Tapu Koko: 217-256 (63 - 74.4%) -- guaranteed 2HKO

View Greninja counters → Teams with Greninja →

Cresselia

Psychic SOFT CHECK View matchup

79.345

20.4

52.1% Standard error 7.91 points

DAMAGE CALCElectric Terrain

252+ SpA Cresselia Future Sight vs. 252 HP / 252+ SpD Tapu Koko: 129-153 (37.5 - 44.4%) -- guaranteed 3HKO

View Cresselia counters → Teams with Cresselia →

Gliscor

GroundFlying SOFT CHECK View matchup

194.116

20.2

44.3% Standard error 6.03 points

DAMAGE CALCElectric Terrain

252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Tapu Koko: 332-392 (96.5 - 113.9%) -- 81.3% chance to OHKO

View Gliscor counters → Teams with Gliscor →

Tapu Koko

ElectricFairy SOFT CHECK View matchup

179.937

19.3

44.3% Standard error 6.25 points

DAMAGE CALCElectric Terrain

Tapu Koko Nature's Madness vs. 252 HP Tapu Koko: 172-172 (50 - 50%) -- guaranteed 2HKO

View Tapu Koko counters → Teams with Tapu Koko →

Latias-Mega

DragonPsychic SOFT CHECK View matchup

98.145

17.5

49.6% Standard error 8.03 points

DAMAGE CALCElectric Terrain

252+ SpA Latias-Mega Ice Beam vs. 252 HP / 252+ SpD Tapu Koko: 99-117 (28.7 - 34%) -- 1.2% chance to 3HKO

View Latias-Mega counters →

Jirachi

SteelPsychic SOFT CHECK View matchup

60.037

15.9

51.7% Standard error 8.94 points

DAMAGE CALCElectric Terrain

252+ Atk Jirachi Iron Head vs. 252 HP / 0 Def Tapu Koko: 136-162 (39.5 - 47%) -- guaranteed 3HKO

View Jirachi counters → Teams with Jirachi →

Kartana

GrassSteel SOFT CHECK View matchup

178.313

13.6

38.8% Standard error 6.31 points

DAMAGE CALCElectric Terrain

252+ Atk Kartana Giga Impact vs. 252 HP / 0 Def Tapu Koko: 265-312 (77 - 90.6%) -- guaranteed 2HKO

View Kartana counters → Teams with Kartana →

Reuniclus

Psychic SOFT CHECK View matchup

53.756

13.1

50.9% Standard error 9.46 points

DAMAGE CALCElectric Terrain

252+ SpA Reuniclus Psyshock vs. 252 HP / 0 Def Tapu Koko: 160-189 (46.5 - 54.9%) -- 62.1% chance to 2HKO

View Reuniclus counters →

Victini

PsychicFire SOFT CHECK View matchup

99.839

12.3

46.5% Standard error 8.56 points

DAMAGE CALCElectric Terrain

252+ Atk Victini V-create vs. 252 HP / 0 Def Tapu Koko: 307-363 (89.2 - 105.5%) -- 31.3% chance to OHKO

View Victini counters → Teams with Victini →

Medicham-Mega

FightingPsychic SOFT CHECK View matchup

201.182

6.8

27.6% Standard error 5.21 points

DAMAGE CALCElectric Terrain

252+ Atk Pure Power Medicham-Mega Poison Jab vs. 252 HP / 0 Def Tapu Koko: 364-430 (105.8 - 125%) -- guaranteed OHKO

View Medicham-Mega counters →

Kyurem-Black

DragonIce SOFT CHECK View matchup

82.463

6.6

44.1% Standard error 9.38 points

DAMAGE CALCElectric Terrain

252+ Atk Kyurem-Black Freeze Shock vs. 252 HP / 0 Def Tapu Koko: 352-415 (102.3 - 120.6%) -- guaranteed OHKO

View Kyurem-Black counters → Teams with Kyurem-Black →

Ditto

Normal SOFT CHECK View matchup

20.452

5.0

49.2% Standard error 11.05 points

DAMAGE CALCElectric Terrain

Ditto vs. Tapu Koko: 0-0 (0 - 0%)

View Ditto counters → Teams with Ditto →

Ranked #4 with 22.35% usage. Sorted by conservative score.