DexDB

No. 1004

Chi-Yu

Ruinous Pokémon

Chi-Yu
Official art
DarkFire
Height
0.4 m 1′04″
Weight
4.9 kg 10.8 lbs
Base stat total
570 Higher than 88% of Pokémon
Introduced
Gen IX Scarlet & Violet
Abilities
Legendary
Pokédex entryViolet
The envy accumulated within curved beads that sparked multiple conflicts has clad itself in fire and become a Pokémon.
See all 2 entries

Base stats

HP55130–162220–314
Atk8090–145148–284
Def8090–145148–284
SpA135139–205247–405
SpD120126–189220–372
Spe100108–167184–328
Total570Higher than 88% of Pokémon
HP55Atk80Def80Spe100SpD120SpA135

Ranges in Pokémon Champions at Lv 50: 0 Stat Points with a −10% Stat Alignment to 32 Stat Points with a +10% one (HP has no alignment).Ranges in the main games at Lv 100: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 3 SpA.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature
Calculate damage →

Type matchups

DarkFireshow which type causes itweaknessresistance

Weak to

2×
Fighting (because of Dark)Ground (because of Fire)Rock (because of Fire)Water (because of Fire)

Resists

½×
Dark (because of Dark)Fire (because of Fire)Ghost (because of Dark)Grass (because of Fire)Ice (because of Fire)Steel (because of Fire)

Immune to

0×
Psychic (because of Dark)
Takes normal damage from 7 types
NormalFlyingPoisonBugElectricDragonFairy

Speed tiers

The faster Pokémon moves first each turn, so knowing who you outspeed decides a lot of battles. These are its Speed values at Lv 50 in Pokémon Champions (base Speed 100); Scarf and Tailwind use the Max+ value.

Max+167Max152No SP120Min108Scarf250Tailwind334

At max Speed, Chi-Yu outspeeds 18 of the 30 most used Pokémon in Champions VGC on Showdown, and ties 2.

  1. 203Mega Garchomp ZModest · 32 SP · #21 on Showdown
  2. 200Mega GengarTimid · 32 SP · #26 on Showdown
  3. 190Mega Raichu YTimid · 23 SP · #13 on Showdown
  4. 189Mega SalamenceTimid · 32 SP · #4 on Showdown
  5. 184WhimsicottTimid · 32 SP · #23 on Showdown
  6. 178Mega MetagrossJolly · 32 SP · #28 on Showdown
  7. 178Mega StaraptorJolly · 32 SP · #29 on Showdown
  8. 172SneaslerAdamant · 32 SP · #2 on Showdown
  9. 169Mega FloetteTimid · 32 SP · #17 on Showdown
  10. 169GarchompJolly · 32 SP · #19 on Showdown
  11. 167Chi-Yu · Max+32 SP, Speed-raising alignment
  12. 167Mega Charizard YTimid · 32 SP · #14 on Showdown
  13. 167Mega GardevoirTimid · 32 SP · #20 on Showdown
  14. 161IndeedeeTimid · 32 SP · #30 on Showdown
  15. 156Hisuian ArcanineJolly · 32 SP · #16 on Showdown
  16. 152Chi-Yu · Max32 SP, neutral alignment
  17. 150ArchaludonTimid · 32 SP · #9 on Showdown
  18. 149GholdengoTimid · 32 SP · #8 on Showdown
  19. 143BasculegionJolly · 32 SP · #6 on Showdown
  20. 128PelipperTimid · 32 SP · #12 on Showdown
  21. 120Chi-Yu · No SP0 SP, neutral alignment
  22. 120VolcaronaBold · 0 SP · #25 on Showdown
  23. 105RillaboomAdamant · 0 SP · #1 on Showdown
  24. 101MiloticCalm · 0 SP · #15 on Showdown
  25. 95SylveonModest · 15 SP · #18 on Showdown
  26. 94Female IndeedeeRelaxed · 0 SP · #7 on Showdown
  27. 90PolitoedCalm · 0 SP · #22 on Showdown
  28. 90SinistchaBold · 0 SP · #24 on Showdown
  29. 85ArmarougeQuiet · 0 SP · #27 on Showdown
  30. 80IncineroarCareful · 0 SP · #3 on Showdown
  31. 80FarigirafBold · 0 SP · #11 on Showdown
  32. 70KingambitAdamant · 0 SP · #5 on Showdown
  33. 60Mega GolisopodAdamant · 0 SP · #10 on Showdown

Smogon · Showdown Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Abilities

Competitive

Smogon · Showdown On Showdown

Sep 2026
Other Showdown formats Scarlet & Violet, with Tera
SV SinglesUberSV DoublesDOUNational DexUber

14.28% of teams · rank #9 · Doubles · 1695+ rating · 196,031 battles · Sep 2026

Most common build

Item
Choice Scarf
Ability
Nature
Timid
EVs
252 SpA / 4 SpD / 252 Spe
Tera Type
Ghost
  1. Heat Wave
  2. Dark Pulse
  3. Snarl
  4. Overheat

Each part is the most used on its own, so not every team runs this exact set.

Usage by rating

  • All players6.71%
  • Rated 1500+8.93%
  • Rated 1695+14.28%
  • Rated 1825+13.59%

Usage by month

Oct 202514.28%

Moves

Items

Abilities

  • 100%

EV spreads

  • Timid 252 SpA / 4 SpD / 252 Spe37.6%
  • Modest 4 HP / 252 SpA / 252 Spe15.4%
  • Modest 252 SpA / 4 SpD / 252 Spe9.7%
  • Timid 252 SpA / 252 Spe6.9%
  • Modest 4 Def / 252 SpA / 252 Spe5.5%

Tera types

  • Ghost33.7%
  • Fire28.2%
  • Water9.9%
  • Dark8.5%

Common teammates

Evolution

Chi-Yu does not evolve.

Moves

Level up 18

1Ember10% chance to burn the target.FireSpec40100%25
1Mean LookPrevents the target from switching out.NormalStatus——5
1SpiteLowers the PP of the target's last move by 4.GhostStatus—100%10
5Flame Wheel10% chance to burn the target. Thaws user.FirePhys60100%25
10PaybackPower doubles if the user moves after the target.DarkPhys50100%10
15Will-O-WispBurns the target.FireStatus—85%15
20Flame Charge100% chance to raise the user's Speed by 1.FirePhys50100%20
25IncinerateDestroys the foe(s) Berry/Gem.FireSpec60100%15
30Confuse RayConfuses the target.GhostStatus—100%10
35Nasty PlotRaises the user's Sp. Atk by 2.DarkStatus——20
40Dark Pulse20% chance to make the target flinch.DarkSpec80100%15
45Lava Plume30% chance to burn adjacent Pokémon.FireSpec80100%15
50RuinationDoes damage equal to 1/2 target's current HP.DarkSpec190%10
55BounceBounces turn 1. Hits turn 2. 30% paralyze.FlyingPhys8585%5
60SwaggerRaises the target's Attack by 2 and confuses it.NormalStatus—85%15
65Inferno100% chance to burn the target.FireSpec10050%5
70MementoLowers target's Attack, Sp. Atk by 2. User faints.DarkStatus—100%10
75OverheatLowers the user's Sp. Atk by 2.FireSpec13090%5

TM / HM / TR 35

TM01Take DownHas 1/4 recoil.NormalPhys9085%20
TM06Scary FaceLowers the target's Speed by 2.NormalStatus—100%10
TM07ProtectPrevents moves from affecting the user this turn.NormalStatus——10
TM17Confuse RayConfuses the target.GhostStatus—100%10
TM24Fire SpinTraps and damages the target for 4-5 turns.FireSpec3585%15
TM25FacadePower doubles if user is burn/poison/paralyzed.NormalPhys70100%20
TM29HexPower doubles if the target has a status ailment.GhostSpec65100%10
TM30Snarl100% chance to lower the foe(s) Sp. Atk by 1.DarkSpec5595%15
TM38Flame Charge100% chance to raise the user's Speed by 1.FirePhys50100%20
TM47EndureUser survives attacks this turn with at least 1 HP.NormalStatus——10
TM49Sunny DayFor 5 turns, intense sunlight powers Fire moves.FireStatus——5
TM59Zen Headbutt20% chance to make the target flinch.PsychicPhys8090%15
TM70Sleep TalkUser must be asleep. Uses another known move.NormalStatus——10
TM74ReflectFor 5 turns, physical damage to allies is halved.PsychicStatus——20
TM75Light ScreenFor 5 turns, special damage to allies is halved.PsychicStatus——30
TM85RestUser sleeps 2 turns and restores HP and status.PsychicStatus——5
TM87TauntTarget can't use status moves its next 3 turns.DarkStatus—100%20
TM94Dark Pulse20% chance to make the target flinch.DarkSpec80100%15
TM103SubstituteUser takes 1/4 its max HP to put in a substitute.NormalStatus——10
TM107Will-O-WispBurns the target.FireStatus—85%15
TM108Crunch20% chance to lower the target's Defense by 1.DarkPhys80100%15
TM118Heat Wave10% chance to burn the foe(s).FireSpec9590%10
TM120Psychic10% chance to lower the target's Sp. Def by 1.PsychicSpec90100%10
TM125Flamethrower10% chance to burn the target.FireSpec90100%15
TM140Nasty PlotRaises the user's Sp. Atk by 2.DarkStatus——20
TM141Fire Blast10% chance to burn the target.FireSpec11085%5
TM152Giga ImpactUser cannot move next turn.NormalPhys15090%5
TM157OverheatLowers the user's Sp. Atk by 2.FireSpec13090%5
TM163Hyper BeamUser cannot move next turn.NormalSpec15090%5
TM165Flare BlitzHas 33% recoil. 10% chance to burn. Thaws user.FirePhys120100%15
TM171Tera BlastIf Terastallized: Phys. if Atk > SpA, type = Tera.NormalSpec80100%10
TM177SpiteLowers the PP of the target's last move by 4.GhostStatus—100%10
TM195Burning Jealousy100% burns a target that had a stat rise this turn.FireSpec70100%5
TM199Lash Out2× power if the user had a stat lowered this turn.DarkPhys75100%5
TM207Temper FlarePower doubles if the user's last move failed.FirePhys75100%10

Biology

Wo-Chien, Chien-Pao, Ting-Lu, and Chi-Yu are a group of four Legendary Pokémon. The four were trapped in shrines due to their rampage and destruction. Chi-Yu is a goldfish-like Pokémon composed of fire.

It has beads adorned around its eyes. The beads are said to be filled with the envy of those who wanted to have them. Chi-Yu's body is capable of producing flames hot enough to melt rock.

Adapted from Wikipedia: List of generation IX Pokémon · CC BY-SA 4.0 · edited.

Pokédex entries

Ruinous Pokémon
Paldea · Scarlet & Violet
Color
Red
—
Paldea#396

  1. The envy accumulated within curved beads that sparked multiple conflicts has clad itself in fire and become a Pokémon.

    Violet

  2. It controls flames burning at over 5,400 degrees Fahrenheit. It casually swims through the sea of lava it creates by melting rock and sand.

    Scarlet

Names around the world

English
Chi-Yu
Japanese
イーユイ
Japanese (romaji)
Yiyui
Korean
위유이
Chinese (Traditional)
古玉魚
Chinese (Simplified)
古玉鱼
French
Yuyu
German
Yuyu
Spanish
Chi-Yu
Italian
Chi-Yu

Sprites

Artwork and 3D models

Generation IX · animated models

Training

3 SpA
6 ≈0.8% with a Poké Ball at full HP
0
285
Slow

Breeding

Undiscovered
Genderless
50 egg cycles ≈13,005 steps (Gen IV–VII)

Where to find

Not found in the wild in the games we have location data for.

Locations cover Red & Blue to Sword & Shield (with its DLC) and Let’s Go. We don’t have them yet for Legends: Arceus, Brilliant Diamond & Shining Pearl, Scarlet & Violet and Legends: Z-A.