Is Chi-Yu viable in Gen 9 National Dex Ubers?

Chi-Yu is ranked #34 in Gen 9 National Dex Ubers with 3.34% usage according to Smogon May 2026 - Jul 2026 data.

What beats Chi-Yu in Gen 9 National Dex Ubers?

Zacian-Crowned has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 47.8% of 52.806154392606345 relevant encounters. Standard error is 9.5 points. Sets and switch conditions can change the result.

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

Chi-Yu counters

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

#1004 Chi-Yu

DarkFire

USAGE 3.3% #34

BASE STATS

HP 55

ATK 80

DEF 80

SPA 135

SPD 120

SPE 100

BST570

TYPE MATCHUPS

2×

WaterFightingGroundRock

½×

FireGrassIceGhostDarkSteel

0×

Psychic

Moves

Dark Pulse 100.0% Fire Blast 81.1% Nasty Plot 74.0% Taunt 70.0% Flamethrower 29.6% Overheat 24.8% Psychic 5.7% Lava Plume 3.3%

Items

Darkinium Z 69.1% Choice Scarf 18.3% Choice Specs 6.4% Focus Sash 3.2% Black Glasses 1.1% Life Orb 0.7% Salac Berry 0.6% Firium Z 0.3%

Tera Types

Fire 20.5% Dark 3.5% Ghost 2.1% Grass 1.6% Psychic 1.3% Electric 0.5% Flying 0.4%

Common Teammates

Browse Gen 9 National Dex Ubers teams using Chi-Yu →

Explore Chi-Yu + Zacian-Crowned teams 10 score Explore Chi-Yu + Yveltal teams 1 score Explore Chi-Yu + Groudon-Primal teams -5 score Explore Chi-Yu + Ho-Oh teams -6 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

Chi-Yu + Zacian-Crowned 65.7% 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

Zacian-Crowned

FairySteel SOFT CHECK View matchup

52.806

10.0

47.8% Standard error 9.45 points

DAMAGE CALC

+1 252+ Atk Zacian-Crowned Close Combat vs. 252 HP / 0 Def Chi-Yu: 576-678 (183.4 - 215.9%) -- guaranteed OHKO

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

Yveltal

DarkFlying SOFT CHECK View matchup

89.455

0.9

34.1% Standard error 8.31 points

DAMAGE CALC

252+ SpA Life Orb Yveltal Oblivion Wing vs. 252 HP / 252+ SpD Chi-Yu: 121-142 (38.5 - 45.2%) -- guaranteed 3HKO

View Yveltal counters → Teams with Yveltal →

Groudon-Primal

GroundFire SOFT CHECK View matchup

87.007

-5.2

27.9% Standard error 8.28 points

DAMAGE CALCHarsh Sunshine

252+ Atk Groudon-Primal Precipice Blades vs. 252 HP / 0 Def Chi-Yu: 662-782 (210.8 - 249%) -- guaranteed OHKO

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

Ho-Oh

FireFlying SOFT CHECK View matchup

80.576

-6.4

27.4% Standard error 8.47 points

DAMAGE CALC

252+ Atk Ho-Oh Earthquake vs. 252 HP / 0 Def Chi-Yu: 288-340 (91.7 - 108.2%) -- 50% chance to OHKO

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

Ranked #34 with 3.34% usage. Sorted by conservative score.