Is Shaymin-Sky viable in Gen 9 National Dex Ubers?

Shaymin-Sky is ranked #27 in Gen 9 National Dex Ubers with 5.17% usage according to Smogon Jul 2026 - Sep 2026 data.

What beats Shaymin-Sky in Gen 9 National Dex Ubers?

Yveltal has the strongest conservative score in this observed Jul 2026 - Sep 2026 sample. The target was knocked out or switched out in 81.9% of 75.60922559158817 relevant encounters. Standard error is 4.4 points. Sets and switch conditions can change the result.

How are Shaymin-Sky 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 Shaymin-Sky was knocked out or switched out. This is not a set-specific battle guarantee.

Shaymin-Sky counters

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

#0492 Shaymin-Sky

GrassFlying

USAGE 5.2% #27

ABILITYSerene Grace

BASE STATS

HP 100

ATK 103

DEF 75

SPA 120

SPD 75

SPE 127

BST600

TYPE MATCHUPS

4×

Ice

2×

FirePoisonFlyingRock

½×

WaterFighting

¼×

Grass

0×

Ground

Moves

Air Slash 100.0% Seed Flare 99.2% Earth Power 98.2% Healing Wish 91.0% Ominous Wind 3.8% Substitute 1.5% Dazzling Gleam 1.4% Leech Seed 1.3%

Items

Groundium Z 86.4% Focus Sash 4.4% Choice Scarf 4.3% Choice Specs 1.6% Leftovers 1.2% Normalium Z 0.5% King's Rock 0.5% Heavy-Duty Boots 0.4%

Abilities

Serene Grace100.0%

Tera Types

Ghost 5.2% Flying 4.0% Steel 1.3% Grass 1.3% Water 0.5% Fairy 0.4% Fire 0.2%

Common Teammates

Leading observed checks

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

Team core to explore

Shaymin-Sky + Groudon-Primal 94.3% 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

Yveltal

DarkFlying OFFENSIVE CHECK View matchup

75.609

64.2

81.9% Standard error 4.43 points

DAMAGE CALC

252+ SpA Life Orb Yveltal Oblivion Wing vs. 252 HP / 252+ SpD Shaymin-Sky: 328-385 (81.1 - 95.2%) -- guaranteed 2HKO

View Yveltal counters → Teams with Yveltal →

Eternatus

PoisonDragon OFFENSIVE CHECK View matchup

22.871

42.3

77.3% Standard error 8.76 points

DAMAGE CALC

+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Shaymin-Sky: 404-476 (100 - 117.8%) -- guaranteed OHKO

View Eternatus counters → Teams with Eternatus →

Zacian-Crowned

FairySteel OFFENSIVE CHECK View matchup

68.355

41.0

64.2% Standard error 5.80 points

DAMAGE CALC

+1 252+ Atk Zacian-Crowned Play Rough vs. 252 HP / 0 Def Shaymin-Sky: 342-403 (84.6 - 99.7%) -- guaranteed 2HKO

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

Ho-Oh

FireFlying SOFT CHECK View matchup

140.227

34.0

50.9% Standard error 4.22 points

DAMAGE CALC

252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Shaymin-Sky: 546-644 (135.1 - 159.4%) -- guaranteed OHKO

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

Necrozma-Dusk-Mane

PsychicSteel OFFENSIVE CHECK View matchup

20.369

26.2

67.7% Standard error 10.36 points

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Stone Edge vs. 252 HP / 0 Def Shaymin-Sky: 244-288 (60.3 - 71.2%) -- guaranteed 2HKO

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

Arceus-Ground

Ground SOFT CHECK View matchup

25.966

4.0

42.8% Standard error 9.71 points

DAMAGE CALC

252+ SpA Arceus-Ground Ice Beam vs. 252 HP / 252+ SpD Shaymin-Sky: 356-420 (88.1 - 103.9%) -- 25% chance to OHKO

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

Groudon-Primal

GroundFire SOFT CHECK View matchup

62.089

3.1

25.1% Standard error 5.50 points

DAMAGE CALCHarsh Sunshine

252+ Atk Groudon-Primal Heat Crash (120 BP) vs. 252 HP / 0 Def Shaymin-Sky in Harsh Sunshine: 1050-1236 (259.9 - 305.9%) -- guaranteed OHKO

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

Zygarde

DragonGround SOFT CHECK View matchup

96.35

2.2

17.7% Standard error 3.89 points

DAMAGE CALC

252+ Atk Zygarde Thousand Arrows vs. 252 HP / 0 Def Shaymin-Sky: 171-202 (42.3 - 50%) -- 0.4% chance to 2HKO

View Zygarde counters → Teams with Zygarde →

Ferrothorn

GrassSteel SOFT CHECK View matchup

52.612

-0.3

22.9% Standard error 5.79 points

DAMAGE CALC

252+ Atk Ferrothorn Gyro Ball (53 BP) vs. 252 HP / 0 Def Shaymin-Sky: 97-115 (24 - 28.4%) -- 96.9% chance to 4HKO

View Ferrothorn counters →

Arceus-Dark

Dark SOFT CHECK View matchup

20.21

-14.4

23.1% Standard error 9.37 points

DAMAGE CALC

252+ SpA Arceus-Dark Ice Beam vs. 252 HP / 252+ SpD Shaymin-Sky: 356-420 (88.1 - 103.9%) -- 25% chance to OHKO

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

Ranked #27 with 5.17% usage. Sorted by conservative score.