Is Swampert-Mega viable in Gen 7 OU?

Swampert-Mega is ranked #29 in Gen 7 OU with 6.83% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Swampert-Mega in Gen 7 OU?

The best counter for Swampert-Mega in Gen 7 OU is Serperior with a 81.4% win rate when they meet. Based on Smogon's Feb 2026 - Apr 2026 usage data, the top Pokémon that beat Swampert-Mega include Serperior, Alakazam-Mega, Kartana, Ferrothorn, Rotom-Wash.

What is the best counter for Swampert-Mega in Gen 7 OU?

Serperior is the best counter for Swampert-Mega in Gen 7 OU, KOing or forcing it out in 81.4% of their encounters.

Swampert-Mega counters

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

#0260 Swampert-Mega

WaterGround

USAGE 6.8% #29

BASE STATS

HP 100

ATK 150

DEF 110

SPA 95

SPD 110

SPE 70

BST635

TYPE MATCHUPS

4×

Grass

½×

FirePoisonRockSteel

0×

Electric

Moves

Earthquake 100.0% Waterfall 87.5% Ice Punch 62.4% Stealth Rock 41.9% Power-Up Punch 23.3% Superpower 23.3% Toxic 18.5% Substitute 16.7%

Items

Swampertite 100.0%

Common Teammates

Pelipper87.5%

Greninja69.5%

Ferrothorn65.8%

Tornadus-Therian49.8%

Checks & Counters

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

# Checker Encounters Reliability KO Rate

Serperior

Grass DEFENSIVE COUNTER

21.381

81.4% dies 8.41%

DAMAGE CALC

252+ Atk Swampert-Mega Ice Punch vs. 252 HP / 252+ Def Serperior: 150-178 (42.3 - 50.2%) -- guaranteed 3HKO after Leftovers recovery

View Serperior counters → Teams with Serperior →

Alakazam-Mega

Psychic OFFENSIVE CHECK

58.631

67.6% dies 8.60%

DAMAGE CALC

252+ SpA Alakazam-Mega Energy Ball vs. 252 HP / 252+ SpD Swampert-Mega: 364-432 (90 - 106.9%) -- 43.8% chance to OHKO

View Alakazam-Mega counters → Teams with Alakazam-Mega →

Kartana

GrassSteel OFFENSIVE CHECK

108.937

62.5% dies 6.52%

DAMAGE CALC

252+ Atk Kartana Leaf Blade vs. 252 HP / 0 Def Swampert-Mega: 768-904 (190 - 223.7%) -- guaranteed OHKO

View Kartana counters → Teams with Kartana →

Ferrothorn

GrassSteel DEFENSIVE COUNTER

41.698

58.6% dies 7.63%

DAMAGE CALC

252+ Atk Swampert-Mega Superpower vs. 252 HP / 252+ Def Ferrothorn: 192-226 (54.5 - 64.2%) -- guaranteed 2HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

Rotom-Wash

ElectricWater OFFENSIVE CHECK

23.441

57.9% dies 10.20%

DAMAGE CALC

252+ SpA Rotom-Wash Hydro Pump vs. 252 HP / 252+ SpD Swampert-Mega: 115-136 (28.4 - 33.6%) -- 0.5% chance to 3HKO

View Rotom-Wash counters → Teams with Rotom-Wash →

Tangrowth

Grass DEFENSIVE COUNTER

20.548

57.2% dies 10.92%

DAMAGE CALC

252+ Atk Swampert-Mega Ice Punch vs. 252 HP / 252+ Def Tangrowth: 124-148 (30.6 - 36.6%) -- 65% chance to 3HKO

View Tangrowth counters → Teams with Tangrowth →

Skarmory

SteelFlying DEFENSIVE COUNTER

33.665

56.3% dies 8.55%

DAMAGE CALC

252+ Atk Swampert-Mega Waterfall vs. 252 HP / 252+ Def Skarmory: 91-108 (27.2 - 32.3%) -- guaranteed 4HKO

View Skarmory counters → Teams with Skarmory →

Cresselia

Psychic SOFT CHECK

28.606

52.3% dies 9.34%

DAMAGE CALC

252+ SpA Cresselia Future Sight vs. 252 HP / 252+ SpD Swampert-Mega: 102-120 (25.2 - 29.7%) -- guaranteed 4HKO

View Cresselia counters → Teams with Cresselia →

Tapu Bulu

GrassFairy SOFT CHECK

21.475

52.1% dies 10.78%

DAMAGE CALCGrassy Terrain

252+ Atk Choice Band Tapu Bulu Wood Hammer vs. 252 HP / 0 Def Swampert-Mega in Grassy Terrain: 1788-2104 (442.5 - 520.7%) -- guaranteed OHKO

View Tapu Bulu counters → Teams with Tapu Bulu →

Kyurem-Black

DragonIce SOFT CHECK

50.352

49.6% dies 9.93%

DAMAGE CALC

252+ Atk Kyurem-Black Freeze Shock vs. 252 HP / 0 Def Swampert-Mega: 283-334 (70 - 82.6%) -- guaranteed 2HKO

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

Medicham-Mega

FightingPsychic SOFT CHECK

49.903

48.2% dies 10.00%

DAMAGE CALC

252+ Atk Pure Power Medicham-Mega High Jump Kick vs. 252 HP / 0 Def Swampert-Mega: 357-421 (88.3 - 104.2%) -- 25% chance to OHKO

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

Greninja

WaterDark SOFT CHECK

82.145

47.8% dies 7.69%

DAMAGE CALC

252+ SpA Choice Specs Greninja Hydro Pump vs. 252 HP / 252+ SpD Swampert-Mega: 169-201 (41.8 - 49.7%) -- guaranteed 3HKO

View Greninja counters → Teams with Greninja →

Lopunny-Mega

NormalFighting SOFT CHECK

20.442

46.5% dies 11.03%

DAMAGE CALC

252+ Atk Lopunny-Mega High Jump Kick vs. 252 HP / 0 Def Swampert-Mega: 223-264 (55.1 - 65.3%) -- guaranteed 2HKO

View Lopunny-Mega counters → Teams with Lopunny-Mega →

Celesteela

SteelFlying SOFT CHECK

45.206

44.3% dies 10.41%

DAMAGE CALC

252+ Atk Celesteela Explosion vs. 252 HP / 0 Def Swampert-Mega: 232-273 (57.4 - 67.5%) -- guaranteed 2HKO

View Celesteela counters → Teams with Celesteela →

Charizard-Mega-Y

FireFlying SOFT CHECK

27.772

44.0% dies 9.42%

DAMAGE CALCSun

252+ SpA Charizard-Mega-Y Solar Beam vs. 252 HP / 252+ SpD Swampert-Mega: 452-532 (111.8 - 131.6%) -- guaranteed OHKO

View Charizard-Mega-Y counters → Teams with Charizard-Mega-Y →

Clefable

Fairy SOFT CHECK

32.279

39.0% dies 8.59%

DAMAGE CALC

252+ SpA Clefable Moonblast vs. 252 HP / 252+ SpD Swampert-Mega: 93-111 (23 - 27.4%) -- 62.7% chance to 4HKO

View Clefable counters → Teams with Clefable →

Tapu Lele

PsychicFairy SOFT CHECK

59.464

32.7% dies 8.55%

DAMAGE CALCPsychic Terrain

252+ SpA Choice Specs Tapu Lele Psyshock vs. 252 HP / 0 Def Swampert-Mega in Psychic Terrain: 297-351 (73.5 - 86.8%) -- guaranteed 2HKO

View Tapu Lele counters → Teams with Tapu Lele →

Zapdos

ElectricFlying SOFT CHECK

32.663

30.9% dies 8.08%

DAMAGE CALC

252+ SpA Zapdos Hidden Power Ice vs. 252 HP / 252+ SpD Swampert-Mega: 48-57 (11.8 - 14.1%) -- possible 8HKO

View Zapdos counters → Teams with Zapdos →

Tapu Fini

WaterFairy SOFT CHECK

54.853

28.9% dies 8.65%

DAMAGE CALCMisty Terrain

Tapu Fini Nature's Madness vs. 252 HP Swampert-Mega: 202-202 (50 - 50%) -- guaranteed 2HKO

View Tapu Fini counters → Teams with Tapu Fini →

Tornadus-Therian

Flying SOFT CHECK

76.724

26.7% dies 8.55%

DAMAGE CALC

252+ SpA Tornadus-Therian Hurricane vs. 252 HP / 252+ SpD Swampert-Mega: 118-141 (29.2 - 34.9%) -- 11.1% chance to 3HKO

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

Tyranitar-Mega

RockDark SOFT CHECK

27.775

25.1% dies 8.23%

DAMAGE CALCSand

252+ Atk Tyranitar-Mega Crunch vs. 252 HP / 0 Def Swampert-Mega: 159-187 (39.3 - 46.2%) -- guaranteed 3HKO

View Tyranitar-Mega counters → Teams with Tyranitar-Mega →

Chansey

Normal SOFT CHECK

28.976

21.5% dies 7.63%

DAMAGE CALC

Chansey Seismic Toss vs. 252 HP Swampert-Mega: 100-100 (24.7 - 24.7%) -- guaranteed 5HKO

View Chansey counters → Teams with Chansey →

Landorus-Therian

GroundFlying SOFT CHECK

271.421

17.4% dies 3.94%

DAMAGE CALC

252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Swampert-Mega: 180-213 (44.5 - 52.7%) -- 21.5% chance to 2HKO

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

Tapu Koko

ElectricFairy SOFT CHECK

88.035

15.9% dies 5.41%

DAMAGE CALCElectric Terrain

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

View Tapu Koko counters → Teams with Tapu Koko →

Magearna

SteelFairy SOFT CHECK

182.419

13.9% dies 4.31%

DAMAGE CALC

252+ SpA Magearna Fleur Cannon vs. 252 HP / 252+ SpD Swampert-Mega: 157-186 (38.8 - 46%) -- guaranteed 3HKO

View Magearna counters → Teams with Magearna →

Toxapex

PoisonWater SOFT CHECK

101.088

11.0% dies 4.27%

DAMAGE CALC

252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Swampert-Mega: 57-67 (14.1 - 16.5%) -- possible 7HKO

View Toxapex counters → Teams with Toxapex →

Gliscor

GroundFlying SOFT CHECK

30.225

9.5% dies 5.34%

DAMAGE CALC

252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Swampert-Mega: 135-159 (33.4 - 39.3%) -- guaranteed 3HKO

View Gliscor counters → Teams with Gliscor →

Heatran

FireSteel SOFT CHECK

103.112

7.7% dies 4.49%

DAMAGE CALC

252+ SpA Heatran Earth Power vs. 252 HP / 252+ SpD Swampert-Mega: 73-87 (18 - 21.5%) -- possible 5HKO

View Heatran counters → Teams with Heatran →

Ranked #29 with 6.83% usage. Sorted by reliability score.