Is Keldeo viable in Gen 7 OU?

Keldeo is ranked #57 in Gen 7 OU with 2.61% usage according to Smogon May 2026 - Jul 2026 data.

What beats Keldeo in Gen 7 OU?

Tapu Fini has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 75.3% of 22.3215647233962 relevant encounters. Standard error is 9.1 points. Sets and switch conditions can change the result.

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

Keldeo counters

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

#0647 Keldeo

WaterFighting

USAGE 2.6% #57

BASE STATS

HP 91

ATK 72

DEF 90

SPA 129

SPD 90

SPE 108

BST580

TYPE MATCHUPS

2×

ElectricGrassFlyingPsychicFairy

½×

FireWaterIceBugRockDarkSteel

Moves

Secret Sword 97.1% Scald 55.1% Calm Mind 46.0% Hydro Pump 38.3% Substitute 33.1% Surf 31.2% Hidden Power Electric 26.0% Toxic 22.6%

Items

Leftovers 32.0% Choice Scarf 26.7% Choice Specs 24.7% Waterium Z 15.9% Life Orb 0.4% Fightinium Z 0.1% Normalium Z 0.1% nothing 0.0%

Common Teammates

Landorus-Therian60.5%

Heatran43.3%

Scizor-Mega30.1%

Tapu Fini28.4%

Thundurus-Therian21.2%

Mawile-Mega18.7%

Ferrothorn16.8%

Tornadus-Therian16.3%

Leading observed checks

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

Team core to explore

Keldeo + Landorus-Therian 60.5% 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

Tapu Fini

WaterFairy DEFENSIVE CHECK View matchup

22.322

38.8

75.3% Standard error 9.13 points

DAMAGE CALCMisty Terrain

252+ SpA Keldeo Hidden Power Electric vs. 252 HP / 252+ SpD Tapu Fini: 88-104 (25.5 - 30.2%) -- 0.2% chance to 4HKO after Leftovers recovery

View Tapu Fini counters → Teams with Tapu Fini →

Magearna

SteelFairy SOFT CHECK View matchup

21.223

-2.4

40.2% Standard error 10.64 points

DAMAGE CALC

252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Keldeo: 360-426 (93.2 - 110.3%) -- 62.5% chance to OHKO

View Magearna counters → Teams with Magearna →

Greninja

WaterDark SOFT CHECK View matchup

47.762

-9.9

25.7% Standard error 8.89 points

DAMAGE CALC

252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Keldeo: 97-114 (25.1 - 29.5%) -- guaranteed 5HKO after Leftovers recovery

View Greninja counters → Teams with Greninja →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

66.224

-10.8

8.6% Standard error 4.84 points

DAMAGE CALC

252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Keldeo: 354-417 (91.7 - 108%) -- 50% chance to OHKO

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

Ranked #57 with 2.61% usage. Sorted by conservative score.