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HG/SS / Pokédex

Cloyster

Cloyster

#172 in the HeartGold & SoulSilver Pokédex • Bivalve Pokémon

Cloyster

#172 in the HeartGold & SoulSilver Pokédex • Bivalve Pokémon

Stats

Base stat spread shown as a hex chart and supporting stat bars.

Min

Max

HP

50

210

304

Attack

95

175

317

Defense

180

328

504

Sp. Atk

85

157

295

Sp. Def

45

85

207

Speed

70

130

262

Total

525

Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.

Shellder

Gastly

Cloyster normal sprite

Normal

Shiny Cloyster sprite

Shiny

Cloyster

Bivalve Pokémon

#172
WaterIce

Height

1.5 m (4'11")

Weight

132.5 kg (292.1 lbs)

Abilities

Shell ArmorSkill Link

It's Super Effective

Damage multipliers Cloyster takes from each attacking type, sorted from worst weakness to best resistance.

Weak to

Electric

Grass

Fighting

Rock

Resists

Ice

0.25×

Water

0.5×

Growth

EV yield, catch rate, and experience details for this Pokémon.
Pokédexes
Updated Johto #172
EV yield
2 Def
Catch rate
60
Base Exp.
184

Eggs

Egg groups, gender ratio, and hatching details for this Pokémon.
Egg Groups
Water 3
Gender
50% male
50% female
Egg cycles
20 (5,120 steps)

Lore

Version-specific Pokédex entries for this Pokémon.
Pokémon HeartGold box art

HeartGold

Once it slams its shell shut, it is impossible to open, even by those with superior strength.

Pokémon SoulSilver box art

SoulSilver

CLOYSTER that live in seas with harsh tidal currents grow large, sharp spikes on their shells.

Evolution

Evolution requirements shown in a compact table or chain view.
PokémonRequiresEvolution
Shellder

Shellder

#171

Water StoneUse Water Stone
Cloyster

Cloyster

#172

Held Items

Items this Pokémon may hold when encountered in the wild.
Big PearlBig Pearl
HeartGold
5%
SoulSilver
5%
HeartGold
50%
SoulSilver
50%

Moves

Moves this Pokémon learns naturally by reaching specific levels.
Class
Description
StartSupersonicNormalStatus-5520

The user generates odd sound waves from its body. It may confuse the target.

StartAurora BeamIceSpecial6510020

The foe is hit with a rainbow-colored beam. It may also lower the target’s Attack stat.

StartWithdrawWaterStatus--40

The user withdraws its body into its hard shell, raising its Defense stat.

StartProtectNormalStatus--10

It enables the user to evade all attacks. Its chance of failing rises if it is used in succession.

StartToxic SpikesPoisonStatus--20

The user lays a trap of poison spikes at the foe’s feet. They poison foes that switch into battle.

28SpikesGroundStatus--20

The user lays a trap of spikes at the foe’s feet. The trap hurts foes that switch into battle.

40Spike CannonNormalPhysical2010015

Sharp spikes are fired at the foe to strike two to five times in rapid succession.

Machines

Moves this Pokémon can learn from Technical Machines and Hidden Machines in Pokémon HeartGold and SoulSilver.
Class
Description
TM03Water PulseWaterSpecial6010020

The user attacks the foe with a pulsing blast of water. It may also confuse the foe.

TM06ToxicPoisonStatus-8510

A move that leaves the target badly poisoned. Its poison damage worsens every turn.

TM07HailIceStatus--10

The user summons a hailstorm lasting five turns. It damages all Pokémon except the Ice type.

TM10Hidden PowerNormalSpecial110015

A unique attack that varies in type and intensity depending on the Pokémon using it.

TM13Ice BeamIceSpecial9510010

The foe is struck with an icy-cold beam of energy. It may also freeze the target solid.

TM14BlizzardIceSpecial120705

A howling blizzard is summoned to strike the foe. It may also freeze the target solid.

TM15Hyper BeamNormalSpecial150905

The foe is attacked with a powerful beam. The user must rest on the next turn to regain its energy.

TM17ProtectNormalStatus--10

It enables the user to evade all attacks. Its chance of failing rises if it is used in succession.

TM18Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water- type moves.

TM21FrustrationNormalPhysical-10020

A full-power attack that grows more powerful the less the user likes its Trainer.

TM27ReturnNormalPhysical-10020

A full-power attack that grows more powerful the more the user likes its Trainer.

TM32Double TeamNormalStatus--15

By moving rapidly, the user makes illusory copies of itself to raise its evasiveness.

TM41TormentDarkStatus-10015

The user torments and enrages the foe, making it incapable of using the same move twice in a row.

TM42FacadeNormalPhysical7010020

An attack move that doubles its power if the user is poisoned, paralyzed, or has a burn.

TM43Secret PowerNormalPhysical7010020

The user attacks with a secret power. Its added effects vary depending on the user’s environment.

TM44RestPsychicStatus--5

The user goes to sleep for two turns. It fully restores the user’s HP and heals any status problem.

TM45AttractNormalStatus-10015

If it is the opposite gender of the user, the foe becomes infatuated and less likely to attack.

TM55BrineWaterSpecial6510010

If the foe’s HP is down to about half, this attack will hit with double the power.

TM58EndureNormalStatus--10

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

TM64ExplosionNormalPhysical2501005

The user explodes to inflict damage on all Pokémon in battle. The user faints upon using this move.

TM66PaybackDarkPhysical5010010

If the user can use this attack after the foe attacks, its power is doubled.

TM68Giga ImpactNormalPhysical150905

The user charges at the foe using every bit of its power. The user must rest on the next turn.

TM72AvalancheIcePhysical6010010

An attack move that inflicts double the damage if the user has been hurt by the foe in the same turn.

TM78CaptivateNormalStatus-10020

If it is the opposite gender of the user, the foe is charmed into sharply lowering its Sp. Atk stat.

TM82Sleep TalkNormalStatus--10

While it is asleep, the user randomly uses one of the moves it knows.

TM83Natural GiftNormalPhysical-10015

The user draws power to attack by using its held Berry. The Berry determines its type and power.

TM84Poison JabPoisonPhysical8010020

The foe is stabbed with a tentacle or arm steeped in poison. It may also poison the foe.

TM87SwaggerNormalStatus-9015

The user enrages the foe into confusion. However, it also sharply raises the foe’s Attack stat.

TM90SubstituteNormalStatus--10

The user makes a copy of itself using some of its HP. The copy serves as the user’s decoy.

HM03SurfWaterSpecial9510015

It swamps the entire battlefield with a giant wave. It can also be used for crossing water.

HM05WhirlpoolWaterSpecial157015

Traps the foe inside a whirlpool that lasts for two to five turns. The user can pass through whirlpools.

Tutors

Moves this Pokémon can learn from move tutors in this game.
Class
Description
DiveWaterPhysical8010010

A two-turn attack. The user dives underwater on the first turn, then hits on the next turn.

Icy WindIceSpecial559515

The user attacks with a gust of chilled air. It also lowers the target’s Speed stat.

Iron DefenseSteelStatus--15

The user hardens its body’s surface like iron, sharply raising its Defense stat.

Signal BeamBugSpecial7510015

The user attacks with a sinister beam of light. It may also confuse the target.

SnoreNormalSpecial4010015

An attack that can be used only if the user is asleep. The harsh noise may also make the foe flinch.

SwiftNormalSpecial60-20

Star-shaped rays are shot at the foe. This attack never misses.

Traits

Ability options available to this Pokémon in this game.

Shell Armor

Ability Slot 1

The Pokémon is protected against critical hits.

Protects against critical hits.

Skill Link

Ability Slot 2

Increases the frequency of multi-strike moves.

Extends two-to-five-hit moves and Triple Kick to their full length every time.

#171

Shellder

#58

Gastly

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