Is Diancie-Mega viable in Gen 9 National Dex?

Diancie-Mega is ranked #18 in Gen 9 National Dex with 9.01% usage according to Smogon Mar 2026 - May 2026 data.

What beats Diancie-Mega in Gen 9 National Dex?

The best counter for Diancie-Mega in Gen 9 National Dex is Scizor-Mega with a 83.4% win rate when they meet. Based on Smogon's Mar 2026 - May 2026 usage data, the top Pokémon that beat Diancie-Mega include Scizor-Mega, Ogerpon-Wellspring, Ursaluna, Zamazenta, Clodsire.

What is the best counter for Diancie-Mega in Gen 9 National Dex?

Scizor-Mega is the best counter for Diancie-Mega in Gen 9 National Dex, KOing or forcing it out in 83.4% of their encounters.

Diancie-Mega counters

Gen 9 National Dex · Sorted by reliability score · Smogon · Mar 2026 - May 2026

#0719 Diancie-Mega

RockFairy

USAGE 9.0% #18

BASE STATS

HP 50

ATK 160

DEF 110

SPA 160

SPD 110

SPE 110

BST700

TYPE MATCHUPS

4×

Steel

2×

WaterGrassGround

½×

NormalFireFlyingBugDark

0×

Dragon

Moves

Moonblast 98.9% Earth Power 74.9% Diamond Storm 72.4% Mystical Fire 57.1% Stealth Rock 33.0% Spikes 11.1% Power Gem 10.9% Endeavor 10.2%

Items

Diancite 100.0%

Common Teammates

Landorus-Therian40.2%

Ogerpon-Wellspring38.9%

Browse Gen 9 National Dex teams using Diancie-Mega →

Teams using Scizor-Mega 83% Teams using Ogerpon-Wellspring 83% Teams using Ursaluna 77% Teams using Zamazenta 75% Teams using Clodsire 75% Teams using Venusaur-Mega 72%

Checks & Counters

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

# Checker Encounters Reliability KO Rate

Scizor-Mega

BugSteel OFFENSIVE CHECK

56.773

83.4% dies 6.98%

DAMAGE CALC

252+ Atk Technician Scizor-Mega Bullet Punch vs. 252 HP / 0 Def Diancie-Mega: 444-528 (146 - 173.6%) -- guaranteed OHKO

View Scizor-Mega counters → Teams with Scizor-Mega →

Ogerpon-Wellspring

GrassWater OFFENSIVE CHECK

122.074

82.8% dies 5.73%

DAMAGE CALC

252+ Atk Wellspring Mask Ogerpon-Wellspring Power Whip vs. 252 HP / 0 Def Diancie-Mega: 450-530 (148 - 174.3%) -- guaranteed OHKO

View Ogerpon-Wellspring counters → Teams with Ogerpon-Wellspring →

Ursaluna

GroundNormal OFFENSIVE CHECK

44.35

77.0% dies 8.86%

DAMAGE CALC

252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Diancie-Mega: 420-494 (138.1 - 162.5%) -- guaranteed OHKO

View Ursaluna counters → Teams with Ursaluna →

Zamazenta

Fighting OFFENSIVE CHECK

190.774

75.2% dies 5.39%

DAMAGE CALC

252+ Atk Zamazenta Heavy Slam (120 BP) vs. 252 HP / 0 Def Diancie-Mega: 500-592 (164.4 - 194.7%) -- guaranteed OHKO

View Zamazenta counters → Teams with Zamazenta →

Clodsire

PoisonGround DEFENSIVE COUNTER

35.616

74.5% dies 7.30%

DAMAGE CALC

252+ SpA Diancie-Mega Earth Power vs. 252 HP / 252+ SpD Clodsire: 182-216 (39.2 - 46.5%) -- guaranteed 3HKO after Black Sludge recovery

View Clodsire counters → Teams with Clodsire →

Venusaur-Mega

GrassPoison DEFENSIVE COUNTER

97.943

71.8% dies 7.83%

DAMAGE CALC

0- Atk Diancie-Mega Diamond Storm vs. 252 HP / 0 Def Venusaur-Mega: 123-145 (33.7 - 39.8%) -- guaranteed 3HKO

View Venusaur-Mega counters → Teams with Venusaur-Mega →

Chansey

Normal DEFENSIVE COUNTER

25.855

68.7% dies 9.12%

DAMAGE CALC

0- Atk Diancie-Mega Diamond Storm vs. 252 HP / 0 Def Eviolite Chansey: 498-586 (70.7 - 83.2%) -- guaranteed 2HKO

View Chansey counters → Teams with Chansey →

Lopunny-Mega

NormalFighting OFFENSIVE CHECK

48.22

63.5% dies 9.76%

DAMAGE CALC

252+ Atk Lopunny-Mega Close Combat vs. 252 HP / 0 Def Diancie-Mega: 205-243 (67.4 - 79.9%) -- guaranteed 2HKO

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

Gholdengo

SteelGhost OFFENSIVE CHECK

257.302

62.5% dies 5.18%

DAMAGE CALC

252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Diancie-Mega: 592-700 (194.7 - 230.2%) -- guaranteed OHKO

View Gholdengo counters → Teams with Gholdengo →

Iron Valiant

FairyFighting OFFENSIVE CHECK

93.07

61.7% dies 8.64%

DAMAGE CALC

0- Atk Iron Valiant Close Combat vs. 252 HP / 0 Def Diancie-Mega: 135-159 (44.4 - 52.3%) -- 14.8% chance to 2HKO

View Iron Valiant counters → Teams with Iron Valiant →

Tapu Lele

PsychicFairy OFFENSIVE CHECK

87.823

60.9% dies 8.84%

DAMAGE CALCPsychic Terrain

252+ SpA Tapu Lele Future Sight vs. 252 HP / 252+ SpD Diancie-Mega in Psychic Terrain: 189-223 (62.1 - 73.3%) -- guaranteed 2HKO

View Tapu Lele counters → Teams with Tapu Lele →

Excadrill

GroundSteel OFFENSIVE CHECK

20.893

60.7% dies 10.69%

DAMAGE CALC

252+ Atk Excadrill Iron Head vs. 252 HP / 0 Def Diancie-Mega: 544-648 (178.9 - 213.1%) -- guaranteed OHKO

View Excadrill counters → Teams with Excadrill →

Rillaboom

Grass OFFENSIVE CHECK

24.047

60.4% dies 9.97%

DAMAGE CALCGrassy Terrain

252+ Atk Choice Band Rillaboom Wood Hammer vs. 252 HP / 0 Def Diancie-Mega in Grassy Terrain: 750-884 (246.7 - 290.7%) -- guaranteed OHKO

View Rillaboom counters → Teams with Rillaboom →

Ferrothorn

GrassSteel DEFENSIVE COUNTER

22.765

59.5% dies 10.29%

DAMAGE CALC

252+ SpA Diancie-Mega Mystical Fire vs. 252 HP / 252+ SpD Ferrothorn: 272-324 (77.2 - 92%) -- guaranteed 2HKO after Leftovers recovery

View Ferrothorn counters → Teams with Ferrothorn →

Ting-Lu

DarkGround DEFENSIVE COUNTER

77.326

57.3% dies 9.66%

DAMAGE CALC

252+ SpA Diancie-Mega Moonblast vs. 252 HP / 252+ SpD Vessel of Ruin Ting-Lu: 248-294 (48.2 - 57.1%) -- 44.1% chance to 2HKO after Leftovers recovery

View Ting-Lu counters → Teams with Ting-Lu →

Gliscor

GroundFlying DEFENSIVE COUNTER

236.939

57.2% dies 5.45%

DAMAGE CALC

252+ SpA Diancie-Mega Moonblast vs. 252 HP / 252+ SpD Gliscor: 172-204 (48.5 - 57.6%) -- 94.5% chance to 2HKO

View Gliscor counters → Teams with Gliscor →

Urshifu-Rapid-Strike

FightingWater OFFENSIVE CHECK

62.815

55.7% dies 8.63%

DAMAGE CALC

252+ Atk Urshifu-Rapid-Strike Surging Strikes (3 hits) vs. 252 HP / 0 Def Diancie-Mega on a critical hit: 384-456 (126.3 - 150%) -- guaranteed OHKO

View Urshifu-Rapid-Strike counters → Teams with Urshifu-Rapid-Strike →

Iron Treads

GroundSteel DEFENSIVE COUNTER

118.616

55.6% dies 7.77%

DAMAGE CALC

252+ SpA Diancie-Mega Earth Power vs. 252 HP / 252+ SpD Iron Treads: 226-268 (58.8 - 69.7%) -- guaranteed 2HKO after Leftovers recovery

View Iron Treads counters → Teams with Iron Treads →

Dragonite

DragonFlying SOFT CHECK

106.313

54.9% dies 8.31%

DAMAGE CALC

252+ Atk Dragonite Earthquake vs. 252 HP / 0 Def Diancie-Mega: 226-268 (74.3 - 88.1%) -- guaranteed 2HKO

View Dragonite counters → Teams with Dragonite →

Melmetal

Steel SOFT CHECK

112.661

52.7% dies 8.06%

DAMAGE CALC

252+ Atk Punching Glove Iron Fist Melmetal Double Iron Bash (2 hits) vs. 252 HP / 0 Def Diancie-Mega: 1128-1328 (371 - 436.8%) -- guaranteed OHKO

View Melmetal counters → Teams with Melmetal →

Terapagos

Normal SOFT CHECK

128.521

52.3% dies 7.56%

DAMAGE CALC

0- SpA Terapagos Earth Power vs. 252 HP / 252+ SpD Diancie-Mega: 56-68 (18.4 - 22.3%) -- possible 5HKO

View Terapagos counters → Teams with Terapagos →

Tapu Koko

ElectricFairy SOFT CHECK

22.742

51.4% dies 10.48%

DAMAGE CALCElectric Terrain

252+ SpA Choice Specs Tapu Koko Thunderbolt vs. 252 HP / 252+ SpD Diancie-Mega in Electric Terrain: 171-202 (56.2 - 66.4%) -- guaranteed 2HKO

View Tapu Koko counters → Teams with Tapu Koko →

Landorus-Therian

GroundFlying SOFT CHECK

215.91

51.0% dies 5.80%

DAMAGE CALC

252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Diancie-Mega: 360-426 (118.4 - 140.1%) -- guaranteed OHKO

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

Kingambit

DarkSteel SOFT CHECK

133.301

50.2% dies 7.43%

DAMAGE CALC

252+ Atk Kingambit Iron Head vs. 252 HP / 0 Def Diancie-Mega: 544-648 (178.9 - 213.1%) -- guaranteed OHKO

View Kingambit counters → Teams with Kingambit →

Keldeo

WaterFighting SOFT CHECK

56.25

49.7% dies 9.33%

DAMAGE CALC

252+ SpA Keldeo Hydro Pump vs. 252 HP / 252+ SpD Diancie-Mega: 266-314 (87.5 - 103.2%) -- 18.8% chance to OHKO

View Keldeo counters → Teams with Keldeo →

Diancie-Mega

RockFairy SOFT CHECK

42.5

48.0% dies 10.82%

DAMAGE CALC

252+ SpA Diancie-Mega Earth Power vs. 252 HP / 252+ SpD Diancie-Mega: 170-202 (55.9 - 66.4%) -- guaranteed 2HKO

View Diancie-Mega counters → Teams with Diancie-Mega →

Great Tusk

GroundFighting SOFT CHECK

123.696

47.5% dies 7.63%

DAMAGE CALC

252+ Atk Great Tusk Headlong Rush vs. 252 HP / 0 Def Diancie-Mega: 402-474 (132.2 - 155.9%) -- guaranteed OHKO

View Great Tusk counters → Teams with Great Tusk →

Slowbro

WaterPsychic SOFT CHECK

47.832

38.3% dies 9.93%

DAMAGE CALC

252+ SpA Slowbro Scald vs. 252 HP / 252+ SpD Diancie-Mega: 162-192 (53.2 - 63.1%) -- guaranteed 2HKO

View Slowbro counters → Teams with Slowbro →

Raging Bolt

ElectricDragon SOFT CHECK

116.09

34.5% dies 7.55%

DAMAGE CALC

252+ SpA Choice Specs Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Diancie-Mega: 169-201 (55.5 - 66.1%) -- guaranteed 2HKO

View Raging Bolt counters → Teams with Raging Bolt →

Toxapex

PoisonWater SOFT CHECK

98.281

33.9% dies 8.21%

DAMAGE CALC

252+ SpA Toxapex Scald vs. 252 HP / 252+ SpD Diancie-Mega: 114-134 (37.5 - 44%) -- guaranteed 3HKO

View Toxapex counters → Teams with Toxapex →

Ranked #18 with 9.01% usage. Sorted by reliability score.