Cosmoem sits in the middle of its evolution line — stronger than Cosmog but not yet at full power. Most trainers push through to Solgaleo as fast as possible. Flexible enough to run physical or special sets. Introduced in Gen 7.
Defense leads and Attack gets almost nothing. That's Cosmoem's stat line in a nutshell. 2 stats sit in respectable range, but the spread is brutal. Tough to catch and yields 2 Defense and Sp. Def EVs.
Motionless as if dead, its body is faintly warm to the touch. In the distant past, it was called the cocoon of the stars.
There’s something accumulating around the black core within its hard shell. People think this Pokémon may come from another world.
Cosmoem Weakness
VulnerableType-wise, Cosmoem takes extra damage from Bug, Ghost, and Dark. Cosmoem's overall bulk (43/131/131) lets it take a hit or two from most weaknesses before going down.
This Psychic-type links Cosmog to Lunala. Cosmoem has 400 stats but sits in the Undiscovered egg group. Defense has grown the most so far (+100), but there's still another 280 stats to gain in the final evolution.
How to Evolve
Best Build
No build content available for this Pokemon in Gen 7.
Try selecting a different game/generation filter, or check back later.
Not a lot to pick from. Cosmoem gets Psychic STAB for same-type damage, and limited coverage rounds things out. You're building around what's available rather than choosing from a deep bench.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Reminder Moves
No wild encounters for Cosmoem. The 2-stage line runs through Cosmog, which you can catch at moderate rates from the locations below. Evolve at level 43 once you've got the levels.
How to Obtain Cosmoem in Sun & Moon
Step 1Catch CosmogLake of the MooneMoonGift from NPCLv.5EarlyWaterReverse world (Lunala)Lake of the SunneSunGift from NPCLv.5EarlyWaterReverse world (Solgaleo)
Step 2Cosmoem ✓
Cosmoem is a Legendary Pokemon rated D-Tier on our tier list. At 400 BST, it hits hard. It excels as a balanced. Base 131 Defense stands out.
Cosmoem's biggest threats include Volcarona (Bug), Misdreavus (Ghost), and Absol (Dark), all carrying super-effective STAB moves. At base 37 Speed, Cosmoem won't outrun any of these threats so switching to a resist is usually the safer play.
Sturdy is the go-to ability for Cosmoem. It prevents being KOed from full HP, leaving 1 HP instead. It's Cosmoem's only ability.
Base 37 Speed is low. Priority moves or Trick Room are the way to go. On offense, Cosmoem is leaning toward the physical side (base 29 Attack). Defensively? Tanky enough to absorb a few hits.
Cosmoem can be found in Scarlet & Violet, Sword & Shield, Sun & Moon, and Ultra Sun & Ultra Moon.
First obtainable in Sun & Moon, Cosmoem has been featured in 4 titles across 3 generations. Legendary status means a single encounter per playthrough in most games.
- Gen IY
Yellow - Gen IRB

Red & Blue - Gen IIGS

Gold & Silver - Gen IIC
Crystal - Gen IIIRS

Ruby & Sapphire - Gen IIIFRLG

FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS

HeartGold & SoulSilver - Gen IVDP

Diamond & Pearl - Gen VBW

Black & White - Gen VB2W2

Black 2 & White 2 - Gen VIXY

X & Y - Gen VIORAS

Omega Ruby & Alpha Sapphire - Gen VIIUSUM

Ultra Sun & Ultra Moon - Gen VIISMDebut

Sun & Moon - Gen VIILGPE

Let's Go Pikachu & Eevee - Gen VIIISwSh

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A