Stats & Training
Defense and Sp. Atk carry most of Omastar's stat budget. Speed's the obvious dump stat. Tough to catch and yields 2 Defense EVs. Follows a medium-fast 1M XP curve.
It is thought that this Pokémon became extinct because its spiral shell grew too large.
It is thought that this Pokémon became extinct because its spiral shell grew too large.
Omastar Weakness
Omastar's Rock/Water typing leaves it vulnerable to Grass, Electric, Fighting, and Ground. Grass hits land at 4x, so they're the biggest threat. 5 resistances help offset the weaknesses. Omastar's physical bulk (base 125 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.
| Damage | Types |
|---|---|
| 4x (Critical) | Grass |
| 2x (Weak) | Electric, Fighting, Ground |
| 0.5x (Resist) | Normal, Ice, Poison, Flying |
| 0.25x (Resist) | Fire |
- Fairy type does not exist — Dragon has fewer checks
- Physical / Special split now per-move (introduced Gen IV)
In Black & White, Excadrill can KO Omastar with Earthquake (100-117%). Conkeldurr's Drain Punch hits Omastar for 84-99%. Magnezone's Thunderbolt also KOs at 154-181%.
 Excadrill GroundSteel | A | |
Recommended Build AbilitySandforce ItemChoice Scarf NatureJolly Moves
Damage vs Omastar View Excadrill builds →Earthquake 2x100-117%KO Rapid Spin8-10% Rock Slide25-30% | ||
 Conkeldurr Fighting | B | |
Recommended Build AbilityGuts ItemLeftovers NatureAdamant Moves
Damage vs Omastar View Conkeldurr builds →Drain Punch 2x84-99% Mach Punch 2x45-53% | ||
 Magnezone ElectricSteel | B | |
Recommended Build AbilityMagnetpull ItemAir Balloon NatureModest Moves
Damage vs Omastar View Magnezone builds →Thunderbolt 2x154-181%KO Flash Cannon68-80% Volt Switch 2x120-141%KO | ||
 Breloom GrassFighting | B | |
Recommended Build AbilityTechnician ItemLife Orb NatureAdamant Moves
Damage vs Omastar View Breloom builds →Mach Punch 2x57-67% Bullet Seed 4x70-83% | ||
Black & White Evolution
Evolved from Omanyte. Omastar is the final form in this two-stage line. Plenty of partners for breeding via two egg groups. Eggs are slow to hatch. HP grew the most through evolution (+35 over Omanyte), and Omastar peaks at 495 total stats. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Omastar to get Omanyte eggs using 78 partners from the Water1 and Water3 egg groups. Notable egg moves include Aurora Beam, Bide, Bubble Beam and 10 more.
Black & White Omastar Best Moveset
One guaranteed turn is all Omastar needs. Focus Sash buys it, max Sp. Atk and Speed EVs make it count, and Shellarmor adds something extra. The goal: deal early damage and deal damage with Surf. The remaining moves gives it play beyond just the lead turn.
Best Build
Omastar best EVs are Sp. Atk and Speed
Special Sweeper Moveset
- Ice Beam
- Shell Smash
- Surf
- Hidden Power Grass
Recommended Teammates
Moves
You'll want to breed for Aurora Beam and Bide on Omastar. These egg moves aren't just nice to have. Combined with STAB from Hydro Pump and Stone Edge, they expand what Omastar can actually threaten in practice.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Transfer Moves
How to Get Omastar in Black & White
Can't catch Omastar directly. Start with Omanyte but it's a rare spawn from the locations below, then evolve at level 40. The 2-stage line from Omanyte to Omastar is where the leveling time goes.
How to Obtain Omastar in Black & White
Step 1Catch OmanyteNacrene City - Nacrene MuseumWhiteGift from NPC Lv.25 CityLimitedMidAnyRevive Helix FossilNacrene City - Nacrene MuseumBlackGift from NPC Lv.25 CityLimitedMidAnyRevive Helix Fossil
Step 2Omastar ✓
Omastar Guide
In Black & White, Swift Swim changes the entire equation for Omastar. The 495 BST doesn't tell the full story. Ranked C-Tier as a wallbreaker. Ice Beam with Focus Sash is the standard set.
Swift Swim is what you want on Omastar. Every competitive set worth running is built with that ability in mind. The alternatives (Shell Armor, Weak Armor) work on paper but Swift Swim is what makes Omastar worth using. On wall sets, Swift Swim pairs with Omastar's base 125 Defense to absorb physical hits on the switch.
At base 55 Speed, it won't be moving first often. On offense, Omastar is a special attacker with base 115 Sp. Atk. Defensively? Enough bulk to take a hit or two. Best used as a wallbreaker.
For Black & White, Omastar has answers, but so do you. Status moves (Toxic, Will-O-Wisp) wear it down. Setup sweepers can use it as a boost opportunity. Physical attackers can break through.
Game Availability
One of the original 151, Omastar has appeared in 19 games — most mainline games. From Red & Blue through the latest titles, it's rarely been left out of a regional Pokedex.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RBDebut
Red & Blue - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3FRLG
FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 4DP
Diamond & Pearl - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XY
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7SM
Sun & Moon - Gen 7LGPE
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves