No. 139 · Generation 1
Omastar
Shows up lost in Golden Canyon from floor 51.
Where to find it
| Route | Floors | Shows up |
|---|---|---|
 Golden CanyonCanyon Sinkholes | From floor 51 | Frequent |
 Gloom MarshDrowned Mire | From floor 51 | Frequent |
 Forgotten RuinsSealed Crypt | Floors 51 – 75 | Frequent |
| Forgotten RuinsSealed Crypt | From floor 76 | Occasional |
 Ember CraterMagma Chamber | From floor 51 | Frequent |
 Frost GrottoDeep Glacier | From floor 51 | Frequent |
 Sunken ReefAbyssal Trench | From floor 51 | Frequent |
Frequency compares it with the other lost Pokémon on those floors.
How to get it
RescueFind it lost on the expedition and return with the Escape Rope. If the party faints or abandons first, it is lost, unless you already had it when you beat a guardian.
Poké BallIt can come out when you open a Poké Ball at the haven.
Day CareLeave one of its species at the Chansey Day Care with another that shares a type, or with Ditto. The egg is the species of one of the two.
Evolution
OmanyteAttacks
It has its type's basic attack, which fires on its own, and two specials you pick before leaving.
BasicRock ThrowFires on its own at the nearest enemy, and the shot follows it.
SpecialRock SlideBursts at the spot you aim at.
SpecialHardenCovers you with a shield for a few seconds: you take less damage and can't be stunned.
SpecialStealth RockPlaces a trap that goes off when an enemy steps on it.
SpecialRolloutLaunches you towards where you aim and damages whatever you pass through.
SpecialWater PulseBursts at the spot you aim at. Leaves the enemy soaked.
SpecialWithdrawCovers you with a shield for a few seconds: you take less damage and can't be stunned.
SpecialBubble BeamHits everything in front of you in a line. Leaves the enemy soaked.
SpecialAqua JetLaunches you towards where you aim and damages whatever you pass through. Leaves the enemy soaked.UltimateMeteor ShowerIt charges as you fight. It wipes out the enemies around you.