Cosmoem
Cosmoem is a Psychic-type Pokémon, the Protostar Pokémon, number 790 (#0790) in the National Pokédex. It was introduced in Generation 7 and comes from the Alola region. It is 0.1 m tall and weighs 999.9 kg.
Cosmoem is the Protostar Pokémon, a motionless golden cocoon that is tied with Celesteela as the heaviest Pokémon in existence, even though it is among the shortest. The Pokédex says its shell is harder than any known material.
How to pronounce Cosmoem
Cosmoem is pronounced KOZ-moh-em. The capital letters show the stressed syllable.
Listen to Cosmoem said out loud:
In Japanese it is コスモウム (Cosmovum).
Hear every other name on the Pokémon pronunciation guide.
Lore
Biology
Cosmoem is a see-through deep blue sphere patterned like a starry sky, set in a golden shell of a flat oval ringed by eight half-oval spikes. A small black core sits at its centre, with two orange semicircles that look like closed eyes. It is 0.1 m (0'04") tall and weighs 999.9 kg (2,204.4 lbs), though Bulbapedia notes that its Pokédex height is really its width, as the concept art shows.
Behaviour
Cosmoem cannot move: the Pokédex says it is motionless as if dead, though its body is faintly warm when touched. People think it may come from another world, and the people of ancient Alola named it the cocoon of the stars.
Habitat
The Pokédex gives no habitat. It cannot be caught wild in Sun and Moon, where you obtain it by evolving Cosmog; in Scarlet and Violet it needs a transfer from Pokémon HOME or an event, and it is unobtainable in Legends: Z-A.
Diet
The Pokédex says the absorption of starlight fuels its growth.
Powers
Its Ability is Sturdy, and its moves are Cosmic Power, which raises its Defense and Special Defense, and Teleport. Base Defense and Special Defense are both 131, but its Attack and Special Attack are only 29, so it is all defence and no offence.
Name origin
Cosmoem may blend cosmos, embryo and ovum, the Latin word for egg. The Japanese name is Cosmovum (コスモウム), which may blend cosmos and ovum.
Design inspiration
Bulbapedia says it has features of both a stylised sun, with rays, and a stylised moon, with a pair of crescents, and that its huge weight for its size recalls compressed objects like neutron stars. These are fan readings.
Evolution notes
Cosmoem evolves into Solgaleo at level 53 in Sun, Ultra Sun, Sword and Scarlet, and into Lunala at level 53 in Moon, Ultra Moon, Shield and Violet. Bulbapedia says it glows orange or purple as it does.
In the games
Cosmoem is a stage in the story of Sun, Moon, Ultra Sun and Ultra Moon, where Lillie carries one in her bag. In Sword and Shield's Crown Tundra you evolve one yourself.
In the anime
Ash's Nebby evolved into Cosmoem in 'Faba's Revenge!', after being trapped in a device built by Faba, and became a Solgaleo in 'Revealing the Stuff of Legend!'.
Fun facts
- No evolution adds more weight than Cosmog to Cosmoem, a gain of 999,800 percent.
- Bulbapedia counts only three moves for Cosmoem, the fewest learnable moves of any evolved Pokémon.
- Bulbapedia says it is the only Pokémon that evolves at level 53.
- Bulbapedia calls it the shortest of all Legendary Pokémon.
Base stats
- HP: 43
- Attack: 29
- Defense: 131
- Sp. Atk: 29
- Sp. Def: 131
- Speed: 37
Cosmoem’s base stat total is 400. Its highest stat is Defense and Sp. Def.
Type matchups
What is Cosmoem weak to?
Cosmoem takes extra damage from Bug (2×), Ghost (2×), Dark (2×) moves.
It resists Fighting (½×), Psychic (½×).
Evolution
What does Cosmoem evolve from?
Cosmoem evolves from Cosmog at level 43.
How does Cosmoem evolve?
Cosmoem evolves into Solgaleo at level 53. Cosmoem evolves into Lunala at level 53.
The whole family: Cosmog, Cosmoem, Solgaleo, Lunala.
Abilities
- Sturdy: Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.
Moves
Moves Cosmoem learns by level up in Scarlet / Violet
| Level | Move | Type | Category | Power |
|---|---|---|---|---|
| Evo | Cosmic Power | Psychic | Status | — |
| 1 | Teleport | Psychic | Status | — |
“Evo” means Cosmoem learns the move the moment it evolves: Cosmic Power.
Breeding & training
- Gender: genderless.
- Egg groups: Undiscovered.
- Egg cycles: 120 (steps to hatch, Scarlet/Violet: 15,360).
- Catch rate: 45 out of 255.
- Base friendship (Gen 8 onward): 0.
- Growth rate: Slow (1,250,000 experience points to reach level 100).
- Defeating it gives 1 Defense and 1 Sp. Def effort values.
- Base experience yield: 140.
Pokédex entries
It sucks in dust from the air at an astounding rate, frantically building up energy within its core as preparation for evolution. (Shield)
The absorption of starlight fuels this Pokémon's growth. The shell that encases it is harder than any known material. (Sword)
As it absorbs light, Cosmoem continues to grow. Its golden shell is surprisingly solid. (Ultra Moon)
The king who ruled Alola in times of antiquity called it the “cocoon of the stars” and built an altar to worship it. (Ultra Sun)
There's something accumulating around the black core within its hard shell. People think this Pokémon may come from another world. (Moon)
Motionless as if dead, its body is faintly warm to the touch. In the distant past, it was called the cocoon of the stars. (Sun)
Names around the world
| Japanese | コスモウム |
|---|---|
| Romaji | Cosmovum |
| French | Cosmovum |
| German | Cosmovum |
| Spanish | Cosmoem |
| Italian | Cosmoem |
| Korean | 코스모움 |
| Chinese (Simplified) | 科斯莫姆 |
| Chinese (Traditional) | 科斯莫姆 |
Trivia
- Heaviest Pokémon: 999.9 kg, shared with 1 other.
- Heaviest Psychic type: 999.9 kg.
- Shortest Psychic type: 0.1 m.
- Highest Defense among Psychic types: 131.
- Heaviest Pokémon in Gen 7: 999.9 kg, shared with 1 other.
- Shortest Pokémon in Gen 7: 0.1 m, shared with 2 others.
- Heaviest Psychic type in Gen 7: 999.9 kg.
- Shortest Psychic type in Gen 7: 0.1 m.
- Slowest Psychic type in Gen 7: 37 Speed, shared with 1 other.
- Highest Defense among Psychic types in Gen 7: 131.
- Highest Sp. Def among Psychic types in Gen 7: 131.
- Taller than 0% of all Pokémon (0.1 m).
- Heavier than 100% of all Pokémon (999.9 kg).
- Base stat total 400, ranked #633 of 1,025.
- Its best stat is Sp. Def, ranked #22 of 1,025.
- One of 102 Psychic-type Pokémon (counting dual types).
- One of 170 blue Pokémon.
- Number 69 of 88 Pokémon introduced in Generation 7 (Alola).
- Part of an evolution family of 4 Pokémon.
- Can learn 2 different moves in Scarlet / Violet.
- Catch rate 45: about 5.9% per Poké Ball at full health.
- Appears in 6 distinct Pokédex entries.
Sources and fact-checking
- Stats, types, abilities, moves, evolutions, forms and Pokédex entries: PokéAPI open game data.
- Lore: written by pokee.si in our own words, researched from Bulbapedia: Cosmoem (Pokémon), Serebii: Cosmoem (Scarlet/Violet Pokédex).
- Pronunciation (KOZ-moh-em): no English source says it out loud, so it is our best guess from the parts of the name.
Last checked: . Every sentence of the lore was checked against Bulbapedia, Serebii and the game data.
Explore
Psychic-type Pokémon · Alola region guide · Sturdy ability · Compare Cosmoem · Full Pokédex · Type chart · All moves
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