Omastar (#0139) – Stats, Moves, Evolution & Competitive Sets

Base stats

HP70130–177250–344

Atk6058–123112–240

Def125117–194229–383

SpA115108–183211–361

SpD7067–134130–262

Spe5554–117103–229

Total495Higher than 67% of all Pokémon

Ranges: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 2 Def.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature

Speed tiers

Speed at Lv 50 in Pokémon Champions (base 55). Scarf and Tailwind use the Max+ value.

Max+117Max107No SP75Min67Scarf175Tailwind234

At max Speed, Omastar outspeeds 11 of the 30 most used Pokémon in Champions VGC.

Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Type matchups

Weak to

Grass4×Electric2×Fighting2×Ground2×

Resists

Fire¼×Flying½×Ice½×Normal½×Poison½×

Takes normal damage from 9 types

RockBugGhostSteelWaterPsychicDragonDarkFairy

Abilities

Swift Swim
Doubles Speed during rain.
Shell Armor
Protects against critical hits.
Weak ArmorHidden ability
Raises Speed and lowers Defense by one stage each upon being hit by a physical move.

Competitive

National DexRU

Not used in the tracked Showdown formats this month.

Evolution

#0138OmanyteRockWater
1. Level 40#0139OmastarRockWater

Moves

Game Sort Type

Level up 16

EvoCrunchHas a 20% chance to lower the target’s Defense by one stage.DarkPhys80100%15

1BindPrevents the target from fleeing and inflicts damage for 2-5 turns.NormalPhys1585%20

1CrunchHas a 20% chance to lower the target’s Defense by one stage.DarkPhys80100%15

1RolloutPower doubles every turn this move is used in succession after the first, resetting after five turns.RockPhys3090%20

1Sand AttackLowers the target’s accuracy by one stage.GroundStatus—100%15

1WithdrawRaises the user’s Defense by one stage.WaterStatus——40

15Water GunInflicts regular damage with no additional effect.WaterSpec40100%25

20LeerLowers the target’s Defense by one stage.NormalStatus—100%30

25Mud ShotHas a 100% chance to lower the target’s Speed by one stage.GroundSpec5595%15

30Ancient PowerHas a 10% chance to raise all of the user’s stats by one stage.RockSpec60100%5

35BrineHas double power against Pokémon that have less than half their max HP remaining.WaterSpec65100%10

43ProtectPrevents any moves from hitting the user this turn.NormalStatus——10

49Rock BlastHits 2-5 times in one turn.RockPhys2590%10

56SurfInflicts regular damage and can hit Dive users.WaterSpec90100%15

63Shell SmashRaises user’s Attack, Special Attack, and Speed by two stages. Lower user’s Defense and Special Defense by one stage.NormalStatus——15

70Hydro PumpInflicts regular damage with no additional effect.WaterSpec11080%5

TM / HM / TR 30

TM49ScaldHas a 30% chance to burn the target.WaterSpec80100%15

HM03SurfInflicts regular damage and can hit Dive users.WaterSpec90100%15

HM06Rock SmashHas a 50% chance to lower the target’s Defense by one stage.FightingPhys40100%15

HM07WaterfallHas a 20% chance to make the target flinch.WaterPhys80100%15

HM08Rock ClimbHas a 20% chance to confuse the target.NormalPhys9085%20

TMIce BeamHas a 10% chance to freeze the target.IceSpec90100%10

TMBlizzardHas a 10% chance to freeze the target.IceSpec11070%5

TMHyper BeamUser foregoes its next turn to recharge.NormalSpec15090%5

TMDouble TeamRaises the user’s evasion by one stage.NormalStatus——15

TMRestUser sleeps for two turns, completely healing itself.PsychicStatus——5

TMRock SlideHas a 30% chance to make the target flinch.RockPhys7590%10

TMSubstituteTransfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.NormalStatus——10

TMThiefTakes the target’s item.DarkPhys60100%25

TMProtectPrevents any moves from hitting the user this turn.NormalStatus——10

TMSandstormChanges the weather to a sandstorm for five turns.RockStatus——10

TMEndurePrevents the user’s HP from lowering below 1 this turn.NormalStatus——10

TMSwaggerRaises the target’s Attack by two stages and confuses the target.NormalStatus—85%15

TMAttractTarget falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.NormalStatus—100%15

TMSleep TalkRandomly uses one of the user’s other three moves. Only works if the user is sleeping.NormalStatus——10

TMRain DanceChanges the weather to rain for five turns.WaterStatus——5

TMHailChanges the weather to a hailstorm for five turns.IceStatus——10

TMFacadePower doubles if user is burned, paralyzed, or poisoned.NormalPhys70100%20

TMRock TombHas a 100% chance to lower the target’s Speed by one stage.RockPhys6095%15

TMWater PulseHas a 20% chance to confuse the target.WaterSpec60100%20

TMGyro BallPower raises when the user has lower Speed, up to a maximum of 150.SteelPhys—100%5

TMBrineHas double power against Pokémon that have less than half their max HP remaining.WaterSpec65100%10

TMRock PolishRaises the user’s Speed by two stages.RockStatus——20

TMGiga ImpactUser foregoes its next turn to recharge.NormalPhys15090%5

TMStone EdgeHas an increased chance for a critical hit.RockPhys10080%5

TMStealth RockCauses damage when opposing Pokémon switch in.RockStatus——20

Pokédex entries

Category: Spiral Pokémon
Debut: Kanto · Red & Green (JP)
Color: Blue
Shape
Habitat: Sea
Pal Park area: Sea

Kanto#139Original Johto#221Updated Johto#226Updated Alola#228Updated Akala#129Let’s Go Kanto#139Crown Tundra#124

Omastar’s sharp fangs could crush rock, but the Pokémon can attack only the prey that come within reach of its tentacles.
Shield
Weighed down by a large and heavy shell, Omastar couldn’t move very fast. Some say it went extinct because it was unable to catch food.
Sword
Its sharp beak rings its mouth. Its shell was too big for it to move freely, so it became extinct.
Let’s Go, Pikachu! · Let’s Go, Eevee!
It wraps its prey in its tentacles to immobilize them and then finishes them off with its sharp fangs.
Ultra Moon
Its heavy shell is thought to be the reason this ancient Pokémon died out. It’s apparently a distant ancestor of Octillery.
Ultra Sun
It is thought that this Pokémon became extinct because its spiral shell grew too large.
Diamond · Pearl · Platinum · Black · White · Black 2 · White 2
Despite having strong fangs and tentacles, it went extinct when its heavy shell made it unable to catch prey.
LeafGreen
Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.
FireRed · X
An OMASTAR uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large, making its movements slow and ponderous.
Emerald
OMASTAR uses its tentacles to capture its prey. It is believed to have become extinct because its shell grew too large and heavy, causing its movements to become too slow and ponderous.
Ruby · Sapphire · Omega Ruby · Alpha Sapphire
Its heavy shell allowed it to reach only nearby food. This could be the reason it is extinct.
Crystal
Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.
Silver · SoulSilver · Y
Apparently, it cracked SHELLDER's shell with its sharp fangs and sucked out the insides.
Gold · HeartGold
Sharp beaks ring its mouth. Its shell was too big for it to move freely, so it became extinct.
Yellow
A prehistoric Pokémon that died out when its heavy shell made it impossible to catch prey.
Red · Blue

Names around the world

Japanese: オムスター
Japanese (romaji): Omstar
Korean: 암스타
Chinese (Traditional): 多刺菊石獸
Chinese (Simplified): 多刺菊石兽
French: Amonistar
German: Amoroso
Spanish: Omastar
Italian: Omastar

Sprites

Tap any sprite to show it on the Pokédex above. ▶ marks official animations; Gen VIII–IX models are large, so they load only when you tap them.

Official artwork

3D models

Generation I

Generation II

Generation III

Generation IV

Generation V

Generation VI

Generation VII

Generation VIII · animated models

Training

EV yield: 2 Def
Catch rate: 45 ≈5.9% with a Poké Ball at full HP
Base friendship: 70
Base experience: 173
Growth rate: Medium

Breeding

Egg groups: Water 1Water 3
Gender: ♂ 87.5%♀ 12.5%
Hatch time: 30 egg cycles ≈7,905 steps (Gen IV–VII)

Where to find

Sword: The Crown Tundra 7 areas

Ballimere Lake (Max Den N)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Frigid Sea (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Giant's Bed (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Giant's Bed (Max Den P)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Giant's Foot (Max Den B)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Roaring-Sea CavesSpecial overworld spawn in a fixed location. · Lv 68
Snowslide Slope (Max Den I)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–60