Is Tapu Koko viable in Gen 8 OU?

Tapu Koko is ranked #20 in Gen 8 OU with 10.89% usage according to Smogon May 2026 - Jul 2026 data.

What beats Tapu Koko in Gen 8 OU?

Landorus-Therian has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 56.9% of 30.676959453183528 relevant encounters. Standard error is 8.9 points. Sets and switch conditions can change the result.

How are Tapu Koko matchup checks ranked in Gen 8 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 8 OU · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0785 Tapu Koko

ElectricFairy

USAGE 10.9% #20

ABILITYTelepathy

BASE STATS

HP 70

ATK 115

DEF 85

SPA 95

SPD 75

SPE 130

BST570

TYPE MATCHUPS

2×

PoisonGround

½×

ElectricFightingFlyingBugDark

0×

Dragon

Moves

Dazzling Gleam 96.6% Roost 72.8% Thunderbolt 66.6% Volt Switch 52.9% Calm Mind 25.8% Grass Knot 23.1% U-turn 22.2% Toxic 17.5%

Items

Heavy-Duty Boots 68.9% Choice Specs 20.1% Rocky Helmet 5.4% Terrain Extender 2.0% Light Clay 1.9% Air Balloon 0.7% Life Orb 0.6% Leftovers 0.3%

Abilities

Telepathy0.0%

Common Teammates

Landorus-Therian58.4%

Ferrothorn52.5%

Clefable38.5%

Urshifu-Rapid-Strike29.9%

Dragonite28.8%

Slowking-Galar26.5%

Heatran25.9%

Tornadus-Therian24.5%

Browse Gen 8 OU teams using Tapu Koko →

Explore Tapu Koko + Landorus-Therian teams 21 score Explore Tapu Koko + Garchomp teams 12 score Explore Tapu Koko + Clefable teams 11 score Explore Tapu Koko + Toxapex teams -14 score Explore Tapu Koko + Tornadus-Therian teams -17 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 58.4% 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

Landorus-Therian

GroundFlying OFFENSIVE CHECK View matchup

30.677

21.2

56.9% Standard error 8.94 points

DAMAGE CALC

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 →

Garchomp

DragonGround OFFENSIVE CHECK View matchup

20.375

12.3

56.3% Standard error 10.99 points

DAMAGE CALC

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 →

Clefable

Fairy SOFT CHECK View matchup

25.435

10.9

50.6% Standard error 9.91 points

DAMAGE CALC

252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Tapu Koko: 118-141 (34.3 - 40.9%) -- guaranteed 3HKO

View Clefable counters → Teams with Clefable →

Toxapex

PoisonWater SOFT CHECK View matchup

22.261

-14.0

19.9% Standard error 8.46 points

DAMAGE CALC

252+ Atk Toxapex Poison Jab vs. 252 HP / 0 Def Tapu Koko: 206-246 (59.8 - 71.5%) -- guaranteed 2HKO

View Toxapex counters → Teams with Toxapex →

Tornadus-Therian

Flying SOFT CHECK View matchup

20.298

-16.7

10.5% Standard error 6.81 points

DAMAGE CALC

252+ Atk Tornadus-Therian Superpower vs. 252 HP / 0 Def Tapu Koko: 68-81 (19.7 - 23.5%) -- possible 5HKO

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

Ranked #20 with 10.89% usage. Sorted by conservative score.