Omastar

#139 in the National Pokédex • Spiral Pokémon

Normal

Shiny

Pokédex entries

Pokémon 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.

Details

Types

Weak to

4×

2×

2×

2×

Resists

0.25×

0.5×

0.5×

0.5×

0.5×

Growth

EV yield, catch rate, and experience details for this Pokémon.

EV yield	2 Def
Catch rate	45
Base Exp.	199

Eggs

Egg groups, gender ratio, and hatching details for this Pokémon.

Egg groups	Water 1 Water 3
Gender	87.5% male 12.5% female
Egg cycles	30 (elapsed hatch time varies; Flame Body or Magma Armor speeds hatching in Emerald)

Evolution

Evolution requirements shown in a compact table or chain view.

Pokémon	Requires	Evolution
Omanyte #138	Level 40	Omastar #139

Moves

Moves this Pokémon learns naturally by reaching specific levels.

		Class				Description
Start	Bite	Special	60	100	25	Bites with vicious fangs. May cause flinching.
Start	Withdraw	Status	-	-	40	Withdraws the body into its hard shell to raise DEFENSE.
Start	Constrict	Physical	10	100	35	Constricts to inflict pain. May lower SPEED.
13	Bite	Special	60	100	25	Bites with vicious fangs. May cause flinching.
19	Water Gun	Special	40	100	25	Squirts water to attack the foe.
25	Mud Shot	Physical	55	95	15	Hurls mud at the foe and reduces SPEED.
31	Leer	Status	-	100	30	Frightens the foe with a leer to lower DEFENSE.
37	Protect	Status	-	-	10	Evades attack, but may fail if used in succession.
40	Spike Cannon	Physical	20	100	15	Launches sharp spikes that strike 2 to 5 times.
46	Tickle	Status	-	100	20	Makes the foe laugh to lower ATTACK and DEFENSE.
55	Ancient Power	Physical	60	100	5	An attack that may raise all stats.
65	Hydro Pump	Special	120	80	5	Blasts water at high power to strike the foe.

Machines

Moves this Pokémon can learn from Technical Machines and Hidden Machines in Pokémon Emerald.

			Class				Description
TM03	Water Pulse		Special	60	100	20	Attacks with ultrasonic waves. May confuse the foe.
TM06	Toxic		Status	-	85	10	Poisons the foe with an intensifying toxin.
TM07	Hail		Status	-	-	10	Summons a hailstorm that strikes every turn.
TM10	Hidden Power	Type varies	Varies By Type	30–70	100	15	The effectiveness varies with the user.
TM13	Ice Beam		Special	95	100	10	Blasts the foe with an icy beam that may freeze it.
TM14	Blizzard		Special	120	70	5	Hits the foe with an icy storm that may freeze it.
TM15	Hyper Beam		Physical	150	90	5	Powerful, but leaves the user immobile the next turn.
TM17	Protect		Status	-	-	10	Evades attack, but may fail if used in succession.
TM18	Rain Dance		Status	-	-	5	Boosts the power of WATER-type moves for 5 turns.
TM21	Frustration		Physical	-	100	20	An attack that is stronger if the TRAINER is disliked.
TM27	Return		Physical	-	100	20	An attack that increases in power with friendship.
TM32	Double Team		Status	-	-	15	Creates illusory copies to raise evasiveness.
TM37	Sandstorm		Status	-	-	10	Causes a sandstorm that rages for several turns.
TM39	Rock Tomb		Physical	50	80	10	Stops the foe from moving with rocks and cuts SPEED.
TM42	Facade		Physical	70	100	20	Boosts ATTACK when burned, paralyzed, or poisoned.
TM43	Secret Power		Physical	70	100	20	An attack with effects that vary by location.
TM44	Rest		Status	-	-	10	The user sleeps for 2 turns, restoring HP and status.
TM45	Attract		Status	-	100	15	Makes the opposite gender less likely to attack.
TM46	Thief		Special	40	100	10	While attacking, it may steal the foe’s held item.
HM03	Surf		Special	95	100	15	Creates a huge wave, then crashes it down on the foe.
HM06	Rock Smash		Physical	20	100	15	A rock-crushing attack that may lower DEFENSE.
HM07	Waterfall		Special	80	100	15	Charges the foe with speed to climb waterfalls.
HM08	Dive		Special	60	100	10	Dives underwater the first turn and strikes next turn.

Tutors

Moves this Pokémon can learn from move tutors in this game.

	Class				Description
Body Slam	Physical	85	100	15	A full-body slam that may cause paralysis.
Double-Edge	Physical	120	100	15	A life-risking tackle that also hurts the user.
Endure	Status	-	-	10	Endures any attack for 1 turn, leaving at least 1HP.
Icy Wind	Special	55	95	15	A chilling attack that lowers the foe’s SPEED.
Mimic	Status	-	-	10	Copies a move used by the foe during one battle.
Rock Slide	Physical	75	90	10	Large boulders are hurled. May cause flinching.
Rollout	Physical	30	90	20	An attack lasting 5 turns with rising intensity.
Seismic Toss	Physical	-	100	20	Inflicts damage identical to the user’s level.
Sleep Talk	Status	-	-	10	Uses an available move randomly while asleep.
Snore	Physical	40	100	15	A loud attack that can be used only while asleep.
Substitute	Status	-	-	10	Creates a decoy using 1/4 of the user’s maximum HP.
Swagger	Status	-	90	15	Confuses the foe, but also sharply raises ATTACK.

Traits

Ability options available to this Pokémon in this game.

Swift Swim

Raises SPEED in rain.

Doubles Speed during rain.

Shell Armor

Blocks critical hits.

Protects against critical hits.

#138

Omanyte

#140

Kabuto

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