The Essentials on Omastar
- Weaknesses
- ×4 Grass · ×2 Electric, Fighting, Ground Table
- Resistances
- ×¼ Fire · ×½ Normal, Ice, Poison, Flying
- Evolution
- Omanyte → Omastar (Lv. 40)
- Shiny
Alternate, rare colors: in the main games since X and Y, an encounter has a 1 in 4,096 chance of being Shiny, excluding hunting bonuses. Available as a Shiny in Pokémon GO. View- Stats
- Total 495 · top stat: Defense (125) Detail
- In Current Games
- Pokémon GO: available, Shiny, Shadow
- Other Names
- Amonistar in French · オムスター, Omstar in Japanese · Amoroso in German All Languages
Overview
Omastar is a Water and Rock-type Pokémon, No. 139 in the National Pokédex. Original generation: Generation 1. Category: Spiral Pokémon. Height: 1 m, weight: 35 kg.
Omastar evolves from Omanyte and does not evolve further.
Abilities: Swift Swim and Shell Armor. Hidden Ability: Weak Armor. Omastar is weak to Electric, Fighting and Ground-type moves (×2 damage). Omastar is very weak to Grass-type moves (×4 damage).
Generation
Generation 1
Red / Blue / Yellow
National No.
#139
National Pokédex
Category
Spiral Pokémon
Status
Standard
Base Stats
The total determines a Pokémon's overall power.
HP
70
255
Attack
60
255
Defense
125
255
Special Attack
115
255
Special Defense
70
255
Speed
55
255
Total
495
Min HP (Lv. 100)
250
0 IV, 0 EV, neutral nature
Max HP (Lv. 100)
344
31 IV, 252 EV, beneficial nature
Gen Changes
Stable
Unchanged recently
Type Effectiveness
Multipliers received depending on the type of the opposing move (Water / Rock). See the type chart
Very weak (×4) — 1 type
Grass
×4
Weak (×2) — 3 types
Electric
×2
Fighting
×2
Ground
×2
Normal (×1) — 9 types
Water
×1
Psychic
×1
Bug
×1
Rock
×1
Ghost
×1
Dragon
×1
Dark
×1
Steel
×1
Fairy
×1
Resistant (×0.5) — 4 types
Normal
×½
Ice
×½
Poison
×½
Flying
×½
Resistant (×0.25) — 1 type
Fire
×¼
Abilities
Ability 1
Boosts the Pokémon's Speed stat in rain.
Ability 2
A hard shell protects the Pokémon from critical hits.
The Pokémon's Defense stat is lowered when it takes damage from physical moves, but its Speed stat is sharply boosted.
Omastar Evolution
Omastar Forms and Shiny
Standard Form
Water · Rock
Shiny Availability
Shiny form available
Base rate (Gen VI+): 1/4096.
With Shiny Charm: 1/1365.
Masuda Method: 1/683.
Omastar Moves
Moves this Pokémon can learn, by method.
Lv.
Move
Type · Cat.
Accuracy
Pow.
PP
—
Crunch
Dark
Phys.
100%
80
15
—
Spike Cannon
Normal
Phys.
100%
20
15
1
Constrict
Normal
Phys.
100%
10
35
1
Bind
Normal
Phys.
85%
15
20
1
Sand Attack
Ground
Stat
100%
—
15
1
Horn Attack
Normal
Phys.
100%
65
25
1
Bite
Dark
Phys.
100%
60
25
1
Bide
Normal
Phys.
—
—
10
1
Withdraw
Water
Stat
—
—
40
1
Rollout
Rock
Phys.
90%
30
20
1
Supersonic
Normal
Stat
55%
—
20
15
Water Gun
Water
Spec.
100%
40
25
20
Leer
Normal
Stat
100%
—
30
25
Mud Shot
Ground
Spec.
95%
55
15
26
Rock Throw
Rock
Phys.
90%
50
15
30
Ancient Power
Rock
Spec.
100%
60
5
35
Brine
Water
Spec.
100%
65
10
37
Rock Slide
Rock
Phys.
90%
75
10
43
Protect
Normal
Stat
—
—
10
48
Tickle
Normal
Stat
100%
—
20
49
Rock Blast
Rock
Phys.
90%
25
10
56
Surf
Water
Spec.
100%
90
15
63
Shell Smash
Normal
Stat
—
—
15
70
Hydro Pump
Water
Spec.
80%
110
5
Advanced Breeding
Egg Groups
Water 1 · Water 3
Gender
♂ 87.5 / ♀ 12.5%
Ditto Compatibility
✓ Yes
Pokérus
Susceptible
EV ×2 if infected
Max Characteristic
Defense
Highest base stat
Hyper Training & Mints
Available from level 50. Cost: 1 Gold Bottle Cap per IV set to 31 or 3 Silver Bottle Caps per IV. Mints let you change the effect of a Nature without changing the base Nature.
Where to Find Omastar
Available in 2 games, 2 recorded encounters. Click a game to see the details.
Natively obtainable:
Shield
Sword
Generation VIII
Shield 1 encounter
Available
▼
Wild Area
(1)
Crown Tundra
Sword 1 encounter
Available
▼
Wild Area
(1)
Crown Tundra
Transfer to Pokémon HOME
How to bring this Pokémon to HOME depending on the game of origin.
Sword
→
Pokémon HOME
HOME (direct)
Shield
→
Pokémon HOME
HOME (direct)
Note:
Some transfers are irreversible (Bank → HOME). Check the legality of moves in the target game — HOME may replace an illegal move with a basic move.
Competitive & Meta
Omastar in Pokémon GO
- 2,786Max CP (Lv. 40)
- 1,592Perfect CP in Raids
- 5 kmper Candy as Buddy
Pokédex Entries
Description by game, with language selection.
Red
“A prehistoric POKéMON that died out when its heavy shell made it impossible to catch prey.”
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.”
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.”
Ruby
“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.”
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.”
Diamond
“It is thought that this Pokémon became extinct because its spiral shell grew too large.”
Pearl
“It is thought that this Pokémon became extinct because its spiral shell grew too large.”
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.”
Black
“It is thought that this Pokémon became extinct because its spiral shell grew too large.”
White
“It is thought that this Pokémon became extinct because its spiral shell grew too large.”
Black 2
“It is thought that this Pokémon became extinct because its spiral shell grew too large.”
White 2
“It is thought that this Pokémon became extinct because its spiral shell grew too large.”
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
“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.”
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.”
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!
“Its sharp beak rings its mouth. Its shell was too big for it to move freely, so it became extinct.”
Let’s Go, Eevee!
“Its sharp beak rings its mouth. Its shell was too big for it to move freely, so it became extinct.”
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.”
Multilingual Names
🇫🇷 Français
Amonistar
🇬🇧 English
Omastar
🇯🇵 漢字
オムスター
🇯🇵 Kana
オムスター
🇯🇵 Romaji
Omstar
🇩🇪 Deutsch
Amoroso
🇪🇸 Español
Omastar
🇮🇹 Italiano
Omastar
🇰🇷 한국어
암스타
🇨🇳 ZH-Hans
多刺菊石兽
🇹🇼 ZH-Hant
多刺菊石獸
Category (Genus)
🇫🇷 FR
Pokémon Spirale
🇬🇧 EN
Spiral Pokémon
🇯🇵 JP
うずまきポケモン
🇩🇪 DE
Spiralen-Pokémon
Media & Gallery
Audio Cries
Frequently asked questions about Omastar
What type is Omastar?
Omastar is a Water and Rock-type Pokémon.
Can Omastar still evolve?
Omastar is the final stage of its evolutionary line: coming from Omanyte, it does not evolve further.
What are Omastar's weaknesses?
Omastar is weak to Electric, Fighting and Ground-type moves (×2 damage). Omastar is very weak to Grass-type moves (×4 damage).
What is Omastar's Hidden Ability?
Omastar's Hidden Ability is Weak Armor. Its regular Abilities are Swift Swim and Shell Armor.
Can you get a Shiny Omastar in Pokémon GO?
Yes, Shiny Omastar is available in Pokémon GO. Its Pokémon GO entry
