Is Keldeo viable in Gen 7 OU?

Keldeo is ranked #37 in Gen 7 OU with 5.97% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Keldeo in Gen 7 OU?

The best counter for Keldeo in Gen 7 OU is Latias-Mega with a 91.7% win rate when they meet. Based on Smogon's Feb 2026 - Apr 2026 usage data, the top Pokémon that beat Keldeo include Latias-Mega, Serperior, Tapu Fini, Kartana, Tapu Lele.

What is the best counter for Keldeo in Gen 7 OU?

Latias-Mega is the best counter for Keldeo in Gen 7 OU, KOing or forcing it out in 91.7% of their encounters.

Keldeo counters

Gen 7 OU · Sorted by reliability score · Smogon · Feb 2026 - Apr 2026

#0647 Keldeo

WaterFighting

USAGE 6.0% #37

BASE STATS

HP 91

ATK 72

DEF 90

SPA 129

SPD 90

SPE 108

BST580

TYPE MATCHUPS

2×

ElectricGrassFlyingPsychicFairy

½×

FireWaterIceBugRockDarkSteel

Moves

Secret Sword 99.9% Scald 84.9% Calm Mind 83.3% Substitute 78.9% Hydro Pump 13.3% Surf 9.8% Taunt 7.9% Toxic 6.4%

Items

Leftovers 78.2% Waterium Z 8.4% Choice Scarf 7.9% Choice Specs 5.2% Normalium Z 0.2% Assault Vest 0.1% Life Orb 0.1% Fightinium Z 0.0%

Common Teammates

Landorus-Therian22.0%

Ferrothorn15.5%

Mawile-Mega14.0%

Checks & Counters

Ranked by reliability — blends KO rate with how often each Pokémon is matched up.

# Checker Encounters Reliability KO Rate

Latias-Mega

DragonPsychic DEFENSIVE COUNTER

21.075

91.7% dies 6.01%

DAMAGE CALC

252+ SpA Keldeo Secret Sword vs. 252 HP / 0 Def Latias-Mega: 65-77 (17.8 - 21.1%) -- possible 5HKO

View Latias-Mega counters → Teams with Latias-Mega →

Serperior

Grass DEFENSIVE COUNTER

21.397

81.4% dies 8.41%

DAMAGE CALC

252+ SpA Keldeo Secret Sword vs. 252 HP / 0 Def Serperior: 159-187 (44.9 - 52.8%) -- guaranteed 3HKO after Leftovers recovery

View Serperior counters → Teams with Serperior →

Tapu Fini

WaterFairy DEFENSIVE COUNTER

60.484

73.3% dies 8.02%

DAMAGE CALCMisty Terrain

252+ SpA Keldeo Secret Sword vs. 252 HP / 0 Def Tapu Fini: 67-80 (19.4 - 23.2%) -- possible 6HKO

View Tapu Fini counters → Teams with Tapu Fini →

Kartana

GrassSteel OFFENSIVE CHECK

21.234

65.9% dies 10.29%

DAMAGE CALC

252+ Atk Kartana Leaf Blade vs. 252 HP / 0 Def Keldeo: 456-536 (118.1 - 138.8%) -- guaranteed OHKO

View Kartana counters → Teams with Kartana →

Tapu Lele

PsychicFairy OFFENSIVE CHECK

24.27

61.1% dies 9.90%

DAMAGE CALCPsychic Terrain

252+ SpA Choice Specs Tapu Lele Psyshock vs. 252 HP / 0 Def Keldeo in Psychic Terrain: 704-830 (182.3 - 215%) -- guaranteed OHKO

View Tapu Lele counters → Teams with Tapu Lele →

Tornadus-Therian

Flying OFFENSIVE CHECK

30.101

60.2% dies 8.92%

DAMAGE CALC

252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Keldeo: 270-320 (69.9 - 82.9%) -- guaranteed 2HKO after Leftovers recovery

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

Tapu Koko

ElectricFairy SOFT CHECK

120.963

49.3% dies 7.67%

DAMAGE CALCElectric Terrain

252+ SpA Life Orb Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Keldeo in Electric Terrain: 393-463 (101.8 - 119.9%) -- guaranteed OHKO

View Tapu Koko counters → Teams with Tapu Koko →

Clefable

Fairy SOFT CHECK

28.948

44.8% dies 9.24%

DAMAGE CALC

252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Keldeo: 212-252 (54.9 - 65.2%) -- guaranteed 2HKO after Leftovers recovery

View Clefable counters → Teams with Clefable →

Toxapex

PoisonWater SOFT CHECK

127.46

36.4% dies 7.27%

DAMAGE CALC

252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Keldeo: 32-38 (8.2 - 9.8%)

View Toxapex counters → Teams with Toxapex →

Medicham-Mega

FightingPsychic SOFT CHECK

24.84

32.8% dies 9.42%

DAMAGE CALC

252+ Atk Pure Power Medicham-Mega Zen Headbutt vs. 252 HP / 0 Def Keldeo: 524-618 (135.7 - 160.1%) -- guaranteed OHKO

View Medicham-Mega counters → Teams with Medicham-Mega →

Magearna

SteelFairy SOFT CHECK

131.256

23.2% dies 6.03%

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

90.833

21.1% dies 7.33%

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

147

12.0% dies 4.44%

DAMAGE CALC

252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Keldeo: 213-252 (55.1 - 65.2%) -- guaranteed 2HKO after Leftovers recovery

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

Kyurem-Black

DragonIce SOFT CHECK

32.913

6.9% dies 4.43%

DAMAGE CALC

252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Keldeo: 320-378 (82.9 - 97.9%) -- guaranteed 2HKO after Leftovers recovery

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

Gliscor

GroundFlying SOFT CHECK

43.188

6.8% dies 5.40%

DAMAGE CALC

252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Keldeo: 159-187 (41.1 - 48.4%) -- guaranteed 3HKO after Leftovers recovery

View Gliscor counters → Teams with Gliscor →

Heatran

FireSteel SOFT CHECK

42.585

5.1% dies 3.38%

DAMAGE CALC

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

View Heatran counters → Teams with Heatran →

Ranked #37 with 5.97% usage. Sorted by reliability score.