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'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 |
Rillaboom can KO Omastar with Wood Hammer (209-246%). Jolteon threatens a KO with Thunderbolt (187-220%). Annihilape deals 58-68% with Drain Punch.
 Rillaboom Grass | S | |
Recommended Build AbilityGrassy Surge ItemAssault Vest NatureJolly Moves
Damage vs Omastar View Rillaboom builds →Wood Hammer 4x209-246%KO | ||
 Jolteon Electric | A | |
Recommended Build AbilityVoltabsorb ItemChoice Specs NatureTimid Moves
Damage vs Omastar View Jolteon builds →Thunderbolt 2x187-220%KO Volt Switch 2x145-171%KO Shadow Ball55-65% | ||
 Annihilape FightingGhost | A | |
Recommended Build AbilityDefiant ItemSitrus Berry NatureJolly Moves
Damage vs Omastar View Annihilape builds →Drain Punch 2x58-68% | ||
 Krookodile GroundDark | A | |
Recommended Build AbilityMoxie ItemChoice Scarf NatureJolly Moves
Damage vs Omastar View Krookodile builds →Earthquake 2x90-106%KO Knock Off29-35% Close Combat 2x72-85% | ||
 Whimsicott GrassFairy | A | |
Recommended Build AbilityPrankster ItemCovert Cloak NatureBold Moves
Damage vs Omastar View Whimsicott builds →Moonblast40-47% | ||
Evolved from Omanyte. Omastar is the final form in this two-stage line. A massive partner pool 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 114 partners from the Water1 and Water3 egg groups.
White Herb and Weakarmor form the backbone. Omastar invests max Sp. Atk and Speed EVs to play its special attacker role properly, and Modest nature pushes Sp. Atk higher. Scald handles the heavy lifting on offense. The remaining moves rounds it out.
Best Build
Omastar best EVs are Sp. Atk and Speed
Special Sweeper Moveset
- Earth Power
- Shell Smash
- Ice Beam
- Scald
Recommended Teammates
Support Moveset
- Ice Beam
- Surf
- Spikes
- Toxic
Recommended Teammates
Special Sweeper Moveset
- Earth Power
- Shell Smash
- Ice Beam
- Scald
Recommended Teammates
Support Moveset
- Ice Beam
- Surf
- Spikes
- Toxic
Recommended Teammates
Let's Go Pikachu & Eevee uses different battle mechanics.
Competitive build content is not applicable for this game. Select a main series game for builds.
Doubles Special Wallbreaker Moveset
- Blizzard
- Earth Power
- Scald
- Hydro Pump
Recommended Teammates
Special Sweeper Moveset
- Ice Beam
- Surf
- Shell Smash
- Earth Power
Recommended Teammates
Moves
Leveling does the heavy lifting. Omastar picks up Surf and Hydro Pump along the way, building toward a complete offensive set. TMs add Normal and Dark coverage and more, but the foundation's already strong by then.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Level-up moves are just the starting point for Omastar. TMs unlock Normal and Dark coverage and more and turn a straightforward STAB kit around Meteor Beam and Hydro Pump into something with actual range.
Leveling does the heavy lifting. Omastar picks up Hydro Pump and Blizzard along the way, building toward a complete offensive set. TMs add Normal and Dark coverage and more, but the foundation's already strong by then.
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.
No wild encounters for Omastar in Brilliant Diamond & Shining Pearl. Bring Omanyte over from Red, Yellow, or Sword, then level through the stages. Each step in the chain is laid out below.
You're catching Omanyte first, not Omastar. Omanyte appears at decent rates in the encounters below. The step cards map the full 2-stage line with evolution methods between each stage.
How to Obtain Omastar in Sword & Shield
To get Omastar, start by catching Omanyte through surfing encounters at Lv. 60-65. The chain covers 1 catchable stage before reaching the final form.
Step 1Catch OmanyteRoaring-Sea CavesSurfing on water Lv.60-65 Cave24%PostNormal WeatherRoaring-Sea CavesSurfing on water Lv.60-65 Cave24%PostThunderstormRoaring-Sea CavesSurfing on water Lv.60-65 Cave24%PostIntense SunRoaring-Sea CavesSurfing on water Lv.60-65 Cave24%PostRainingRoaring-Sea CavesSurfing on water Lv.60-65 Cave24%PostHeavy FogRoaring-Sea CavesSurfing on water Lv.60-65 Cave24%PostOvercastRoaring-Sea CavesSurfing on water Lv.60-65 Cave20%PostSnowstormRoaring-Sea CavesSurfing on water Lv.60-65 Cave20%PostSnowing
Step 2Omastar ✓
You're catching Omanyte first, not Omastar. Omanyte appears at moderate rates in the encounters below. The step cards map the full 2-stage line with evolution methods between each stage.
How to Obtain Omastar in Let's Go Pikachu & Eevee
Step 1Catch OmanyteCinnabar Island - Pokémon LabLet's Go PikachuGift from NPC Lv.44 WaterLateRevive Helix FossilCinnabar Island - Pokémon LabLet's Go EeveeGift from NPC Lv.44 WaterLateRevive Helix Fossil
Step 2Omastar ✓
You're catching Omanyte first, not Omastar. Omanyte appears at moderate rates in the encounters below. The step cards map the full 2-stage line with evolution methods between each stage.
How to Obtain Omastar in Ultra Sun & Ultra Moon
Step 1Catch OmanyteRoute 8 - Fossil Restoration CenterUltra SunGift from NPC Lv.15 RouteEarlyRevive Helix FossilRoute 8 - Fossil Restoration CenterUltra MoonGift from NPC Lv.15 RouteEarlyRevive Helix Fossil
Step 2Omastar ✓
Swift Swim changes the entire equation for Omastar. The 495 BST doesn't tell the full story. Ranked C-Tier as a wallbreaker.
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.
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.
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