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Cloyster

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Cloyster in Pokémon Black & White

#91 in the National Pokédex • Bivalve Pokémon

Cloyster in the National Pokédex
Cloyster sprite

Normal

Shiny Cloyster sprite

Shiny

Pokédex entries

Pokémon Black

It fights by keeping its shell tightly shut for protection and by shooting spikes to repel foes.

Pokémon White

It fights by keeping its shell tightly shut for protection and by shooting spikes to repel foes.

Pokémon details

Types

WaterIce

Category

Bivalve Pokémon

Height

1.5 m (4'11")

Weight

132.5 kg (292.1 lbs)

National Pokédex

#0091

Cloyster in Other Games

National Dex page

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.

Type-only matchups for Cloyster, sorted from worst weakness to best resistance. Abilities, held items and battle conditions can change the damage taken.

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

Egg groups, gender ratio, and hatching details for this Pokémon.
Egg groups
Gender
50% male
50% female
Egg cycles
20

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

Shellder

#90

Water StoneUse Water Stone
Cloyster

Cloyster

#91

Known encounter locations for this Pokémon in this game.
Black
LocationMethodLevelChanceConditions

Undella Bay

Fishing in dark spots45-704%

Requires the Super Rod received from Looker after defeating Ghetsis

Undella Bay

Fishing in dark spots45-701%

Requires the Super Rod received from Looker after defeating Ghetsis

Route 13

Road 13

Fishing in dark spots45-704%

Requires the Super Rod received from Looker after defeating Ghetsis

Route 13

Road 13

Fishing in dark spots45-701%

Requires the Super Rod received from Looker after defeating Ghetsis

Undella Town

Fishing in dark spots45-704%

Requires the Super Rod received from Looker after defeating Ghetsis

Undella Town

Fishing in dark spots45-701%

Requires the Super Rod received from Looker after defeating Ghetsis

White
LocationMethodLevelChanceConditions

Undella Bay

Fishing in dark spots45-704%

Requires the Super Rod received from Looker after defeating Ghetsis

Undella Bay

Fishing in dark spots45-701%

Requires the Super Rod received from Looker after defeating Ghetsis

Route 13

Road 13

Fishing in dark spots45-704%

Requires the Super Rod received from Looker after defeating Ghetsis

Route 13

Road 13

Fishing in dark spots45-701%

Requires the Super Rod received from Looker after defeating Ghetsis

Undella Town

Fishing in dark spots45-704%

Requires the Super Rod received from Looker after defeating Ghetsis

Undella Town

Fishing in dark spots45-701%

Requires the Super Rod received from Looker after defeating Ghetsis

Programmed wild held-item entries. Some species require imports and have no wild Black/White encounter.
Black
5%
White
5%
Black
50%
White
50%

Moves this Pokémon learns naturally by reaching specific levels.
Class
StartSupersonic

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

Normal-5520
StartAurora Beam

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

Ice6510020
StartWithdraw

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

Water--40
StartProtect

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

Normal--10
StartToxic Spikes

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

Poison--20
13Spike Cannon

Sharp spikes are shot at the target in rapid succession. They hit two to five times in a row.

Normal2010015
28Spikes

The user lays a trap of spikes at the opposing team’s feet. The trap hurts Pokémon that switch into battle.

Ground--20
52Icicle Crash

The user attacks by harshly dropping an icicle onto the target. It may also make the target flinch.

Ice859010

Moves this Pokémon can learn from Technical Machines and Hidden Machines in Pokémon Black and White.
Class
TM06Toxic

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

Poison-9010
TM07Hail

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

Ice--10
TM10Hidden Power

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

Varies

30–7010015
TM13Ice Beam

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

Ice9510010
TM14Blizzard

A howling blizzard is summoned to strike the opposing team. It may also freeze them solid.

Ice120705
TM15Hyper Beam

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

Normal150905
TM17Protect

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

Normal--10
TM18Rain Dance

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

Water--5
TM21Frustration

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

Normal-10020
TM27Return

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

Normal-10020
TM32Double Team

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

Normal--15
TM41Torment

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

Dark-10015
TM42Facade

An attack move that doubles its power if the user is poisoned, burned, or has paralysis.

Normal7010020
TM44Rest

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

Psychic--10
TM45Attract

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

Normal-10015
TM48Round

The user attacks the target with a song. Others can join in the Round and make the attack do greater damage.

Normal6010015
TM64Explosion

The user explodes to inflict damage on those around it. The user faints upon using this move.

Normal2501005
TM66Payback

If the user moves after the target, this attack’s power will be doubled.

Dark5010010
TM68Giga Impact

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

Normal150905
TM79Frost Breath

The user blows a cold breath on the target. This attack always results in a critical hit.

Ice409010
TM84Poison Jab

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

Poison8010020
TM87Swagger

The user enrages and confuses the target. However, it also sharply raises the target’s Attack stat.

Normal-9015
TM90Substitute

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

Normal--10
HM03Surf

It swamps the area around the user with a giant wave. It can also be used for crossing water.

Water9510015
HM06Dive

Diving on the first turn, the user floats up and attacks on the second turn. It can be used to dive deep in the ocean.

Water8010010

Learn these before evolving. The source describes the earlier form’s method; egg and Light Ball moves must be retained through evolution. Four-move combinations are not certified by this list.
Class
Acquisition
Aqua Ring

The user envelops itself in a veil made of water. It regains some HP on every turn.

Water--20

Prior evolution: egg

Avalanche

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

Ice6010010

Prior evolution: egg

Barrier

The user throws up a sturdy wall that sharply raises its Defense stat.

Psychic--30

Prior evolution: egg

Brine

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

Water6510010

Prior evolution: level-up (Lv. 44)

Bubble Beam

A spray of bubbles is forcefully ejected at the opposing team. It may also lower their Speed stats.

Water6510020

Prior evolution: egg

Clamp

The target is clamped and squeezed by the user’s very thick and sturdy shell for four to five turns.

Water358515

Prior evolution: level-up (Lv. 25)

Hydro Pump

The target is blasted by a huge volume of water launched under great pressure.

Water120805

Prior evolution: level-up (Lv. 61)

Ice Shard

The user flash freezes chunks of ice and hurls them at the target. This move always goes first.

Ice4010030

Prior evolution: level-up (Lv. 28)

Icicle Spear

The user launches sharp icicles at the target. It strikes two to five times in a row.

Ice2510030

Prior evolution: level-up (Lv. 13)

Iron Defense

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

Steel--15

Prior evolution: level-up (Lv. 49)

Leer

The opposing team gains an intimidating leer with sharp eyes. The opposing team’s Defense stats are reduced.

Normal-10030

Prior evolution: level-up (Lv. 20)

Mud Shot

The user attacks by hurling a blob of mud at the target. It also reduces the target’s Speed.

Ground559515

Prior evolution: egg

Rapid Spin

A spin attack that can also eliminate such moves as Bind, Wrap, Leech Seed, and Spikes.

Normal2010040

Prior evolution: egg

Razor Shell

The user cuts its target with sharp shells. This attack may also lower the target’s Defense stat.

Water759510

Prior evolution: level-up (Lv. 32)

Rock Blast

The user hurls hard rocks at the target. Two to five rocks are launched in quick succession.

Rock259010

Prior evolution: egg

Screech

An earsplitting screech harshly reduces the target’s Defense stat.

Normal-8540

Prior evolution: egg

Shell Smash

The user breaks its shell, lowering its Defense and Sp. Def stats but sharply raising Attack, Sp. Atk, and Speed stats.

Normal--15

Prior evolution: level-up (Lv. 56)

Tackle

A physical attack in which the user charges and slams into the target with its whole body.

Normal5010035

Prior evolution: level-up (Lv. 1)

Take Down

A reckless, full-body charge attack for slamming into the target. It also damages the user a little.

Normal908520

Prior evolution: egg

Twineedle

The user damages the target twice in succession by jabbing it with two spikes. It may also poison the target.

Bug2510020

Prior evolution: egg

Water Pulse

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

Water6010020

Prior evolution: egg

Whirlpool

Traps foes in a violent swirling whirlpool for four to five turns.

Water358515

Prior evolution: level-up (Lv. 40)

These require the labeled breeding, transfer, trade or historical distribution route. Historical gifts and Dream World services are no longer ordinary active acquisition sources.
Class
Acquisition
Captivate

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

Normal-10020

PokéTransfer from Generation IV

Double-Edge

A reckless, life-risking tackle. It also damages the user by a fairly large amount, however.

Normal12010015

Generation III → Pal Park → Generation IV → PokéTransfer

Endure

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

Normal--10

PokéTransfer from Generation IV

Icy Wind

The user attacks with a gust of chilled air. It also reduces the targets’ Speed stat.

Ice559515

PokéTransfer from Generation IV

Mimic

The user copies the target’s last move. The move can be used during battle until the Pokémon is switched out.

Normal--10

Generation III → Pal Park → Generation IV → PokéTransfer

Natural Gift

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

Varies

-10015

PokéTransfer from Generation IV

Secret Power

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

Normal7010020

PokéTransfer from Generation IV

Signal Beam

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

Bug7510015

PokéTransfer from Generation IV

Sleep Talk

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

Normal--10

PokéTransfer from Generation IV

Snore

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

Normal4010015

PokéTransfer from Generation IV

Swift

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

Normal60-20

PokéTransfer from Generation IV

Ability options available to this Pokémon in this game.

Hidden Ability entries show the game’s programmed slots. Obtaining one can require a historical Dream World promotion, a special gift or a trade from Black 2 and White 2. A programmed slot does not establish that the Hidden Ability was officially obtainable in Generation V.

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.

Overcoat(Hidden Ability)

Protects the Pokémon from damage from weather.

Protects against damage from weather.

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