cosmoem #790
Type Matchups
Weak to (2x damage):
Resistant to (½x damage):
cosmoem
LegendaryGeneration VII · #0790 — Protostar Pokémon
Cosmoem, known as the Protostar Pokémon, is a legendary Psychic-type that represents one of the most enigmatic stages in Pokémon evolution. As the middle evolution in a three-stage line beginning with Cosmog, Cosmoem occupies a unique position in the games as a dormant, cocoon-like form that prepares for its dramatic transformation into either Solgaleo or Lunala. Introduced in Generation VII, this genderless Pokémon stands as both one of the shortest and heaviest Pokémon ever recorded, weighing an astounding 999.9 kilograms despite measuring only 0.1 meters in height. Its role as a legendary Pokémon ties directly to the mythology of the Alola region, where it was revered in ancient times as the "cocoon of the stars" and was the subject of worship and altar-building ceremonies by the region's earliest rulers.
Base Stats
Height
0.1m
Weight
999.9kg
Category
Protostar Pokémon
Gender
Genderless
Color
blue
Shape
ball
Abilities
Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.
Cosmoem Biology & Physical Characteristics
Cosmoem presents a striking appearance as a translucent, dark-blue orb encased within an elaborate golden shell structure. The shell itself consists of a prominent flat oval centered around the main body, with eight additional half-oval projections radiating outward in an asterisk pattern, creating a visually complex and symmetrical form. At the very center lies a smaller black core, marked by thin blue lines on its upper half and distinctive pink lines below, with two orange semicircles on the front that resemble closed eyes. The overall silhouette bears a remarkable resemblance to an eye itself, which may reflect its psychic nature and connection to perception. Encased within this remarkably durable shell, Cosmoem is completely immobilized and cannot move of its own volition. According to Pokédex entries from Pokémon Sword, the shell that encases this Pokémon is harder than any known material, offering unparalleled protection. The Pokémon's body maintains a faintly warm temperature to the touch, and in Pokémon Refresh it cannot even consume food, instead deriving sustenance directly from starlight and atmospheric dust that it absorbs continuously.
Pokedex Numbers
Training
Breeding
Cosmoem Breeding, Gender Ratio & Egg Groups
Cosmoem is classified as a genderless Pokémon, reflecting its role as a legendary entity and its cosmic, otherworldly nature. As a member of the undiscovered egg group, Cosmoem cannot breed and cannot be obtained through conventional breeding methods. This designation places Cosmoem alongside other legendary and mythical Pokémon, emphasizing its status as a unique and unreproducible entity within the Pokémon world. The impossibility of breeding Cosmoem aligns with its mythological significance in Alolan culture, where it was treated as a singular divine object worthy of altar construction and ancient worship rather than as a naturally occurring species with population dynamics. The genderless classification also contributes to Cosmoem's enigmatic quality—without sexual dimorphism or reproductive capacity, it remains an eternal, unchanging force until its dramatic transformation into its final forms. In mechanical terms, this means trainers who acquire Cosmoem through natural progression cannot create additional individuals through breeding, making the specimen they obtain a precious and singular treasure. The base happiness rating of 0 reflects Cosmoem's alien nature and distant demeanor, suggesting it exists in a state of complete emotional neutrality in its cocoon form.
Sprites
TMs & HMs
tm04
lets go pikachu lets go eevee
tm30
yellow
tm30
red green japan
tr44
sword shield
tm30
red blue
tm30
blue japan
cosmoem's Evolution Chain
Cosmoem Evolution, Mega Evolution & Special Forms
Cosmoem's evolution represents one of the most significant transformations in Pokémon biology, functioning as a crucial intermediary stage between its initial form, Cosmog, and its final legendary forms. Beginning at level 43, Cosmog evolves into Cosmoem, marking the onset of the dormant cocoon phase. The true transformation occurs at level 53, when Cosmoem undergoes one of the franchise's most dramatic evolutions—splitting into either Solgaleo or Lunala depending on the game version. In Pokémon Sun, Ultra Sun, Sword, and Scarlet, Cosmoem evolves into Solgaleo, the Steel/Psychic-type legendary representing the sun, while in Pokémon Moon, Ultra Moon, Shield, and Violet, it becomes Lunala, the Ghost/Psychic-type legendary embodying the moon. During evolution, Cosmoem glows with either an orange radiance correlating to Solgaleo or a purple glow corresponding to Lunala, with the form gaining distinctive traits of either a stylized sun or moon. This evolution is not merely physical but represents a fundamental shift in power, as both Solgaleo and Lunala gain significantly increased stats and dual typing, transforming from the stationary Cosmoem into formidable legendary Pokémon.
Where to Find
Location data not available for this Pokémon in the database.
Cosmoem Behaviour and Natural Habitat
Cosmoem exists in a state of almost complete dormancy, remaining motionless as if in a death-like sleep while it undergoes its transformative cocoon stage. Despite this apparent inactivity, the Pokémon is far from idle—it actively absorbs starlight and dust particles from the air at an astounding rate, frantically building up energy within its core in preparation for evolution. This behavior reflects the Shield Pokédex entry, which describes how Cosmoem continuously gathers atmospheric particles to fuel its metamorphosis. The Pokémon's attachment to stellar phenomena suggests it may prefer environments where starlight is abundant and unobstructed, though little is directly stated about its preferred habitats. The Pokédex entries from Moon and Ultra Moon cryptically suggest that something is accumulating around its black core, and that people theorize Cosmoem may originate from another world entirely. Its role as the "cocoon of the stars" in Alolan mythology indicates it likely existed in isolated or sacred locations within the Alola region, places where ancient peoples could observe and venerate this mysterious celestial entity.
Pokedex Entries
Generation VII
Motionless as if dead, its body is faintly warm to the touch. In the distant past, it was called the cocoon of the stars.
The king who ruled Alola in times of antiquity called it the “cocoon of the stars” and built an altar to worship it.
There’s something accumulating around the black core within its hard shell. People think this Pokémon may come from another world.
As it absorbs light, Cosmoem continues to grow. Its golden shell is surprisingly solid.
Generation VIII
The absorption of starlight fuels this Pokémon’s growth. The shell that encases it is harder than any known material.
It sucks in dust from the air at an astounding rate, frantically building up energy within its core as preparation for evolution.
Cosmoem Name Origin & Design Inspiration
The name Cosmoem derives from a combination of "cosmos," referring to the universe and celestial sphere, and "ium," a Latin suffix commonly used for chemical elements and scientific nomenclature, suggesting Cosmoem is a primordial substance or element of the cosmos itself. The Japanese name Cosmovum maintains this cosmic theme while incorporating "ovum," the Latin word for egg, directly referencing its role as a cocoon or chrysalis-like evolutionary form. Visually, Cosmoem embodies the concept of potential and transformation—its eye-like appearance may symbolize cosmic vision or the observation of stellar phenomena, while its cocoon structure explicitly references the metamorphosis of butterflies, transposed onto a celestial context. The intricate golden shell with its radiating projections evokes both mathematical precision and astronomical instruments, suggesting measurement and observation of the heavens. The contrast between the dark blue translucent interior containing starscape patterns and the metallic golden exterior creates a visual representation of the interplay between the cosmic void and material reality. The design deliberately incorporates symmetry and balance, reflecting themes of duality that culminate in its evolution into either the masculine solar Solgaleo or the feminine lunar Lunala.
Learnable Moves
Cosmoem can learn 2 moves:
Move | Type | Cat. | Power | Acc. | PP |
|---|---|---|---|---|---|
| cosmic power | psychic | Status | — | — | 20 |
| teleport | psychic | Status | — | — | 20 |
Cosmoem Competitive Battle Guide
In competitive Pokémon play, Cosmoem is rarely utilized due to its extremely limited movepool and underwhelming base stats that total only 400. The Pokémon learns only the move Teleport upon leveling, which provides utility but no offensive capability, and upon evolution gains access to Cosmic Power, a stat-boosting move that increases its Special Attack and Special Defense. Cosmoem's stat distribution heavily favors defense and special defense, with both reaching 131, while its attack and special attack remain pathetically low at 29, and its speed is equally poor at 37. The Sturdy ability, while normally valuable for preventing one-hit knockouts and leaving the Pokémon with 1 HP when struck at full health, provides minimal benefit to a Pokémon as slow and defensively focused as Cosmoem. Most competitive players view Cosmoem as strictly a transitional form between Cosmog and either Solgaleo or Lunala, neither of which it should remain as during gameplay. The inability to teach Cosmoem technical machines in most games further limits its strategic options, making it essentially a placeholder rather than a viable competitive choice. Any serious competitive application requires the Pokémon to evolve into its final form, where Solgaleo's steel typing and superior stats make it a legitimate threat, while Lunala's ghostly nature and special attack investment prove far more useful in battle scenarios.
Commonly Asked Questions About Cosmoem
What type is Cosmoem?
Cosmoem is a psychic type Pokemon.
What does Cosmoem evolve into?
Cosmoem evolves into solgaleo, then into lunala.
What are Cosmoem's weaknesses?
Cosmoem is weak to bug, ghost and dark type moves.
Cosmoem Cultural Impact & Franchise History
Cosmoem holds significant cultural importance within the Pokémon franchise, particularly as a central element of Generation VII's narrative and worldbuilding in Alola. The Pokémon's role as the legendary "cocoon of the stars" connects it to ancient Alolan civilization, where it was revered with such importance that the region's ancient king constructed altars specifically to worship it. In the main series anime, Cosmoem appears as Nebby, a companion Pokémon to the protagonist Lillie in Pokémon Sun and Moon, becoming one of the story's emotional anchors and receiving a dedicated episode in Pokémon Evolutions that explores its transformation. The design of Cosmoem captured fan imagination due to its paradoxical nature—simultaneously the heaviest and one of the shortest Pokémon, presenting an almost impossible density that suggests otherworldly properties. Online communities have extensively discussed the philosophical implications of Cosmoem's complete immobility and apparent death-like state, debating whether consciousness exists within the shell and how the Pokémon's sensory experience differs from that of other Pokémon. The contrast between Cosmoem's dormant appearance and its frantic internal activity, as described in Pokédex entries, has inspired fan theories and artwork exploring themes of hidden potential, transformation, and cosmic destiny.
Where to Find Cosmoem in Every Pokémon Game
Cosmoem is obtainable in Pokémon Sun, Ultra Sun, Moon, and Ultra Moon, where it evolves naturally from Cosmog at level 43 as part of the main storyline involving the player's encounter with this legendary lineage. In Pokémon Sword and Shield, Cosmoem becomes available through the Dynamax Adventures in the Crown Tundra DLC, allowing players to encounter and catch it through the dynamax raid scenario mechanic. Pokémon Scarlet and Violet feature Cosmoem within their Pokédex and allow players to obtain it through normal progression, though the specific method depends on version-exclusive legendary encounters. Cosmoem does not appear in Pokémon Let's Go Pikachu and Eevee, nor in Pokémon Legends: Arceus, remaining exclusive to the main series games from Generation VII onward. The Pokémon cannot be obtained through breeding due to its undiscovered egg group status, meaning the only method to acquire additional Cosmoem beyond the story-provided specimen involves using legitimate trading mechanics with other players or migrating previously caught specimens from other games via the Pokémon Home service. Cosmoem's availability is deliberately restricted, reflecting its legendary status and the games' design intention to present it as a singular, precious entity that players obtain once per playthrough rather than a common Pokémon to be farmed or collected in multiples.