Is Necrozma-Dusk-Mane viable in Gen 9 National Dex Ubers?

Necrozma-Dusk-Mane is ranked #6 in Gen 9 National Dex Ubers with 26.55% usage according to Smogon Jul 2026 - Sep 2026 data.

What beats Necrozma-Dusk-Mane in Gen 9 National Dex Ubers?

Arceus-Dark has the strongest conservative score in this observed Jul 2026 - Sep 2026 sample. The target was knocked out or switched out in 77.3% of 257.6619922694591 relevant encounters. Standard error is 2.6 points. Sets and switch conditions can change the result.

How are Necrozma-Dusk-Mane matchup checks ranked in Gen 9 National Dex Ubers?

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

Necrozma-Dusk-Mane counters

Gen 9 National Dex Ubers · Smogon source period Jul 2026 - Sep 2026

#0800 Necrozma-Dusk-Mane

PsychicSteel

USAGE 26.5% #6

ABILITYPrism Armor

BASE STATS

HP 97

ATK 157

DEF 127

SPA 113

SPD 109

SPE 77

BST680

TYPE MATCHUPS

2×

FireGroundGhostDark

½×

NormalGrassIceFlyingRockDragonSteelFairy

¼×

Psychic

0×

Poison

Moves

Photon Geyser 77.0% Dragon Dance 66.1% Earthquake 65.8% Sunsteel Strike 42.6% Stone Edge 22.5% Morning Sun 21.2% Stealth Rock 19.0% Outrage 16.7%

Items

Ultranecrozium Z 66.4% Solganium Z 11.6% Rocky Helmet 8.5% Covert Cloak 5.4% Weakness Policy 3.2% Leftovers 3.1% Life Orb 0.8% Heavy-Duty Boots 0.3%

Abilities

Prism Armor100.0%

Tera Types

Normal 5.7% Flying 3.8% Water 2.6% Psychic 2.4% Poison 1.9% Ground 1.7% Dark 1.3%

Common Teammates

Browse Gen 9 National Dex Ubers teams using Necrozma-Dusk-Mane →

Explore Necrozma-Dusk-Mane + Arceus-Dark teams 67 score Explore Necrozma-Dusk-Mane + Yveltal teams 62 score Explore Necrozma-Dusk-Mane + Marshadow teams 55 score Explore Necrozma-Dusk-Mane + Lunala teams 46 score Explore Necrozma-Dusk-Mane + Kingambit teams 45 score

Leading observed checks

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

Team core to explore

Necrozma-Dusk-Mane + Groudon-Primal 56.3% 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

Arceus-Dark

Dark DEFENSIVE CHECK View matchup

257.662

66.8

77.3% Standard error 2.61 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Arceus-Dark: 123-145 (27.7 - 32.6%) -- guaranteed 4HKO

View Arceus-Dark counters → Teams with Arceus-Dark →

Yveltal

DarkFlying OFFENSIVE CHECK View matchup

556.468

61.8

69.6% Standard error 1.95 points

DAMAGE CALC

0- Atk Life Orb Dark Aura Yveltal Foul Play vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 287-339 (72.1 - 85.1%) -- guaranteed 2HKO

View Yveltal counters → Teams with Yveltal →

Marshadow

FightingGhost OFFENSIVE CHECK View matchup

245.817

54.9

66.9% Standard error 3.00 points

DAMAGE CALC

252+ Atk Marshadow Poltergeist vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 235-279 (59 - 70.1%) -- guaranteed 2HKO

View Marshadow counters → Teams with Marshadow →

Chien-Pao

DarkIce OFFENSIVE CHECK View matchup

98.195

50.5

69.1% Standard error 4.66 points

DAMAGE CALC

252+ Atk Sword of Ruin Chien-Pao Crunch vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 222-262 (55.7 - 65.8%) -- guaranteed 2HKO

View Chien-Pao counters →

Lunala

PsychicGhost OFFENSIVE CHECK View matchup

109.18

45.7

64.1% Standard error 4.59 points

DAMAGE CALC

252+ SpA Lunala Moongeist Beam vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 190-225 (47.7 - 56.5%) -- 85.9% chance to 2HKO

View Lunala counters → Teams with Lunala →

Kingambit

DarkSteel DEFENSIVE CHECK View matchup

76.978

44.8

66.4% Standard error 5.39 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 0 Def Kingambit: 164-194 (40.5 - 48%) -- guaranteed 3HKO

View Kingambit counters → Teams with Kingambit →

Arceus

Normal DEFENSIVE CHECK View matchup

198.479

41.4

55.5% Standard error 3.53 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Arceus: 123-145 (27.7 - 32.6%) -- guaranteed 4HKO

View Arceus counters → Teams with Arceus →

Calyrex-Ice

PsychicIce DEFENSIVE CHECK View matchup

48.231

39.8

66.9% Standard error 6.78 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Sunsteel Strike vs. 252 HP / 0 Def Calyrex-Ice: 204-240 (50.4 - 59.4%) -- guaranteed 2HKO

View Calyrex-Ice counters →

Necrozma-Dusk-Mane

PsychicSteel SOFT CHECK View matchup

313.218

36.0

47.3% Standard error 2.82 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 118-139 (29.6 - 34.9%) -- 13.7% chance to 3HKO

View Necrozma-Dusk-Mane counters → Teams with Necrozma-Dusk-Mane →

Zygarde

DragonGround SOFT CHECK View matchup

324.516

35.6

46.7% Standard error 2.77 points

DAMAGE CALC

252+ Atk Zygarde Thousand Arrows vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 163-195 (40.9 - 48.9%) -- guaranteed 3HKO

View Zygarde counters → Teams with Zygarde →

Ferrothorn

GrassSteel DEFENSIVE CHECK View matchup

70.443

35.5

59.0% Standard error 5.86 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 0 Def Ferrothorn: 76-90 (21.5 - 25.5%) -- possible 5HKO

View Ferrothorn counters →

Zacian-Crowned

FairySteel SOFT CHECK View matchup

478.63

33.5

42.6% Standard error 2.26 points

DAMAGE CALC

+1 252+ Atk Zacian-Crowned Close Combat vs. 252 HP / 0 Def Necrozma-Dusk-Mane: 195-230 (48.9 - 57.7%) -- 96.1% chance to 2HKO

View Zacian-Crowned counters → Teams with Zacian-Crowned →

Melmetal

Steel DEFENSIVE CHECK View matchup

56.328

33.0

59.2% Standard error 6.55 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Earthquake vs. 252 HP / 0 Def Melmetal: 142-168 (29.9 - 35.4%) -- 25% chance to 3HKO

View Melmetal counters →

Groudon-Primal

GroundFire SOFT CHECK View matchup

549.6

31.9

40.3% Standard error 2.09 points

DAMAGE CALCHarsh Sunshine

252+ Atk Groudon-Primal Precipice Blades vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 337-397 (84.6 - 99.7%) -- guaranteed 2HKO

View Groudon-Primal counters → Teams with Groudon-Primal →

Mewtwo

Psychic OFFENSIVE CHECK View matchup

41.59

31.7

61.8% Standard error 7.53 points

DAMAGE CALC

252+ SpA Life Orb Mewtwo Earth Power vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 164-193 (41.2 - 48.4%) -- guaranteed 3HKO

View Mewtwo counters →

Giratina-Origin

GhostDragon SOFT CHECK View matchup

196.486

31.6

45.8% Standard error 3.55 points

DAMAGE CALC

0- Atk Griseous Core Giratina-Origin Poltergeist vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 181-216 (45.4 - 54.2%) -- 46.9% chance to 2HKO

View Giratina-Origin counters → Teams with Giratina-Origin →

Kyogre-Primal

Water SOFT CHECK View matchup

194.477

30.9

45.2% Standard error 3.57 points

DAMAGE CALCHeavy Rain

252+ SpA Kyogre-Primal Water Spout (150 BP) vs. 252 HP / 252+ SpD Necrozma-Dusk-Mane in Heavy Rain: 351-414 (88.1 - 104%) -- 25% chance to OHKO

View Kyogre-Primal counters →

Dondozo

Water SOFT CHECK View matchup

122.506

29.4

47.4% Standard error 4.51 points

DAMAGE CALC

252+ Atk Dondozo Wave Crash vs. 252 HP / 0 Def Necrozma-Dusk-Mane: 147-174 (36.9 - 43.7%) -- guaranteed 3HKO

View Dondozo counters → Teams with Dondozo →

Arceus-Ground

Ground SOFT CHECK View matchup

181.074

28.6

43.4% Standard error 3.68 points

DAMAGE CALC

252+ SpA Earth Plate Arceus-Ground Judgment vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 207-244 (52 - 61.3%) -- guaranteed 2HKO

View Arceus-Ground counters → Teams with Arceus-Ground →

Ditto

Normal SOFT CHECK View matchup

114.476

28.0

46.7% Standard error 4.66 points

DAMAGE CALC

Ditto vs. Necrozma-Dusk-Mane: 0-0 (0 - 0%)

View Ditto counters → Teams with Ditto →

Eternatus

PoisonDragon SOFT CHECK View matchup

335.978

20.7

30.7% Standard error 2.52 points

DAMAGE CALC

252+ SpA Eternatus Fire Blast vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 145-172 (36.4 - 43.2%) -- guaranteed 3HKO

View Eternatus counters → Teams with Eternatus →

Mewtwo-Mega-Y

Psychic SOFT CHECK View matchup

80.439

19.9

41.9% Standard error 5.50 points

DAMAGE CALC

252+ SpA Mewtwo-Mega-Y Fire Blast vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 183-216 (45.9 - 54.2%) -- 50% chance to 2HKO

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

Ho-Oh

FireFlying SOFT CHECK View matchup

415.578

17.6

26.2% Standard error 2.16 points

DAMAGE CALC

252+ Atk Ho-Oh Sacred Fire vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 220-261 (55.2 - 65.5%) -- guaranteed 2HKO

View Ho-Oh counters → Teams with Ho-Oh →

Salamence-Mega

DragonFlying SOFT CHECK View matchup

81.371

15.5

36.9% Standard error 5.35 points

DAMAGE CALC

252+ Atk Salamence-Mega Earthquake vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 159-187 (39.9 - 46.9%) -- guaranteed 3HKO

View Salamence-Mega counters →

Deoxys-Attack

Psychic SOFT CHECK View matchup

64.977

14.2

38.3% Standard error 6.03 points

DAMAGE CALC

252+ SpA Life Orb Deoxys-Attack Shadow Ball vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 164-193 (41.2 - 48.4%) -- guaranteed 3HKO

View Deoxys-Attack counters → Teams with Deoxys-Attack →

Arceus-Fairy

Fairy SOFT CHECK View matchup

207.612

10.7

22.3% Standard error 2.89 points

DAMAGE CALC

252+ SpA Arceus-Fairy Earth Power vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 103-123 (25.8 - 30.9%) -- guaranteed 4HKO

View Arceus-Fairy counters → Teams with Arceus-Fairy →

Garganacl

Rock SOFT CHECK View matchup

118.647

9.5

25.5% Standard error 4.00 points

DAMAGE CALC

252+ Atk Garganacl Earthquake vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 123-145 (30.9 - 36.4%) -- 63.9% chance to 3HKO

View Garganacl counters → Teams with Garganacl →

Lugia

PsychicFlying SOFT CHECK View matchup

22.52

8.6

50.7% Standard error 10.54 points

DAMAGE CALC

252+ SpA Lugia Aeroblast vs. 252 HP / 252+ SpD Necrozma-Dusk-Mane: 47-56 (11.8 - 14%) -- possible 8HKO

View Lugia counters →

Giratina

GhostDragon SOFT CHECK View matchup

30.849

7.0

42.6% Standard error 8.90 points

DAMAGE CALC

0- SpA Giratina Hex (65 BP) vs. 252 HP / 252+ SpD Prism Armor Necrozma-Dusk-Mane: 64-78 (16 - 19.5%) -- possible 6HKO

View Giratina counters → Teams with Giratina →

Alomomola

Water SOFT CHECK View matchup

153.79

1.8

12.4% Standard error 2.66 points

DAMAGE CALC

252+ Atk Alomomola Knock Off vs. 252 HP / 0 Def Prism Armor Necrozma-Dusk-Mane: 67-79 (16.8 - 19.8%) -- guaranteed 6HKO

View Alomomola counters →

Ranked #6 with 26.55% usage. Sorted by conservative score.