Weak to (2x damage):
Resistant to (½x damage):
Immune to (0x damage):
Generation IX · #1004 — Ruinous Pokémon
Chi-Yu, known as the Ruinous Pokémon and bearing the National Pokédex number #1004, is a legendary Dark/Fire-type Pokémon introduced in Generation IX. As one of the four Treasures of Ruin alongside Wo-Chien, Chien-Pao, and Ting-Lu, Chi-Yu represents a fascinating blend of ancient artifact and living flame. This genderless Pokémon possesses a base stat total of 570, with its most impressive attribute being its Special Attack of 135, complemented by solid Special Defense at 120 and respectable Speed of 100. Chi-Yu stands at only 0.4 meters in height and weighs a mere 4.9 kilograms, making it one of the smaller legendary Pokémon despite its tremendous power. Its defining characteristic is its unique ability, Beads of Ruin, which lowers the Special Defense of all Pokémon except itself, making it a strategic force in competitive play.
0.4m
4.9kg
Ruinous Pokémon
Genderless
red
fish
Lowers Special Defense of all Pokémon except itself.
Chi-Yu's physical composition is unlike most other Pokémon, as its true form consists of two pairs of curved jade beads that were once considered sacred artifacts worn during religious rituals. Each pair of beads encircles a black orb with white accents forming its distinctive eyes, while the remainder of its body is constructed from dark red and yellow flames that it perpetually controls. The Pokédex reveals that Chi-Yu's flames burn at an extraordinary 5,400 degrees Fahrenheit (3,000 degrees Celsius), hot enough to melt rock and sand into molten lava through which it casually swims as if it were water. When Chi-Yu attacks, its eyes and beads glow with intense red and yellow light, reflecting the overwhelming power contained within. Like the other Treasures of Ruin, Chi-Yu's body is merely a construct born from its control over elemental forces—the beads themselves are the true Pokémon, given life by the accumulated envy of those who fought wars over their possession.
Chi-Yu is classified as a genderless Pokémon, existing without male or female distinction, which aligns with its nature as a legendary entity rather than a biological creature in the traditional sense. As a manifestation of accumulated envy given form through supernatural means, Chi-Yu transcends the reproductive systems that govern most Pokémon species. Its egg group is listed as 'No Eggs', meaning Chi-Yu cannot breed under any circumstances, even with Ditto or other genderless Pokémon that might normally produce eggs in other legendary cases. The base friendship value of 0 reinforces its isolated, potentially hostile disposition toward trainers and other Pokémon. While Chi-Yu cannot be obtained through breeding or hatching, wild encounters in the game provide the sole legitimate method of capturing this legendary Pokémon, making each Chi-Yu encountered a unique individual with no genetic lineage to trace.
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lets go pikachu lets go eevee
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lets go pikachu lets go eevee
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lets go pikachu lets go eevee
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lets go pikachu lets go eevee
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lets go pikachu lets go eevee
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sword shield
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yellow
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red blue
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platinum
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scarlet violet
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scarlet violet
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diamond pearl
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brilliant diamond shining pearl
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scarlet violet
+375 more TMs/HMs
Chi-Yu does not evolve into or from any other Pokémon, remaining in its singular form throughout all games in which it appears. As a legendary Pokémon, it has no evolutionary line and cannot undergo Mega Evolution or any other form of transformation. This static nature is consistent with its role as one of the Treasures of Ruin, each of which exists as a complete entity shaped by the accumulated emotions of human conflict. The Pokédex classification of Chi-Yu as a legendary rather than mythical Pokémon further distinguishes it from event-exclusive creatures, and its availability through normal gameplay in Pokémon Scarlet and Violet confirms its status as a discoverable legend rather than a special distribution Pokémon. The lack of evolution underscores Chi-Yu's primordial nature—it is already in its perfect form, an artifact given life rather than a creature developing toward strength.
Location data not available for this Pokémon in the database.
Chi-Yu inhabits the volcanic regions and lava-rich environments of Paldea, particularly areas where it can freely exercise its mastery over extreme heat and molten terrain. The Violet Pokédex entry suggests that Chi-Yu embodies the envy that once sparked multiple conflicts, indicating that this legendary Pokémon may be drawn to or created in areas of strife and discord. Its behavior is characterized by an almost casual confidence in its power—it swims through seas of lava it creates as naturally as other Pokémon move through water, demonstrating both supreme command over its environment and a certain indifference to the destructive potential of its presence. Chi-Yu's low base friendship of 0 reflects its nature as a manifestation of negative human emotion, suggesting it may be unpredictable or difficult to bond with compared to other legendary Pokémon. Its territorial nature and the rarity of encounters with it in the wild indicate Chi-Yu prefers isolation in the most extreme volcanic landscapes.
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.
The envy accumulated within curved beads that sparked multiple conflicts has clad itself in fire and become a Pokémon.
Chi-Yu's name originates from Chinese and Japanese cultural traditions, with 'Chi' (赤) referring to red and 'Yu' (玉) meaning jade or pearl, directly reflecting its composition of curved jade beads. The Japanese name Yiyui (イーユイ) further emphasizes this connection to East Asian aesthetics and the sacred significance of jade in traditional culture. The design itself draws heavily from traditional jade ornaments and religious artifacts, transforming these revered objects into a manifestation of dark desire through fire. The color scheme of dark red and yellow flames wrapped around the precious jade beads creates a striking visual metaphor—the corruption of sacred objects by destructive emotions. Chi-Yu's fish-like body shape, despite being composed entirely of fire and beads, suggests a creature of fluidity and grace, yet one forever burning with the intensity of conflict. The glow in its eyes when attacking mirrors the gleam of precious gems reflecting firelight, emphasizing both its nature as a treasure and its role as an instrument of ruin.
Chi-yu can learn 46 moves:
Move | Type | Cat. | Power | Acc. | PP |
|---|---|---|---|---|---|
| bounce | flying | Physical | 85 | 85 | 5 |
| burning jealousy | fire | Special | 70 | 100 | 5 |
| confuse ray | ghost | Status | — | 100 | 10 |
| crunch | dark | Physical | 80 | 100 | 15 |
| dark pulse | dark | Special | 80 | 100 | 15 |
| ember | fire | Special | 40 | 100 | 25 |
| endure | normal | Status | — | — | 10 |
| facade | normal | Physical | 70 | 100 | 20 |
| fire blast | fire | Special | 110 | 85 | 5 |
| fire spin | fire | Special | 35 | 85 | 15 |
| flame charge | fire | Physical | 50 | 100 | 20 |
| flame wheel | fire | Physical | 60 | 100 | 25 |
| flamethrower | fire | Special | 90 | 100 | 15 |
| flare blitz | fire | Physical | 120 | 100 | 15 |
| giga impact | normal | Physical | 150 | 90 | 5 |
| heat wave | fire | Special | 95 | 90 | 10 |
| hex | ghost | Special | 65 | 100 | 10 |
| hyper beam | normal | Special | 150 | 90 | 5 |
| incinerate | fire | Special | 60 | 100 | 15 |
| inferno | fire | Special | 100 | 50 | 5 |
| lash out | dark | Physical | 75 | 100 | 5 |
| lava plume | fire | Special | 80 | 100 | 15 |
| light screen | psychic | Status | — | — | 30 |
| mean look | normal | Status | — | — | 5 |
| memento | dark | Status | — | 100 | 10 |
| nasty plot | dark | Status | — | — | 20 |
| overheat | fire | Special | 130 | 90 | 5 |
| payback | dark | Physical | 50 | 100 | 10 |
| protect | normal | Status | — | — | 10 |
| psychic | psychic | Special | 90 | 100 | 10 |
| reflect | psychic | Status | — | — | 20 |
| rest | psychic | Status | — | — | 5 |
| ruination | dark | Special | 1 | 90 | 10 |
| scary face | normal | Status | — | 100 | 10 |
| sleep talk | normal | Status | — | — | 10 |
| snarl | dark | Special | 55 | 95 | 15 |
| spite | ghost | Status | — | 100 | 10 |
| substitute | normal | Status | — | — | 10 |
| sunny day | fire | Status | — | — | 5 |
| swagger | normal | Status | — | 85 | 15 |
| take down | normal | Physical | 90 | 85 | 20 |
| taunt | dark | Status | — | 100 | 20 |
| temper flare | fire | Physical | 75 | 100 | 10 |
| tera blast | normal | Special | 80 | 100 | 10 |
| will o wisp | fire | Status | — | 85 | 15 |
| zen headbutt | psychic | Physical | 80 | 90 | 15 |
In competitive Pokémon battles, Chi-Yu has established itself as a formidable special attacker thanks to its exceptional Special Attack stat of 135 and solid Speed of 100, allowing it to outpace many common threats while dealing devastating special damage. Its signature ability, Beads of Ruin, provides an invaluable team support function by reducing the Special Defense of all opposing Pokémon by one stage upon entering the field, effectively amplifying the damage output of Chi-Yu itself and any special attackers on its team. Chi-Yu's movepool includes powerful special moves such as Dark Pulse (80 Power), Lava Plume (80 Power), Overheat (130 Power), and the legendary exclusive Ruination, which deals damage equal to half the target's maximum HP with perfect accuracy when the user isn't holding an item. The combination of Will-O-Wisp (which can burn physical attackers to cripple their damage output), Nasty Plot (boosting its own Special Attack by two stages), and Confuse Ray provides excellent utility options for controlling battles. With a respectable Special Defense of 120 and 100 Speed, Chi-Yu can function as both an offensive threat and a strategic field controller, making it a viable choice in competitive formats where legendary Pokémon are permitted.
Chi-yu is a dark and fire type Pokemon.
Chi-yu does not evolve.
Chi-yu is weak to ground, rock, water and fighting type moves.
Chi-Yu represents an intriguing evolution in how the Pokémon franchise portrays legendary creatures, drawing explicit connections to human emotion, historical conflict, and cultural artifacts in ways that deepen the lore of the Paldea region. The concept of the Treasures of Ruin—objects that sparked wars and conflicts throughout history before being transformed into Pokémon—introduces a darker, more morally complex dimension to legendary Pokémon, moving beyond the typical categories of creator deities or world-shaping entities. Chi-Yu's thematic connection to envy and conflict resonates with players on a narrative level, suggesting that the most powerful beings in this world may be born from humanity's worst impulses rather than natural phenomena. The design of Chi-Yu as a living jade treasure wreathed in supernatural flame has captured fan imagination, inspiring artwork, fan fiction, and discussion about the philosophical implications of sentient objects in the Pokémon universe. Its role in the game's story and the broader worldbuilding of Pokémon Scarlet and Violet has cemented Chi-Yu as an iconic legendary Pokémon of Generation IX, representing a shift toward more historically and culturally grounded legendary designs.
Chi-Yu is available exclusively in Pokémon Scarlet and Pokémon Violet, where it can be encountered in the Paldea region as one of the four Treasures of Ruin that trainers can discover and capture during their journey. Unlike many legendary Pokémon that require specific story progression or post-game access, Chi-Yu can be found relatively early in the game, allowing dedicated players to build a team around it from the mid-game onward. The specific encounter location places Chi-Yu in volcanic regions of Paldea, consistent with its Fire-type nature and habitat preferences, though exact spawn rates and conditions may vary between versions. With a base catch rate of only 6 (yielding approximately 2.6 percent catch rate with a standard Poké Ball at full health), capturing Chi-Yu requires patience and preparation, making it advisable to use Poké Balls with higher catch rates or to weaken it first. Chi-Yu has not appeared in any spin-off games, events, or other media beyond its debut generation, making it an exclusive discovery for players of Scarlet and Violet, though its appearance in later generations remains a possibility as the series continues to evolve.