Special
Trick Room
355Low
35Very Slow
DTier

Omanyte is technically a pre-evolution of Omastar, but it holds its own in formats where Eviolite is allowed. Swift Swim doubles its Speed in rain, adding extra value. Watch the Grass matchup though — quadruple damage means one hit can end it. Known as the Spiral Pokemon.

Omanyte's spread isn't flashy. Defense leads, HP trails, 2 stats clear the bar. Tough to catch and worth 1 Defense EV, on a medium-fast 1M XP curve.

Base Stats
355Avg
HP35
F
Attack40
D
Defense100
B
Sp. Atk90
B
Sp. Def55
D
Speed35
F
Total355
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Omanyte yields +1 Def
HPAtkDef+1SpASpDSpe
Details
Catch45ChallengingMedium Fast1M XP0.4m / 1'04"7.5kg / 16.5 lbs71Base XP
Pokedex Entries

One of the ancient and long-since-extinct POKéMON that have been regenerated from fossils by humans. If attacked, it withdraws into its hard shell.

Emerald

Omanyte Weakness

Vulnerable

Type-wise, Omanyte takes extra damage from Grass, Electric, Fighting, and Ground. Watch out for Grass attacks, those deal 4x damage. It resists 5 types, giving it decent defensive coverage. Omanyte's physical bulk (base 100 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.

Gen III Type Chart
  • Dark and Steel types added — Fairy does not exist yet
  • Moves are Physical or Special based on type, not per move
4xCriticali
¼xResisti
0xImmunei
None
4Weak
5Resist
0Immune
Scorei-4
SpikesGrounded — up to 25%
Toxic SpikesVulnerable
4x Grass — Energy Ball, Giga Drain, Leaf Storm
Abilities
Swift SwimDoubles Speed during rain.
Shell ArmorProtects against critical hits.
Weak ArmorHARaises Speed and lowers Defense by one stage each upon being hit by a physical move.

Omanyte evolves into Omastar. It's a two-stage chain with the method shown below. Plenty of partners for breeding via two egg groups. Eggs are slow to hatch. Evolving adds up to 140 stat points total.

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 Omanyte with 58 breeding partners from the Water1 and Water3 egg groups. Pass egg moves like Aurora Beam, Bubble Beam, Haze and 4 more to offspring.

Egg Groups
Water1Water3
Gender
87.5%12.5%
Hatch Time
30 cycles·7,710 steps
Moderate~8 min with Flame Body
Egg Moves
7moves
Breed With (best first)
azumarillblastoisegolduckferaligatrkingdraswampertslowbroslowkingoctilleryludicolodewgongcrawdaunt

Best Build

No build content available for this Pokemon in Gen 3.

Try selecting a different game/generation filter, or check back later.

The egg pool carries weight here. Aurora Beam and Bubble Beam aren't available any other way for Omanyte, and they meaningfully change what it threatens. Stack those on top of Hydro Pump and Surf for solid options.

Level-Up Moves

Lv 1
Constrict
1010035Normal
Lv 1
Withdraw
40Water
Lv 13
Bite
6010025Dark
Lv 19
Water Gun
4010025Water
Lv 25
Mud Shot
559515Ground
Lv 31
Leer
10030Normal
Lv 37
Protect+4
10Normal
Lv 43
Tickle
10020Normal
Lv 49
Ancient Power
601005Rock
Lv 55
Hydro Pump
120805Water

TM Moves

Src
TM45
Attract
10015Normal
TM14
Blizzard
120705Ice
HM08
Dive
6010010Water
TM32
Double Team
15Normal
TM42
Facade
7010020Normal
TM21
Frustration
10020Normal
TM07
Hail
10Ice
TM10
Hidden Power
6010015Normal
TM13
Ice Beam
9510010Ice
TM17
Protect+4
10Normal
TM18
Rain Dance
5Water
TM44
Rest
10Psychic
TM27
Return
10020Normal
HM06
Rock Smash
2010015Fighting
TM39
Rock Tomb
609510Rock
TM37
Sandstorm
10Rock
TM43
Secret Power
7010020Normal
HM03
Surf
9510015Water
TM46
Thief
6010025Dark
TM06
Toxic
8510Poison
TM03
Water Pulse
6010020Water
HM07
Waterfall
8010015Water

Egg Moves

Src
Egg
Aurora Beam
6510020Ice
Egg
Bubble Beam
6510020Water
Egg
Haze
30Ice
Egg
Rock Slide
759010Rock
Egg
Slam
807520Normal
Egg
Spikes
20Ground
Egg
Supersonic
5520Normal

Tutor Moves

Src
Tutor
Body Slam
8510015Normal
Tutor
Double-Edge
12010015Normal
Tutor
Endure+4
10Normal
Tutor
Icy Wind
559515Ice
Tutor
Mimic
10Normal
Tutor
Rock Slide
759010Rock
Tutor
Rollout
309020Rock
Tutor
Sleep Talk
10Normal
Tutor
Snore
4010015Normal
Tutor
Substitute
10Normal
Tutor
Swagger
9015Normal

No wild encounters for Omanyte in Emerald. It's available in Red, Yellow, or Sword and can be transferred over. The details below show where to find it.

Omanyte is not available as a wild encounter in this game.

Receive as a gift in:

Then trade to Emerald.

Also found in:

  • Omanyte isn't fully evolved, so it's not built for competitive play. You'll want to evolve it into Omastar to unlock its full potential. At 355 BST, it's a stepping stone rather than a team anchor.

  • Omanyte's biggest threats include Venusaur (Grass), Jolteon (Electric), and Hitmonlee (Fighting), all carrying super-effective STAB moves. Venusaur is the most dangerous since Grass moves deal 4x damage. Ground-type attackers are also a problem. At base 35 Speed, Omanyte won't outrun any of these threats so switching to a resist is usually the safer play.

  • Omanyte evolves into Omastar at level 40. Omanyte is the base form of this evolutionary line.

  • Run Swift Swim on Omanyte. It's the ability that defines how you build around it and the main reason it holds a competitive niche. Omanyte also gets Shell Armor and Weak Armor, but they don't compare.

  • Omanyte fills the trick room role. It's a special attacker with base 90 Sp. Atk. Base 35 Speed is low. Priority moves or Trick Room are the way to go.

  • Omanyte appears in 19 games, including Yellow, Red & Blue, and Gold & Silver.

Omanyte has been part of the series since Red & Blue, appearing in 19 titles across all 9 generations. As a Gen 1 original, it's one of the most consistently available Pokemon in the franchise.