Is Keldeo viable in Gen 9 UU?

Keldeo is ranked #5 in Gen 9 UU with 20.14% usage according to Smogon Jul 2026 - Sep 2026 data.

What beats Keldeo in Gen 9 UU?

Latios has the strongest conservative score in this observed Jul 2026 - Sep 2026 sample. The target was knocked out or switched out in 62.1% of 140.92973396769924 relevant encounters. Standard error is 4.1 points. Sets and switch conditions can change the result.

How are Keldeo matchup checks ranked in Gen 9 UU?

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

Keldeo counters

Gen 9 UU · Smogon source period Jul 2026 - Sep 2026

#0647 Keldeo

WaterFighting

USAGE 20.1% #5

ABILITYJustified

BASE STATS

HP 91

ATK 72

DEF 90

SPA 129

SPD 90

SPE 108

BST580

TYPE MATCHUPS

2×

ElectricGrassFlyingPsychicFairy

½×

FireWaterIceBugRockDarkSteel

Moves

Surf 96.8% Secret Sword 79.0% Vacuum Wave 56.4% Flip Turn 41.1% Calm Mind 41.0% Icy Wind 32.4% Pain Split 17.1% Substitute 14.6%

Items

Leftovers 42.8% Choice Specs 29.8% Rocky Helmet 12.3% Heavy-Duty Boots 6.5% Life Orb 4.9% Choice Scarf 1.9% Metronome 1.1% Mystic Water 0.4%

Abilities

Justified100.0%

Tera Types

Steel 56.2% Water 28.9% Fighting 9.2% Ghost 1.4% Ground 1.4% Fairy 0.8% Poison 0.7% Grass 0.4%

Common Teammates

Leading observed checks

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

Team core to explore

Keldeo + Excadrill 37.1% 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

Latios

DragonPsychic OFFENSIVE CHECK View matchup

140.93

45.7

62.1% Standard error 4.09 points

DAMAGE CALC

252+ SpA Soul Dew Latios Luster Purge vs. 252 HP / 252+ SpD Keldeo: 318-374 (82.3 - 96.8%) -- guaranteed 2HKO after Leftovers recovery

View Latios counters →

Toxapex

PoisonWater SOFT CHECK View matchup

28.878

17.8

54.8% Standard error 9.26 points

DAMAGE CALC

252+ SpA Toxapex Sludge Bomb vs. 252 HP / 252+ SpD Keldeo: 72-85 (18.6 - 22%) -- possible 6HKO

View Toxapex counters →

Lokix

BugDark SOFT CHECK View matchup

48.995

14.9

43.2% Standard error 7.08 points

DAMAGE CALC

252+ Atk Choice Band Tinted Lens Lokix Knock Off (97.5 BP) vs. 252 HP / 0 Def Keldeo: 240-284 (62.1 - 73.5%) -- guaranteed 2HKO

View Lokix counters → Teams with Lokix →

Manaphy

Water DEFENSIVE CHECK View matchup

22.011

13.7

56.0% Standard error 10.58 points

DAMAGE CALC

252+ SpA Keldeo Secret Sword vs. 252 HP / 0 Def Manaphy: 153-180 (37.8 - 44.5%) -- guaranteed 3HKO after Leftovers recovery

View Manaphy counters →

Keldeo

WaterFighting SOFT CHECK View matchup

25.74

5.0

44.1% Standard error 9.79 points

DAMAGE CALC

252+ SpA Keldeo Secret Sword vs. 252 HP / 0 Def Keldeo: 166-196 (43 - 50.7%) -- guaranteed 3HKO after Leftovers recovery

View Keldeo counters →

Slowking

WaterPsychic SOFT CHECK View matchup

26.024

-2.0

35.5% Standard error 9.38 points

DAMAGE CALC

252+ SpA Slowking Future Sight vs. 252 HP / 252+ SpD Keldeo: 278-330 (72 - 85.4%) -- guaranteed 2HKO after Leftovers recovery

View Slowking counters → Teams with Slowking →

Heatran

FireSteel SOFT CHECK View matchup

79.614

-3.4

10.0% Standard error 3.37 points

DAMAGE CALC

252+ SpA Heatran Earth Power vs. 252 HP / 252+ SpD Keldeo: 84-99 (21.7 - 25.6%) -- possible 5HKO

View Heatran counters →

Hydrapple

GrassDragon SOFT CHECK View matchup

21.66

-4.3

37.3% Standard error 10.39 points

DAMAGE CALC

252+ SpA Choice Specs Hydrapple Leaf Storm vs. 252 HP / 252+ SpD Keldeo: 510-602 (132.1 - 155.9%) -- guaranteed OHKO

View Hydrapple counters →

Excadrill

GroundSteel SOFT CHECK View matchup

23.485

-7.2

30.9% Standard error 9.53 points

DAMAGE CALC

252+ Atk Excadrill Earthquake vs. 252 HP / 0 Def Keldeo: 202-238 (52.3 - 61.6%) -- 97.7% chance to 2HKO after Leftovers recovery

View Excadrill counters → Teams with Excadrill →

Mandibuzz

DarkFlying SOFT CHECK View matchup

21.653

-13.6

22.1% Standard error 8.91 points

DAMAGE CALC

252+ Atk Mandibuzz Brave Bird vs. 252 HP / 0 Def Keldeo: 302-356 (78.2 - 92.2%) -- guaranteed 2HKO after Leftovers recovery

View Mandibuzz counters →

Skarmory

SteelFlying SOFT CHECK View matchup

21.11

-15.3

7.1% Standard error 5.59 points

DAMAGE CALC

252+ Atk Skarmory Brave Bird vs. 252 HP / 0 Def Keldeo: 338-402 (87.5 - 104.1%) -- 25% chance to OHKO

View Skarmory counters → Teams with Skarmory →

Ranked #5 with 20.14% usage. Sorted by conservative score.