Accent Image to accompany hero

Omastarin Pokémon Modern Emerald

rockwater

Pokédex Entry

Spiral Pokémon

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.

Omastar in Pokémon Modern Emerald

Omastar is #139 in the Pokédex for Pokémon Modern Emerald. This page covers its rock/water typing, base stats, abilities, level-up and TM/HM moves, evolution chain, and where to find it.

Front
omastar sprite
Normal
omastar sprite
Shiny
omastar sprite
Animated
omastar sprite
Shiny Animated
Back
omastar sprite
Normal
omastar sprite
Shiny
Type
RockWater
Dex
#139
Abilities
Swift Swim(Primary)

Raises Speed in rain.

Shell Armor(Secondary)

Blocks critical hits.

Growth Rate
mediumfast
Gender Ratio
87.5% Male, 12.5% Female
Egg Groups
water1, water3
Hatch Rate
Medium Fast (20 cycles)
Catch Rate
45
pokeball
Poké Ball5.3%
greatball
Great Ball7.5%
ultraball
Ultra Ball8.9%
Base Exp
199
EV Yield
2 Defense
Wild Held Items
None
Weak To
electric ×2grass ×4fighting ×2ground ×2
Resists
normal ×0.5fire ×0.25ice ×0.5poison ×0.5flying ×0.5

How to Obtain

Omastar has no wild encounters recorded in this game. Evolve omanyte to get one.

Level Up Moves (16)

ConstrictLevel: 1normal
PWR25ACC100PP35
Constricts to inflict pain. May lower Speed.
WithdrawLevel: 1water
PWR0ACC0PP40
Withdraws the body into its hard shell to raise Defense.
BindLevel: 1normal
PWR15ACC85PP20
Binds and squeezes the foe for 2 to 5 turns.
CrunchLevel: 1dark
PWR80ACC100PP15
Crunches with sharp fangs. May lower Defense.
BiteLevel: 13dark
PWR60ACC100PP25
Bites with vicious fangs. May cause flinching.
RolloutLevel: 16rock
PWR30ACC90PP20
An attack lasting 5 turns with rising intensity.
Water GunLevel: 19water
PWR40ACC100PP25
Squirts water to attack the foe.
Mud ShotLevel: 25ground
PWR55ACC95PP15
Hurls mud at the foe and reduces Speed.
LeerLevel: 31normal
PWR0ACC100PP30
Frightens the foe with a leer to lower Defense.
Earth PowerLevel: 35ground
PWR90ACC100PP10
Makes the ground erupt with power. May lower Sp. Def.
ProtectLevel: 37normal
PWR0ACC0PP10
Evades attack, but may fail if used in succession.
Spike CannonLevel: 40normal
PWR20ACC100PP15
Launches sharp spikes that strike 2 to 5 times.
TickleLevel: 46normal
PWR0ACC100PP20
Makes the foe laugh to lower Attack and Defense.
Ancient PowerLevel: 55rock
PWR60ACC100PP5
An attack that may raise all stats.
Rock BlastLevel: 56rock
PWR25ACC90PP10
Hurls boulders at the foe 2 to 5 times in a row.
Hydro PumpLevel: 65water
PWR120ACC80PP5
Blasts water at high power to strike the foe.
Related Guides

Egg Moves (8)

Bubble Beamwater
PWR65ACC100PP20
Forcefully sprays bubbles that may lower Speed.
Muddy Waterground
PWR90ACC85PP10
Attacks with muddy water. May lower accuracy.
Aurora Beamice
PWR65ACC100PP20
Fires a rainbow-colored beam that may lower Attack.
Slamnormal
PWR80ACC75PP20
Slams the foe with a long tail, vine, etc.
Supersonicnormal
PWR0ACC55PP20
Emits bizarre sound waves that may confuse the foe.
Hazeice
PWR0ACC0PP30
Creates a black haze that eliminates all stat changes.
Rock Sliderock
PWR75ACC90PP10
Large boulders are hurled. May cause flinching.
Spikesground
PWR0ACC0PP20
Sets spikes that hurt a foe switching in.
Related Guides

TM/HM Moves (23)

Water Pulsewater
PWR60ACC100PP20TM03
Attacks with ultrasonic waves. May confuse the foe.
Toxicpoison
PWR0ACC70PP10TM06
Poisons the foe with an intensifying toxin.
Hailice
PWR0ACC0PP10TM07
Summons a hailstorm that strikes every turn.
Hidden Powernormal
PWR60ACC100PP15TM10
The effectiveness varies with the user.
Ice Beamice
PWR90ACC100PP10TM13
Blasts the foe with an icy beam that may freeze it.
Blizzardice
PWR110ACC70PP5TM14
Hits the foe with an icy storm that may freeze it.
Hyper Beamnormal
PWR150ACC90PP5TM15
Powerful, but leaves the user immobile the next turn.
Protectnormal
PWR0ACC0PP10TM17
Evades attack, but may fail if used in succession.
Rain Dancewater
PWR0ACC0PP5TM18
Boosts the power of Water- type moves for 5 turns.
Frustrationnormal
PWR1ACC100PP20TM21
An attack that is stronger if the Trainer is disliked.
Returnnormal
PWR1ACC100PP20TM27
An attack that increases in power with friendship.
Double Teamnormal
PWR0ACC0PP15TM32
Creates illusory copies to raise evasiveness.
Sandstormrock
PWR0ACC0PP10TM37
Causes a sandstorm that rages for several turns.
Rock Tombrock
PWR60ACC95PP15TM39
Stops the foe from moving with rocks and cuts Speed.
Facadenormal
PWR70ACC100PP20TM42
Boosts Attack when burned, paralyzed, or poisoned.
Secret Powernormal
PWR70ACC100PP20TM43
An attack with effects that vary by location.
Restpsychic
PWR0ACC0PP5TM44
The user sleeps for 2 turns, restoring HP and status.
Attractnormal
PWR0ACC100PP15TM45
Makes the opposite gender less likely to attack.
Thiefdark
PWR50ACC100PP25TM46
While attacking, it may steal the foe's held item.
Surfwater
PWR90ACC100PP15HM03
Creates a huge wave, then crashes it down on the foe.
Rock Smashfighting
PWR40ACC100PP15HM06
A rock-crushing attack that may lower Defense.
Waterfallwater
PWR80ACC100PP15HM07
Charges the foe with speed to climb waterfalls.
Divewater
PWR90ACC100PP10HM08
Dives underwater the first turn and strikes next turn.
Related Guides

Move Tutor Moves (12)

Body Slam(Battle Frontier Lounge 7)normal
PWR85ACC100PP15Tutor
A full-body slam that may cause paralysis.
Double Edge(Sootopolis City Pokemon Center 1F)normal
PWR120ACC100PP15Tutor
A life-risking tackle that also hurts the user.
Endure(Battle Frontier Lounge 7)normal
PWR0ACC0PP10Tutor
Endures any attack for 1 turn, leaving at least 1HP.
Icy Wind(Battle Frontier Lounge 7)ice
PWR55ACC95PP15Tutor
A chilling attack that lowers the foe's Speed.
Mimic(Lavaridge Town House)normal
PWR0ACC100PP10Tutor
Copies a move used by the foe during one battle.
Rock Slide(Battle Frontier Lounge 7)rock
PWR75ACC90PP10Tutor
Large boulders are hurled. May cause flinching.
Rollout(Mauville City)rock
PWR30ACC90PP20Tutor
An attack lasting 5 turns with rising intensity.
Seismic Toss(Battle Frontier Lounge 7)fighting
PWR1ACC100PP20Tutor
Inflicts damage identical to the user's level.
Sleep Talk(Fortree City House 2)normal
PWR0ACC0PP10Tutor
Uses an available move randomly while asleep.
Snore(Battle Frontier Lounge 7)normal
PWR50ACC100PP15Tutor
A loud attack that can be used only while asleep.
Substitute(Lilycove City Department Store Rooftop)normal
PWR0ACC0PP10Tutor
Creates a decoy using 1/4 of the user's maximum HP.
Swagger(Slateport City Pokemon Fan Club)normal
PWR0ACC85PP15Tutor
Confuses the foe, but also sharply raises Attack.
Related Guides

Type Summary

4
Weaknesses
5
Resistances
0
Immunities
9
Neutral

Weaknesses

Types that deal increased damage to Omastar. Use these types to counter it effectively.

grass4×electric2×fighting2×ground2×

Resistances & Immunities

Types that Omastar resists or is immune to. Avoid using these types against it.

fire0.25×normal0.5×ice0.5×poison0.5×flying0.5×
Related Guides

Also in

This Pokémon appears in other games we cover. Typing and base stats shown are that game's own — differences from the game you're viewing are marked.

See how Omastar differs across the games we cover →

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