Is Arceus-Water viable in Gen 9 Ubers?

Arceus-Water is ranked #17 in Gen 9 Ubers with 9.30% usage according to Smogon May 2026 - Jul 2026 data.

What beats Arceus-Water in Gen 9 Ubers?

Eternatus has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 69.7% of 293.48570142753306 relevant encounters. Standard error is 4.6 points. Sets and switch conditions can change the result.

How are Arceus-Water matchup checks ranked in Gen 9 Ubers?

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

Arceus-Water counters

Gen 9 Ubers · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0493 Arceus-Water

Water

USAGE 9.3% #17

BASE STATS

HP 120

ATK 120

DEF 120

SPA 120

SPD 120

SPE 120

BST720

TYPE MATCHUPS

2×

ElectricGrass

½×

FireWaterIceSteel

Moves

Judgment 96.3% Recover 91.7% Calm Mind 65.4% Will-O-Wisp 43.2% Thunder Wave 28.6% Stealth Rock 16.6% Roar 9.1% Iron Defense 8.1%

Items

Splash Plate 100.0%

Tera Types

Fairy 57.6% Poison 27.0% Ghost 5.3% Steel 4.9% Water 1.8% Dark 1.4% Dragon 0.9% Ground 0.5%

Common Teammates

Necrozma-Dusk-Mane33.0%

Landorus-Therian27.5%

Giratina-Origin26.7%

Browse Gen 9 Ubers teams using Arceus-Water →

Explore Arceus-Water + Eternatus teams 51 score Explore Arceus-Water + Kyogre teams 51 score Explore Arceus-Water + Blissey teams 49 score Explore Arceus-Water + Arceus-Electric 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

Arceus-Water + Koraidon 89.5% 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

Eternatus

PoisonDragon OFFENSIVE CHECK View matchup

293.486

51.3

69.7% Standard error 4.60 points

DAMAGE CALC

+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Arceus-Water: 148-175 (33.3 - 39.4%) -- guaranteed 3HKO

View Eternatus counters → Teams with Eternatus →

Kyogre

Water DEFENSIVE CHECK View matchup

913.326

50.9

61.9% Standard error 2.76 points

DAMAGE CALCRain

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Kyogre in Rain: 87-103 (21.5 - 25.4%) -- 0.6% chance to 4HKO

View Kyogre counters → Teams with Kyogre →

Garganacl

Rock DEFENSIVE CHECK View matchup

22.414

49.2

81.8% Standard error 8.15 points

DAMAGE CALC

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Garganacl: 314-372 (77.7 - 92%) -- guaranteed 2HKO after Leftovers recovery

View Garganacl counters →

Blissey

Normal DEFENSIVE CHECK View matchup

173.639

48.6

71.9% Standard error 5.84 points

DAMAGE CALC

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Blissey: 118-141 (16.5 - 19.7%) -- possible 6HKO

View Blissey counters → Teams with Blissey →

Arceus-Electric

Electric DEFENSIVE CHECK View matchup

85.578

45.2

76.5% Standard error 7.81 points

DAMAGE CALC

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Arceus-Electric: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO

View Arceus-Electric counters → Teams with Arceus-Electric →

Clodsire

PoisonGround DEFENSIVE CHECK View matchup

154.429

42.6

68.2% Standard error 6.40 points

Zacian-Crowned

FairySteel OFFENSIVE CHECK View matchup

355.154

42.3

60.2% Standard error 4.48 points

DAMAGE CALC

+1 252+ Atk Zacian-Crowned Wild Charge vs. 252 HP / 0 Def Arceus-Water: 306-362 (68.9 - 81.5%) -- guaranteed 2HKO

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

Koraidon

FightingDragon SOFT CHECK View matchup

1,165.075

38.9

49.0% Standard error 2.52 points

DAMAGE CALCSun

252+ Atk Orichalcum Pulse Koraidon Low Kick (120 BP) vs. 252 HP / 0 Def Arceus-Water: 253-298 (56.9 - 67.1%) -- guaranteed 2HKO

View Koraidon counters → Teams with Koraidon →

Lunala

PsychicGhost OFFENSIVE CHECK View matchup

304.486

37.2

56.8% Standard error 4.89 points

DAMAGE CALC

+1 252+ SpA Lunala Meteor Beam vs. 252 HP / 252+ SpD Arceus-Water: 142-168 (31.9 - 37.8%) -- 93.9% chance to 3HKO

View Lunala counters → Teams with Lunala →

Terapagos

Normal DEFENSIVE CHECK View matchup

59.431

29.8

64.1% Standard error 8.57 points

DAMAGE CALC

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Terapagos: 163-193 (42.4 - 50.2%) -- 0.4% chance to 2HKO

View Terapagos counters → Teams with Terapagos →

Ursaluna

GroundNormal OFFENSIVE CHECK View matchup

61.566

25.8

60.6% Standard error 8.69 points

DAMAGE CALC

252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Arceus-Water: 195-229 (43.9 - 51.5%) -- 8.6% chance to 2HKO

View Ursaluna counters →

Flutter Mane

GhostFairy OFFENSIVE CHECK View matchup

23.343

23.0

63.0% Standard error 9.99 points

DAMAGE CALC

252+ SpA Choice Specs Flutter Mane Thunderbolt vs. 252 HP / 252+ SpD Arceus-Water: 212-250 (47.7 - 56.3%) -- 85.2% chance to 2HKO

View Flutter Mane counters →

Necrozma-Dusk-Mane

PsychicSteel SOFT CHECK View matchup

393.413

22.5

39.5% Standard error 4.25 points

DAMAGE CALC

252+ SpA Necrozma-Dusk-Mane Photon Geyser vs. 252 HP / 252+ SpD Arceus-Water: 103-123 (23.1 - 27.7%) -- 73.7% chance to 4HKO

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

Arceus

Normal SOFT CHECK View matchup

236.536

21.7

43.9% Standard error 5.57 points

DAMAGE CALC

252+ Atk Silk Scarf Arceus Double-Edge vs. 252 HP / 0 Def Arceus-Water: 210-247 (47.2 - 55.6%) -- 76.2% chance to 2HKO

View Arceus counters → Teams with Arceus →

Arceus-Water

Water SOFT CHECK View matchup

176.524

21.1

47.0% Standard error 6.48 points

DAMAGE CALC

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Arceus-Water: 64-76 (14.4 - 17.1%) -- possible 6HKO

View Arceus-Water counters → Teams with Arceus-Water →

Arceus-Fairy

Fairy SOFT CHECK View matchup

200.558

20.2

44.0% Standard error 5.96 points

DAMAGE CALC

252+ SpA Pixie Plate Arceus-Fairy Judgment vs. 252 HP / 252+ SpD Arceus-Water: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO

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

Arceus-Ghost

Ghost DEFENSIVE CHECK View matchup

20.667

19.0

61.8% Standard error 10.69 points

DAMAGE CALC

252+ SpA Splash Plate Arceus-Water Judgment vs. 252 HP / 252+ SpD Arceus-Ghost: 129-153 (29 - 34.4%) -- 3.1% chance to 3HKO

View Arceus-Ghost counters → Teams with Arceus-Ghost →

Giratina-Origin

GhostDragon SOFT CHECK View matchup

163.171

15.6

42.0% Standard error 6.62 points

DAMAGE CALC

252+ Atk Griseous Core Giratina-Origin Poltergeist vs. 252 HP / 0 Def Arceus-Water: 192-226 (43.2 - 50.9%) -- 3.1% chance to 2HKO

View Giratina-Origin counters →

Deoxys-Attack

Psychic SOFT CHECK View matchup

58.226

15.3

51.5% Standard error 9.05 points

DAMAGE CALC

252+ SpA Deoxys-Attack Psycho Boost vs. 252 HP / 252+ SpD Arceus-Water: 204-241 (45.9 - 54.2%) -- 54.3% chance to 2HKO

View Deoxys-Attack counters →

Kyurem-Black

DragonIce OFFENSIVE CHECK View matchup

20.793

14.2

57.6% Standard error 10.84 points

DAMAGE CALC

252+ Atk Kyurem-Black Fusion Bolt vs. 252 HP / 0 Def Arceus-Water: 250-296 (56.3 - 66.6%) -- guaranteed 2HKO

View Kyurem-Black counters →

Calyrex-Ice

PsychicIce SOFT CHECK View matchup

254.942

9.9

29.5% Standard error 4.90 points

DAMAGE CALC

252+ Atk Calyrex-Ice Seed Bomb vs. 252 HP / 0 Def Arceus-Water: 196-232 (44.1 - 52.2%) -- 16.8% chance to 2HKO

View Calyrex-Ice counters →

Arceus-Ground

Ground SOFT CHECK View matchup

159.378

5.6

30.4% Standard error 6.22 points

DAMAGE CALC

252+ Atk Earth Plate Arceus-Ground Earthquake vs. 252 HP / 0 Def Arceus-Water: 174-205 (39.1 - 46.1%) -- guaranteed 3HKO

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

Ho-Oh

FireFlying SOFT CHECK View matchup

595.976

5.0

15.1% Standard error 2.51 points

DAMAGE CALC

252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Arceus-Water: 184-217 (41.4 - 48.8%) -- guaranteed 3HKO

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

Hatterene

PsychicFairy SOFT CHECK View matchup

182.55

0.9

21.2% Standard error 5.07 points

DAMAGE CALC

252+ SpA Hatterene Misty Explosion vs. 252 HP / 252+ SpD Arceus-Water: 118-141 (26.5 - 31.7%) -- guaranteed 4HKO

View Hatterene counters → Teams with Hatterene →

Kingambit

DarkSteel SOFT CHECK View matchup

64.963

-3.7

27.7% Standard error 7.85 points

DAMAGE CALC

252+ Atk Black Glasses Kingambit Kowtow Cleave vs. 252 HP / 0 Def Arceus-Water: 160-190 (36 - 42.7%) -- guaranteed 3HKO

View Kingambit counters → Teams with Kingambit →

Grimmsnarl

DarkFairy SOFT CHECK View matchup

23.027

-5.3

34.3% Standard error 9.89 points

DAMAGE CALC

252+ Atk Grimmsnarl Play Rough vs. 252 HP / 0 Def Arceus-Water: 130-154 (29.2 - 34.6%) -- 6.3% chance to 3HKO

View Grimmsnarl counters →

Gliscor

GroundFlying SOFT CHECK View matchup

176.098

-5.6

6.9% Standard error 3.13 points

DAMAGE CALC

252+ Atk Gliscor Earthquake vs. 252 HP / 0 Def Arceus-Water: 124-147 (27.9 - 33.1%) -- guaranteed 4HKO

View Gliscor counters → Teams with Gliscor →

Alomomola

Water SOFT CHECK View matchup

100.422

-7.3

6.0% Standard error 3.31 points

DAMAGE CALC

252+ Atk Alomomola Play Rough vs. 252 HP / 0 Def Arceus-Water: 64-76 (14.4 - 17.1%) -- possible 6HKO

View Alomomola counters →

Groudon

Ground SOFT CHECK View matchup

117.185

-7.5

15.1% Standard error 5.63 points

DAMAGE CALCSun

252+ Atk Groudon Precipice Blades vs. 252 HP / 0 Def Arceus-Water: 204-241 (45.9 - 54.2%) -- 54.3% chance to 2HKO

View Groudon counters → Teams with Groudon →

Landorus-Therian

GroundFlying SOFT CHECK View matchup

105.5

-9.9

9.5% Standard error 4.87 points

DAMAGE CALC

252+ Atk Landorus-Therian Earthquake vs. 252 HP / 0 Def Arceus-Water: 166-196 (37.3 - 44.1%) -- guaranteed 3HKO

View Landorus-Therian counters →

Ranked #17 with 9.30% usage. Sorted by conservative score.