Special
Wallbreaker
55Speed · Slow

Is Omastar Good in Platinum Playthrough?

Omanyte evolves at level 40. Rock/Water gives strong matchups against Flint's all-Fire E4 and Volkner's Electric gym. AbilityShell Armor blocks critical hits. Solid if you're lucky enough to dig up a Helix Fossil.

StrongGoodEvenToughBadSEEETGGEGGGEERoarkGym 1GardeniaGym 2FantinaGym 3MayleneGym 4Crasher WakeGym 5ByronGym 6CandiceGym 7VolknerGym 8OmanyteFossilOmastarEvolveAaronE4BerthaE4FlintE4LucianE4CynthiaChamp*
Roark
Gym 1
Strong

Omanyte resists most of Roark's coverage and hits back hard.

Easy KO
Geodude
Lv 12
RockGround
Rock Head
Stealth RockRock Throw
Easy KO
Onix
Lv 12
RockGround
Rock Head
Stealth RockRock ThrowScreech
Easy KO
Cranidos
Lv 14
Rock
Mold Breaker
HeadbuttPursuitLeer
Gardenia
Gym 2
Even

Omanyte trades roughly evenly with Gardenia's team.

Even
Turtwig
Lv 20
Grass
Overgrow
Grass KnotRazor LeafSunny DayReflect
Risky
Cherrim
Lv 20
Grass
Flower Gift
Grass KnotLeech SeedMagical LeafSafeguard
Risky
Roserade
Lv 22
GrassPoison
Natural Cure
Grass KnotMagical LeafPoison StingStun Spore
Fantina
Gym 3
Even

Omanyte trades roughly evenly with Fantina's team.

Even
Duskull
Lv 24
Ghost
Levitate
Will O WispPursuitShadow SneakFuture Sight
Even
Haunter
Lv 24
GhostPoison
Levitate
Shadow ClawSucker PunchHypnosisConfuse Ray
Risky
Mismagius
Lv 26
Ghost
Levitate
Shadow BallPsybeamMagical LeafConfuse Ray
Maylene
Gym 4
Even

Omanyte trades roughly evenly with Maylene's team.

Even
Meditite
Lv 28
FightingPsychic
Pure Power
Drain PunchConfusionRock TombFake Out
Even
Machoke
Lv 29
Fighting
Guts
Karate ChopRock TombStrengthFocus Energy
Risky
Lucario
Lv 32
FightingSteel
Steadfast
Drain PunchForce PalmMetal ClawBone Rush
Crasher Wake
Gym 5
Tough

Crasher Wake's team hits Omanyte's weaknesses hard.

Even
Gyarados
Lv 33
WaterFlying
Intimidate
WaterfallBrineBiteTwister
Risky
Quagsire
Lv 34
WaterGround
Damp
Mud ShotRock TombWater PulseYawn
Risky
Floatzel
Lv 37
Water
Swift Swim
BrineIce FangCrunchAqua Jet
Byron
Gym 6
Good

Omanyte has the type edge here and should clean up Byron's team.

Even
Magneton
Lv 37
ElectricSteel
Magnet Pull
Flash CannonThunderboltTri AttackMetal Sound
You Win
Steelix
Lv 38
SteelGround
Rock Head
Flash CannonIce FangEarthquakeSandstorm
You Win
Bastiodon
Lv 41
RockSteel
Sturdy
Metal BurstStone EdgeIron DefenseTaunt
Candice
Gym 7
Good

Omanyte has the type edge here and should clean up Candice's team.

You Win
Sneasel
Lv 40
DarkIce
Inner Focus
SlashAerial AceFaint AttackIce Shard
You Win
Piloswine
Lv 40
IceGround
Oblivious
AvalancheStone EdgeEarthquakeHail
Risky
Abomasnow
Lv 42
GrassIce
Snow Warning
AvalancheWood HammerWater PulseFocus Blast
Even
Froslass
Lv 44
IceGhost
Snow Cloak
BlizzardDouble TeamShadow BallPsychic
Volkner
Gym 8
Even

Omanyte trades roughly evenly with Volkner's team.

Even
Jolteon
Lv 46
Electric
Volt Absorb
Thunder WaveCharge BeamIron TailQuick Attack
Even
Raichu
Lv 46
Electric
Static
Charge BeamFocus BlastSignal BeamQuick Attack
Even
Luxray
Lv 48
Electric
Rivalry
Ice FangThunder FangCrunchFire Fang
Even
Electivire
Lv 50
Electric
Motor Drive
Thunder PunchFire PunchQuick AttackGiga Impact
Aaron
Elite Four
Good

Omastar has the type edge here and should clean up Aaron's team.

You Win
Yanmega
Lv 49
BugFlying
Speed Boost
Air SlashBug BuzzU TurnDouble Team
Even
Scizor
Lv 49
BugSteel
Swarm
Iron HeadX ScissorNight SlashQuick Attack
Easy KO
Vespiquen
Lv 50
BugFlying
Pressure
Attack OrderDefend OrderHeal OrderPower Gem
Risky
Heracross
Lv 51
BugFighting
Swarm
MegahornClose CombatNight SlashStone Edge
You Win
Drapion
Lv 53
PoisonDark
Battle Armor
X ScissorCross PoisonIce FangAerial Ace
Bertha
Elite Four
Good

Omastar has the type edge here and should clean up Bertha's team.

Even
Whiscash
Lv 50
WaterGround
Oblivious
Earth PowerAqua TailZen HeadbuttSandstorm
Easy KO
Gliscor
Lv 53
GroundFlying
Hyper Cutter
EarthquakeIce FangFire FangThunder Fang
Easy KO
Golem
Lv 52
RockGround
Rock Head
EarthquakeFire PunchThunder PunchSandstorm
You Win
Rhyperior
Lv 55
GroundRock
Lightning Rod
EarthquakeRock WreckerMegahornAvalanche
You Win
Hippowdon
Lv 52
Ground
Sand Stream
EarthquakeStone EdgeCrunchYawn
Flint
Elite Four
Good

Omastar has the type edge here and should clean up Flint's team.

You Win
Houndoom
Lv 52
DarkFire
Early Bird
FlamethrowerSludge BombDark PulseSunny Day
You Win
Flareon
Lv 55
Fire
Flash Fire
OverheatGiga ImpactQuick AttackWill O Wisp
Even
Rapidash
Lv 53
Fire
Run Away
Flare BlitzSolar BeamBounceSunny Day
You Win
Infernape
Lv 55
FireFighting
Blaze
Flare BlitzThunder PunchMach PunchEarthquake
Even
Magmortar
Lv 57
Fire
Flame Body
FlamethrowerThunderboltSolar BeamHyper Beam
Lucian
Elite Four
Even

Omastar trades roughly evenly with Lucian's team.

Even
Mr Mime
Lv 53
PsychicFairy
Soundproof
PsychicThunderboltReflectLight Screen
Even
Espeon
Lv 55
Psychic
Synchronize
PsychicShadow BallQuick AttackSignal Beam
Even
Bronzong
Lv 54
SteelPsychic
LevitateImmune to Ground attacks
PsychicGyro BallEarthquakeCalm Mind
Even
Alakazam
Lv 56
Psychic
Synchronize
PsychicEnergy BallFocus BlastRecover
Risky
Gallade
Lv 59
PsychicFighting
Steadfast
Drain PunchPsycho CutLeaf BladeStone Edge
Cynthia
Champion
Even

Omastar trades roughly evenly with Cynthia's team.

Even
Spiritomb
Lv 58
GhostDark
Pressure
Dark PulsePsychicSilver WindShadow Ball
Even
Roserade
Lv 58
GrassPoison
Natural Cure
Energy BallSludge BombToxicExtrasensory
Even
Togekiss
Lv 60
FairyFlying
Hustle
Air SlashAura SphereWater PulseShock Wave
Risky
Lucario
Lv 60
FightingSteel
Steadfast
Aura SphereExtreme SpeedShadow BallStone Edge
Risky
Milotic
Lv 58
Water
Marvel Scale
SurfIce BeamMirror CoatDragon Pulse
Even
Garchomp
Lv 62
DragonGround
Sand Veil
Dragon RushEarthquakeFlamethrowerGiga Impact
Fossil Omanyte
Post-game only
Type
RockWater
Tier
E

Omanyte can be revived from a fossil obtained on Oreburgh City. Revive Helix Fossil. Revive from Helix Fossil at the Mining Museum. Found in The Underground after National Dex.

View Omanyte locations

Recommended Moves
    • LV 28WaterBrine98100%10
  • After Maylene
    • TUTORWaterDive120100%10
    • LV 37RockAncient Power90100%5
  • After Crasher Wake
    • HM03WaterSurf135100%15
  • After Byron
    • TM80RockRock Slide11390%10
    • TM13IceIce Beam90100%10
  • After Volkner
    • HM07WaterWaterfall120100%15
    • LV 52WaterHydro Pump16580%5
Evolve Omanyte to Omastar
Level 40
Type
RockWater
Tier
A

Your Omanyte should hit Level 40 before you reach Aaron, at typical leveling pace.

Recommended Moves
  • After Fantina
    • TM15NormalHyper Beam15090%5
  • After Maylene
    • TUTORWaterDive120100%10
    • TM68NormalGiga Impact15090%5
  • After Crasher Wake
    • HM03WaterSurf135100%15
  • After Byron
    • TM80RockRock Slide11390%10
  • After Volkner
    • TM71RockStone Edge15080%5
    • HM07WaterWaterfall120100%15
    • LV 67WaterHydro Pump16580%5

How to Get Omastar in Platinum

Omastar doesn't appear wild. Catch Omanyte instead, it shows up but it's a rare spawn. Evolve it at level 40 to get Omastar. The 2-stage line is mapped in the step cards below.

How to Obtain Omastar in Pt

  1. Omanyte
    Step 1Catch Omanyte
    Oreburgh City - Mining Museum
    Lv.20Gift from NPC
    Limited
    Revive Helix Fossil
  2. Omastar
    Step 2Omastar
    BREEDING
    Available
    Leave a compatible parent at the Pokemon Day Care to receive a Omastar egg.

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.

Omastar Weakness and Resistance Chart
DamageTypes
4x (Critical)Grass
2x (Weak)Electric, Fighting, Ground
0.5x (Resist)Normal, Ice, Poison, Flying
0.25x (Resist)Fire
Gen IV Type Chart
  • Fairy type does not exist — Dragon has fewer checks
  • Physical / Special split now per-move (introduced Gen IV)

What is Omastar Weak Against

Vulnerable
4Weak
5Resist
0Immune
Score-4
4xCritical
¼xResist
0xImmune
None

What is Omastar Strong Against

6Strong
0Resisted
0Immune
Score+6
½xResisted
None
0xImmune
None

Best Pokemon Against Omastar

Omastar Evolutions

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

2 Forms
Stat Comparison 2 Stages
Omanyte
RockWater
Omastar
RockWater
HP
35
70+35
ATK
40
60+20
DEF
100
125+25
SP.ATK
90
115+25
SP.DEF
55
70+15
SPE
35
55+20
BST
355D-Tier
495C-Tier+140
ROLE
Trick Room
Wallbreaker
TYPE
Special
Special

Breeding

Moderate

Breed with Omastar to get Omanyte eggs using 69 partners from the Water1 and Water3 egg groups. Notable egg moves include Aurora Beam, Bubble Beam, Haze and 7 more.

Egg Groups
Gender
87.5%12.5%
Hatch Time
30 cycles·7,710 steps
Moderate~8 min with Flame Body
Egg Moves
10moves
Breed With (best first)
azumarillblastoisegolduckferaligatrkingdraswampertdrapionslowbroslowkingoctilleryludicolodewgong

Pt Omastar Best Moveset

125 Defense and 115 Sp. Atk create a strong defensive and offensive base even without rain. The moveset fires special Rock and Water attacks at high power, and AbilityShell Armor blocks critical hits for consistent durability. Rain and AbilitySwift Swim push it further.

Best Build

Experimental
Special Sweeper
Ability
Swift Swim
Item
Life OrbPOWER
Best Nature for Omastar
Modest+SPA

Omastar best EVs are Sp. Atk and Speed

EVs

Special Sweeper Moveset

  • SurfSTAB
  • Ice Beam
  • Rain DanceSTAB
  • Hidden Power Grass

Moves List

You'll want to breed for Aurora Beam and Bubble Beam 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

Lv 1
Bite
D6010025Dark
Lv 1
Constrict
1010035Normal
Lv 1
Withdraw
40Water
Lv 7
Bite
D6010025Dark
Lv 10
Water Gun
6010025Water
Lv 16
Rollout
459020Rock
Lv 19
Leer
10030Normal
Lv 25
Mud Shot
C559515Ground
Lv 28
Brine
C9710010Water
Lv 34
Protect+4
C10Normal
Lv 37
Ancient Power
A901005Rock
Lv 40
Spike Cannon
2010015Normal
Lv 48
Tickle
10020Normal
Lv 56
Rock Blast
D379010Rock
Lv 67
Hydro Pump
B180805Water

TM Moves

TM
TM45
Attract
10015Normal
TM14
Blizzard
C120705Ice
TM55
Brine
C9710010Water
TM78
Captivate
10020Normal
TM32
Double Team
15Normal
TM58
Endure+4
C10Normal
TM42
Facade
D7010020Normal
TM21
Frustration
D10020Normal
TM68
Giga Impact
C150905Normal
TM74
Gyro Ball
D1005Steel
TM07
Hail
D10Ice
TM10
Hidden Power
C6010015Normal
TM15
Hyper Beam
B150905Normal
TM13
Ice Beam
B9510010Ice
TM83
Natural Gift
D10015Normal
TM17
Protect+4
C10Normal
TM18
Rain Dance
B5Water
TM44
Rest
C10Psychic
TM27
Return
D10020Normal
HM08
Rock Climb
908520Normal
TM69
Rock Polish
C20Rock
TM80
Rock Slide
C1129010Rock
HM06
Rock Smash
D4010015Fighting
TM39
Rock Tomb
D909510Rock
TM37
Sandstorm
10Rock
TM43
Secret Power
7010020Normal
TM82
Sleep Talk
C10Normal
TM76
Stealth Rock
C20Rock
TM71
Stone Edge
C150805Rock
TM90
Substitute
C10Normal
HM03
Surf
B14210015Water
TM87
Swagger
9015Normal
TM46
Thief
D6010025Dark
TM06
Toxic
C8510Poison
TM03
Water Pulse
C9010020Water
HM07
Waterfall
C12010015Water

Egg Moves

Egg
Egg
Aurora Beam
6510020Ice
Egg
Bubble Beam
9710020Water
Egg
Haze
D30Ice
Egg
Knock Off
D6510020Dark
Egg
Rock Slide
C1129010Rock
Egg
Slam
807520Normal
Egg
Spikes
C20Ground
Egg
Supersonic
5520Normal
Egg
Toxic Spikes
C20Poison
Egg
Wring Out
1005Normal

Tutor Moves

Tut
Tutor
Ancient Power
A901005Rock
Tutor
Dive
C12010010Water
Tutor
Earth Power
A9010010Ground
Tutor
Icy Wind
C559515Ice
Tutor
Iron Defense
C15Steel
Tutor
Knock Off
D6510020Dark
Tutor
Rollout
459020Rock
Tutor
Snore
D4010015Normal

Base Stats

Base Stats
Above
HP70
C
Attack60
C
Defense125
A
Sp. Atk115
B
Sp. Def70
C
Speed55
D
Total495
Details
Catch Rate
Challenging45 / 255
Growth Rate
Medium Fast1M XP
Height1.0 m
Weight35.0 kg
Base XP173
Abilities
Swift Swim
Doubles Speed during rain.
Shell Armor
Protects against critical hits.
EV Yield
HPAtkDef+2SpASpDSpe
Defense training target
Pokedex Entry

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

Pokemon Platinum

Omastar Platinum Guide

  • In Platinum, Swift Swim changes the entire equation for Omastar. The 495 BST doesn't tell the full story. Ranked C-Tier as a wallbreaker. Surf with Life Orb is the standard set.

  • In Platinum, watch for Exeggutor (Grass), Raikou (Electric), and Machamp (Fighting) when using Omastar. They all hit it super-effectively with STAB. Exeggutor is the most dangerous since Grass moves deal 4x damage. Ground-type attackers are also a problem.

  • Swift Swim is what you want on Omastar. Every competitive set worth running is built with that ability in mind. The alternatives (Shell 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.

  • In Platinum, run Surf, Ice Beam, Raindance, and Hiddenpowergrass on Omastar. Surf is the most common pick at 0% usage. Surf provides reliable STAB damage.

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.

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