PokeTools

Omastar.

national dex #139 · gen I
BST 495 · rock / water
Omastar official artwork
rockwater
#139 · gen I
Profile
HP
70
ATK
60
DEF
125
SPA
115
SPD
70
SPE
55
BST 495 · best Defense 125 · worst Speed 55 · meters scale to 200

Omastar is weak to Electric, Grass, Fighting, Ground and resists Normal, Fire, Ice, Poison, Flying.

Typingrockwater
AbilitiesSwift Swim, Shell Armor, Weak Armor
Height, weight1.0 m / 35.0 kg
Catch rate45 / 255
Egg groupsWater1, Water3
Previous
#138omanyte
Dex position
#139 of 1025
Jump to
Next
#140kabuto

Omastar base stats

BST 495 · ranges at level 100
StatBaseDistributionMin lv 100Max lv 100
HP70250344
Atk60112240
Def125229383
SpA115211361
SpD70130262
Spe55103229
BST495bst bar scales to 720, the series maximum
min = 0 IVs, 0 EVs, hindering nature · max = 31 IVs, 252 EVs, boosting natureEV yield 2 Def

Omastar weaknesses and resistances

damage taken · Rock / Water dual typing
nor½
fir¼
wat1
ele2
gra4
ice½
fig2
poi½
gro2
fly½
psy1
bug1
roc1
gho1
dra1
dar1
ste1
fai1
Weak to
Electric, Grass (4x), Fighting, Ground
Resists
Normal, Fire (¼x), Ice, Poison, Flying
Immune to
nothing

Omastar abilities

3 total · 1 hidden
Swift SwimDoubles Speed during rain.
Shell ArmorProtects against critical hits.
Weak ArmorhiddenRaises Speed and lowers Defense by one stage each upon being hit by a physical move.

Omastar evolution line

2 stages

Best Omastar moves

gen 8 learnset · sorted by base power
Best STAB movessame type attack bonus, 1.5x power
rockMeteor BeamSPEC120
waterHydro PumpSPEC110
rockStone EdgePHYS100
waterSurfSPEC90
Best coverage movesoff-type, for hitting weaknesses
normalGiga ImpactPHYS150
normalHyper BeamSPEC150
iceBlizzardSPEC110
groundEarth PowerSPEC90

Omastar moves

gen 8 · 83 moves · 16 level-up · 49 TM/HM · 18 tutor
50 moves · Omastar appears in 14 games
BindL1CrunchL1Sand AttackL1WithdrawL4RolloutL16Water GunL19Mud ShotL25BrineL35Rock SlideL37LeerL39ProtectL43Ancient PowerL55Rock BlastL56SurfL56Shell SmashL67Hydro PumpL75AttractTMBlizzardTMBody SlamTMDiveTMEarth PowerTMEndureTMFacadeTMGiga ImpactTMGyro BallTMHailTMHyper BeamTMIce BeamTMIcy WindTMIron DefenseTMLiquidationTMMeteor BeamtutorMuddy WaterTMPin MissileTMRain DanceTMRestTMRock TombTMRoundTMSandstormTMScaldTMSleep TalkTMSnoreTMSpikesTMStealth RockTMStone EdgeTMSubstituteTMThiefTMToxic SpikesTMWaterfallTMWhirlpoolTM
MoveTypeCatPowerAccuracyPPMethod
BindnormalPHYS1585%20Level 1
Sand AttackgroundSTAT-100%15Level 1
CrunchdarkPHYS80100%15Level 1
WithdrawwaterSTAT--40Level 4
RolloutSTABrockPHYS3090%20Level 16
Water GunSTABwaterSPEC40100%25Level 19
Mud ShotgroundSPEC5595%15Level 25
BrineSTABwaterSPEC65100%10Level 35
Rock SlideSTABrockPHYS7590%10Level 37
LeernormalSTAT-100%30Level 39
ProtectnormalSTAT--10Level 43
Ancient PowerSTABrockSPEC60100%5Level 55
SurfSTABwaterSPEC90100%15Level 56
Rock BlastSTABrockPHYS2590%10Level 56
Shell SmashnormalSTAT--15Level 67
Hydro PumpSTABwaterSPEC11080%5Level 75
AttractnormalSTAT-100%15TM / HM
BlizzardiceSPEC11070%5TM / HM
Body SlamnormalPHYS85100%15TM / HM
BrineSTABwaterSPEC65100%10TM / HM
CrunchdarkPHYS80100%15TM / HM
DiveSTABwaterPHYS80100%10TM / HM
Double TeamnormalSTAT--15TM / HM
Earth PowergroundSPEC90100%10TM / HM
EndurenormalSTAT--10TM / HM
FacadenormalPHYS70100%20TM / HM
Giga ImpactnormalPHYS15090%5TM / HM
Gyro BallsteelPHYS-100%5TM / HM
HailiceSTAT--10TM / HM
Hydro PumpSTABwaterSPEC11080%5TM / HM
Hyper BeamnormalSPEC15090%5TM / HM
Ice BeamiceSPEC90100%10TM / HM
Icy WindiceSPEC5595%15TM / HM
Iron DefensesteelSTAT--15TM / HM
LiquidationSTABwaterPHYS85100%10TM / HM
Mud ShotgroundSPEC5595%15TM / HM
Muddy WaterSTABwaterSPEC9085%10TM / HM
Pin MissilebugPHYS2595%20TM / HM
ProtectnormalSTAT--10TM / HM
Rain DancewaterSTAT--5TM / HM
RestpsychicSTAT--5TM / HM
Rock BlastSTABrockPHYS2590%10TM / HM
Rock ClimbnormalPHYS9085%20TM / HM
Rock PolishrockSTAT--20TM / HM
Rock SlideSTABrockPHYS7590%10TM / HM
Rock SmashfightingPHYS40100%15TM / HM
Rock TombSTABrockPHYS6095%15TM / HM
RolloutSTABrockPHYS3090%20TM / HM
RoundnormalSPEC60100%15TM / HM
SandstormrockSTAT--10TM / HM
ScaldSTABwaterSPEC80100%15TM / HM
Sleep TalknormalSTAT--10TM / HM
SnorenormalSPEC50100%15TM / HM
SpikesgroundSTAT--20TM / HM
Stealth RockrockSTAT--20TM / HM
Stone EdgeSTABrockPHYS10080%5TM / HM
SubstitutenormalSTAT--10TM / HM
SurfSTABwaterSPEC90100%15TM / HM
SwaggernormalSTAT-85%15TM / HM
ThiefdarkPHYS60100%25TM / HM
Toxic SpikespoisonSTAT--20TM / HM
Water GunSTABwaterSPEC40100%25TM / HM
Water PulseSTABwaterSPEC60100%20TM / HM
WaterfallSTABwaterPHYS80100%15TM / HM
WhirlpoolSTABwaterSPEC3585%15TM / HM
Ancient PowerSTABrockSPEC60100%5Tutor
BindnormalPHYS1585%20Tutor
Body SlamnormalPHYS85100%15Tutor
DiveSTABwaterPHYS80100%10Tutor
Earth PowergroundSPEC90100%10Tutor
EndurenormalSTAT--10Tutor
Ice BeamiceSPEC90100%10Tutor
Icy WindiceSPEC5595%15Tutor
Iron DefensesteelSTAT--15Tutor
Meteor BeamSTABrockSPEC12090%10Tutor
Rock SlideSTABrockPHYS7590%10Tutor
RolloutSTABrockPHYS3090%20Tutor
Sleep TalknormalSTAT--10Tutor
SnorenormalSPEC50100%15Tutor
Stealth RockrockSTAT--20Tutor
SubstitutenormalSTAT--10Tutor
SwaggernormalSTAT-85%15Tutor
Water PulseSTABwaterSPEC60100%20Tutor

Omastar Pokédex entries

8 generations · newest first
Generation VIII2 entries
Sword

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.

Shield

Omastar’s sharp fangs could crush rock, but the Pokémon can attack only the prey that come within reach of its tentacles.

Generation VII3 entries
Ultra Sun

Its heavy shell is thought to be the reason this ancient Pokémon died out. It’s apparently a distant ancestor of Octillery.

Ultra Moon

It wraps its prey in its tentacles to immobilize them and then finishes them off with its sharp fangs.

Let's Go Pikachu, Let's Go Eevee

Its sharp beak rings its mouth. Its shell was too big for it to move freely, so it became extinct.

Generation VI3 entries
X

Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.

Y

Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.

Omega Ruby, Alpha Sapphire

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.

Generation V1 entry
Black, White, Black 2, White 2

It is thought that this Pokémon became extinct because its spiral shell grew too large.

Generation IV3 entries
Diamond, Pearl, Platinum

It is thought that this Pokémon became extinct because its spiral shell grew too large.

HeartGold

Apparently, it cracked SHELLDER’s shell with its sharp fangs and sucked out the insides.

SoulSilver

Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.

Generation III4 entries
Ruby, Sapphire

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.

Emerald

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.

FireRed

Its tentacles are highly developed as if they are hands and feet. As soon as it ensnares prey, it bites.

LeafGreen

Despite having strong fangs and tentacles, it went extinct when its heavy shell made it unable to catch prey.

Generation II3 entries
Gold

Apparently, it cracked SHELLDER's shell with its sharp fangs and sucked out the insides.

Silver

Once wrapped around its prey, it never lets go. It eats the prey by tearing at it with sharp fangs.

Crystal

Its heavy shell allowed it to reach only nearby food. This could be the reason it is extinct.

Generation I2 entries
Red, Blue

A prehistoric POKéMON that died out when its heavy shell made it impossible to catch prey.

Yellow

Sharp beaks ring its mouth. Its shell was too big for it to move freely, so it became extinct.

Omastar species data

gen I species · breeding and training
Species
GenerationI (Kanto)
ColorBlue
ShapeTentacles
HabitatSea
Height1.0 m (3'03")
Weight35.0 kg (77.2 lbs)
Training and breeding
Capture rate45 (17.6%)
Growth rateMedium
Gender ratio87.5% Male / 12.5% Female
Egg groupsWater1, Water3
Hatch counter30 cycles, 7,936 steps
Base experience173
EV yield2 Def
Regional dex numbers
National#139
Kanto#139
Johto#221
Johto (HGSS)#226
Alola (USUM)#228
Akala (USUM)#129
Let's Go Kanto#139
Crown Tundra#124
Read outfrom base stats
Battle roleSpecial attacker60 Atk / 115 SpA
Best statDefense 125excellent
Speed tier55 Speaverage speed
Defensive load4 weak / 5 resistno immunities
Catch difficulty45 / 255hard, about 17.6% per ball

About Omastar

Omastar is a Rock and Water-type Pokémon introduced in Generation 1 (Kanto). 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. Omastar stands 1.0 m (3'03") tall and weighs 35.0 kg (77.2 lbs), making it a small Pokémon.

Omastar base stats

Omastar has a base stat total of 495, which is moderate, typical of a fully-evolved Pokémon. Its highest stat is Defense at 125 (excellent), while its lowest is Speed at 55 (below average). Omastar excels as a special attacker. Omastar is average speed with a base Speed of 55.

Omastar weaknesses and resistances

As a Rock and Water-type, Omastar is weak to Electric, Grass (4x), Fighting, Ground-type moves, resists Normal, Fire (¼x), Ice, Poison, Flying-type attacks. This gives Omastar 4 weaknesses, 5 resistances, and 0 immunities.

Omastar abilities

Omastar's abilities include Swift Swim, Shell Armor, Weak Armor. Swift Swim doubles Speed during rain.. Shell Armor protects against critical hits. Its Hidden Ability is Weak Armor, which raises Speed and lowers Defense by one stage each upon being hit by a physical move.

Omastar moves and learnset

Omastar can learn 83 moves in Generation 8, including 16 by leveling up, 49 via TM/HM, and 18 from move tutors. Its strongest STAB moves include Meteor Beam (Rock, 120 power), Hydro Pump (Water, 110 power), Stone Edge (Rock, 100 power), Surf (Water, 90 power). For coverage, Omastar can learn Giga Impact (Normal), Hyper Beam (Normal), Blizzard (Ice).

Training Omastar

With a capture rate of 45 (17.6%), Omastar can be quite challenging to catch in the wild. Defeating Omastar yields 2 Defense EVs. It has a medium growth rate and requires approximately 7,936 steps to hatch from an Egg. Omastar belongs to the Water1 and Water3 egg groups. Omastar is part of a 2-stage evolution line (Omanyte → Omastar).

Use the tools on the right to calculate damage, optimize EVs, build teams, and more with Omastar. Check the damage calculator to find the best moves against Omastar, or use the team builder to see how Omastar fits into your squad.

Tools for Omastar
Damage calculatorDamage output and defensive matchupsCatch rate calculatorOdds for any ball, status and HPStat calculatorReal stats from IVs, EVs and natureIV calculatorWork backwards from in-game numbersCompare statsSide by side against any rivalTeam builderBuild a team around this speciesEV optimizerOptimize EV spreads for competitive playCoverage solverFind the best type coverage movesWhere to catchEncounter locations across gamesWeakness chartWhat Rock types take damage fromType chartThe full 18x18 effectiveness table
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