
Pokemon Guide
Omastar is a Rock and Water-type fossil Pokemon known for its shell, high Special Attack and evolution from Omanyte.
Normal Form
Shiny Form
Last Updated: May 2026 | Page Status: This Omastar guide supports current Pokemon games and future updates. Location, moves and availability details will be updated as new Pokemon game data becomes available.
| Description | Quick Facts |
| Stats | Best Moves |
| All Moves | Weaknesses |
| Evolution | Locations |
| FAQ |
Omastar evolves from Omanyte at Level 40. It is the final form of the Helix Fossil line.
Competitive Overview
Omastar can be dangerous with Shell Smash or rain support thanks to strong Special Attack and Water/Rock coverage.
Its biggest strengths are Special Attack and setup potential, while its biggest issue is a severe Grass weakness.
Here are the key facts to know about Omastar, including its type, abilities, height, weight and species information.
Name
Omastar
National Dex
#0139
Type
Rock / Water
Species
Spiral Pokemon
Height
3’03” / 1.0 m
Weight
77.2 lbs / 35.0 kg
Abilities
Swift Swim, Shell Armor, Weak Armor
Omastar has high Defense and Special Attack with low Speed before setup or rain.
Omastar uses Water, Rock, Ice and hazard moves across Pokemon games.
Reliable Water-type damage.
High-power Water-type damage.
Rock-type coverage with a chance to boost all stats.
Reliable Rock-type physical damage.
High-power Rock-type coverage.
Coverage against Dragon, Flying, Grass and Ground-type Pokemon.
A strong setup move in games where the line can use it.
Hazard support when available.
Omastar can learn a different move pool depending on the Pokemon game. Use the section below to view Omastar’s move list by learn method.
Move data shown from: Pokemon Sword and Shield
Omastar is a Rock / Water-type Pokemon. This gives it resistances to Normal, Flying, Poison, Fire and Ice-type moves, but leaves it weak to Fighting, Ground, Grass and Electric-type attacks.
Type
Rock, Water
Weaknesses
Fighting, Ground, Grass, Electric
Resistances
Normal, Flying, Poison, Fire, Ice
Immunity
None
Omastar’s abilities support rain sweeping, critical-hit protection or Speed boosts after physical hits.
Doubles Omastar’s Speed in rain.
Prevents critical hits.
Raises Speed and lowers Defense after being hit by a physical attack.
Omastar evolves from Omanyte at Level 40.
Stage 1
Revived from the Helix Fossil
Stage 2
Evolves from Omanyte at Level 40
Omastar is usually obtained by evolving Omanyte at Level 40.
| Game | Where to Find Omastar |
|---|---|
Pokemon Red |
Evolve Omanyte at Level 40. |
Pokemon Blue |
Evolve Omanyte at Level 40. |
Pokemon Yellow |
Evolve Omanyte at Level 40. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Gold |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Silver |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Crystal |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Ruby |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Sapphire |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Emerald |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon FireRed |
Evolve Omanyte at Level 40. |
Pokemon LeafGreen |
Evolve Omanyte at Level 40. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Diamond |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Pearl |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Platinum |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon HeartGold |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon SoulSilver |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Black |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon White |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Black 2 |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon White 2 |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
| Game | Where to Find Omastar |
|---|---|
Pokemon X |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Y |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Omega Ruby |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Alpha Sapphire |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Sun |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Moon |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Ultra Sun |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Ultra Moon |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Let’s Go Pikachu |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Let’s Go Eevee |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Sword |
Frigid Sea, Roaring-Sea Caves and Three-Point Pass in Crown Tundra content, or evolve Omanyte. |
Pokemon Shield |
Frigid Sea, Roaring-Sea Caves and Three-Point Pass in Crown Tundra content, or evolve Omanyte. |
Pokemon Brilliant Diamond |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Shining Pearl |
Evolve Omanyte at Level 40, transfer from another compatible game or catch in select fossil-related areas. |
Pokemon Legends: Arceus |
Not available in this game. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Scarlet |
Trade or transfer from another compatible game. |
Pokemon Violet |
Trade or transfer from another compatible game. |
Pokemon Legends Z-A |
Location data not yet available. |
| Game | Where to Find Omastar |
|---|---|
Pokemon Winds and Waves |
Coming soon once official location, encounter or transfer information is confirmed. |
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Here are quick answers to common questions about Omastar. This FAQ is visible on-page content only.
Omastar is a Rock and Water-type Pokemon.
Omastar evolves from Omanyte at Level 40.
Omastar can be strong with rain or setup support, but it has a severe Grass weakness.
Current location data for Omastar in Pokemon Legends Z-A is not yet available.
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