PokeTools

Cloyster.

national dex #091 · gen I
BST 525 · water / ice
Cloyster official artwork
waterice
#091 · gen I
Profile
HP
50
ATK
95
DEF
180
SPA
85
SPD
45
SPE
70
BST 525 · best Defense 180 · worst Sp. Def 45 · meters scale to 200

Cloyster is weak to Electric, Grass, Fighting, Rock and resists Water, Ice.

Typingwaterice
AbilitiesShell Armor, Skill Link, Overcoat
Height, weight1.5 m / 132.5 kg
Catch rate60 / 255
Egg groupsWater3
Previous
#090shellder
Dex position
#091 of 1025
Jump to
Next
#092gastly

Cloyster base stats

BST 525 · ranges at level 100
StatBaseDistributionMin lv 100Max lv 100
HP50210304
Atk95175317
Def180328504
SpA85157295
SpD4585207
Spe70130262
BST525bst bar scales to 720, the series maximum
min = 0 IVs, 0 EVs, hindering nature · max = 31 IVs, 252 EVs, boosting natureEV yield 2 Def

Cloyster weaknesses and resistances

damage taken · Water / Ice dual typing
nor1
fir1
wat½
ele2
gra2
ice¼
fig2
poi1
gro1
fly1
psy1
bug1
roc2
gho1
dra1
dar1
ste1
fai1
Weak to
Electric, Grass, Fighting, Rock
Resists
Water, Ice (¼x)
Immune to
nothing

Cloyster abilities

3 total · 1 hidden
Shell ArmorProtects against critical hits.
Skill LinkExtends two-to-five-hit moves and triple kick to their full length every time.
OvercoathiddenProtects against damage from weather.

Cloyster evolution line

2 stages

Best Cloyster moves

gen 9 learnset · sorted by base power
Best STAB movessame type attack bonus, 1.5x power
waterHydro PumpSPEC110
iceBlizzardSPEC110
iceIce BeamSPEC90
waterSurfSPEC90
Best coverage movesoff-type, for hitting weaknesses
normalGiga ImpactPHYS150
normalHyper BeamSPEC150
normalTake DownPHYS90
normalBody SlamPHYS85

Cloyster moves

gen 9 · 68 moves · 18 level-up · 41 TM/HM · 9 tutor
49 moves · Cloyster appears in 15 games
Aurora BeamL1Hydro PumpL1Ice BeamL1Ice ShardL1Icicle SpearL1Iron DefenseL1LeerL1ProtectL1Shell SmashL1SupersonicL1TackleL1Toxic SpikesL1Water GunL1WhirlpoolL1WithdrawL1Razor ShellL5SpikesL36Icicle CrashL52AvalancheTMBlizzardTMBody SlamTMChilling WaterTMDrill RunTMEndureTMFacadeTMGiga ImpactTMHelping HandTMHyper BeamTMIce SpinnerTMIcy WindTMLight ScreenTMLiquidationTMMud ShotTMPoison JabTMRain DanceTMRestTMRock BlastTMScary FaceTMSleep TalkTMSmart StrikeTMSnowscapeTMSubstituteTMSurfTMSwiftTMTake DownTMTera BlastTMWater PulseTMWaterfallTMWeather BallTM
MoveTypeCatPowerAccuracyPPMethod
TacklenormalPHYS40100%35Level 1
LeernormalSTAT-100%30Level 1
SupersonicnormalSTAT-55%20Level 1
Water GunSTABwaterSPEC40100%25Level 1
Hydro PumpSTABwaterSPEC11080%5Level 1
Ice BeamSTABiceSPEC90100%10Level 1
Aurora BeamSTABiceSPEC65100%20Level 1
WithdrawwaterSTAT--40Level 1
ProtectnormalSTAT--10Level 1
WhirlpoolSTABwaterSPEC3585%15Level 1
Icicle SpearSTABicePHYS25100%30Level 1
Iron DefensesteelSTAT--15Level 1
Toxic SpikespoisonSTAT--20Level 1
Ice ShardSTABicePHYS40100%30Level 1
Shell SmashnormalSTAT--15Level 1
Razor ShellSTABwaterPHYS7595%10Level 5
SpikesgroundSTAT--20Level 36
Icicle CrashSTABicePHYS8590%10Level 52
AvalancheSTABicePHYS60100%10TM / HM
BlizzardSTABiceSPEC11070%5TM / HM
Body SlamnormalPHYS85100%15TM / HM
Chilling WaterSTABwaterSPEC50100%20TM / HM
Drill RungroundPHYS8095%10TM / HM
EndurenormalSTAT--10TM / HM
FacadenormalPHYS70100%20TM / HM
Giga ImpactnormalPHYS15090%5TM / HM
Helping HandnormalSTAT--20TM / HM
Hydro PumpSTABwaterSPEC11080%5TM / HM
Hyper BeamnormalSPEC15090%5TM / HM
Ice BeamSTABiceSPEC90100%10TM / HM
Ice SpinnerSTABicePHYS80100%15TM / HM
Icicle SpearSTABicePHYS25100%30TM / HM
Icy WindSTABiceSPEC5595%15TM / HM
Iron DefensesteelSTAT--15TM / HM
Light ScreenpsychicSTAT--30TM / HM
LiquidationSTABwaterPHYS85100%10TM / HM
Mud ShotgroundSPEC5595%15TM / HM
Poison JabpoisonPHYS80100%20TM / HM
ProtectnormalSTAT--10TM / HM
Rain DancewaterSTAT--5TM / HM
Razor ShellSTABwaterPHYS7595%10TM / HM
RestpsychicSTAT--5TM / HM
Rock BlastrockPHYS2590%10TM / HM
Scary FacenormalSTAT-100%10TM / HM
Sleep TalknormalSTAT--10TM / HM
Smart StrikesteelPHYS70-10TM / HM
SnowscapeiceSTAT0-10TM / HM
SpikesgroundSTAT--20TM / HM
SubstitutenormalSTAT--10TM / HM
SurfSTABwaterSPEC90100%15TM / HM
SwiftnormalSPEC60-20TM / HM
Take DownnormalPHYS9085%20TM / HM
Tera BlastnormalSPEC80100%10TM / HM
Toxic SpikespoisonSTAT--20TM / HM
Water GunSTABwaterSPEC40100%25TM / HM
Water PulseSTABwaterSPEC60100%20TM / HM
WaterfallSTABwaterPHYS80100%15TM / HM
Weather BallnormalSPEC50100%10TM / HM
WhirlpoolSTABwaterSPEC3585%15TM / HM
EndurenormalSTAT--10Tutor
Ice BeamSTABiceSPEC90100%10Tutor
Icy WindSTABiceSPEC5595%15Tutor
Iron DefensesteelSTAT--15Tutor
LiquidationSTABwaterPHYS85100%10Tutor
Sleep TalknormalSTAT--10Tutor
SubstitutenormalSTAT--10Tutor
SwiftnormalSPEC60-20Tutor
Water PulseSTABwaterSPEC60100%20Tutor

Cloyster Pokédex entries

8 generations · newest first
Generation VIII2 entries
Sword

Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.

Shield

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

Generation VII5 entries
Sun

Its hard shell cannot be shattered—not even by a bomb. The contents of the shell remain unknown.

Moon

Excavation of the tombs of ancient hunting tribes has turned up many spears tipped with spikes that had fallen off this Pokémon’s shell.

Ultra Sun

If areas of Cloyster’s very hard shell get damaged, those areas swell, gradually growing into large sharp spikes.

Ultra Moon

Slowpoke tails are its favorite food. It has even been known to come up on land to look for Slowpoke from time to time.

Let's Go Pikachu, Let's Go Eevee

For protection, it uses its harder-than-diamond shell. It also shoots spikes from the shell.

Generation VI3 entries
X

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

Y

Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.

Omega Ruby, Alpha Sapphire

Cloyster is capable of swimming in the sea. It does so by swallowing water, then jetting it out toward the rear. This Pokémon shoots spikes from its shell using the same system.

Generation V1 entry
Black, White, Black 2, White 2

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

Generation IV3 entries
Diamond, Pearl, Platinum

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

HeartGold

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

SoulSilver

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

Generation III4 entries
Ruby, Sapphire

CLOYSTER is capable of swimming in the sea. It does so by swallowing water, then jetting it out toward the rear. This POKéMON shoots spikes from its shell using the same system.

Emerald

It swims in the sea by swallowing water, then jetting it out toward the rear. The CLOYSTER shoots spikes from its shell using the same system.

FireRed

Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.

LeafGreen

When attacked, it launches its horns in quick volleys. Its innards have never been seen.

Generation II3 entries
Gold

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

Silver

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

Crystal

Even a missile can't break the spikes it uses to stab opponents. They're even hard­ er than its shell.

Generation I2 entries
Red, Blue

When attacked, it launches its horns in quick volleys. Its innards have never been seen.

Yellow

For protection, it uses its harder- than-diamonds shell. It also shoots spikes from the shell.

Cloyster species data

gen I species · breeding and training
Species
GenerationI (Kanto)
ColorPurple
ShapeBall
HabitatSea
Height1.5 m (4'11")
Weight132.5 kg (292.1 lbs)
Training and breeding
Capture rate60 (23.5%)
Growth rateSlow
Gender ratio50% Male / 50% Female
Egg groupsWater3
Hatch counter20 cycles, 5,376 steps
Base experience184
EV yield2 Def
Regional dex numbers
National#091
Kanto#091
Johto#170
Johto (HGSS)#172
Kalos Coastal#037
Alola (SM)#116
Melemele#116
Alola (USUM)#139
Melemele (USUM)#139
Let's Go Kanto#091
Galar#151
Isle of Armor#132
Paldea#330
Wild held items
Pearl50%
50% in Ruby, Sapphire, Emerald, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold, SoulSilver, Black, White, Black 2, White 2, X, Y, Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun, Ultra Moon
Big Pearl5%
5% in Ruby, Sapphire, Emerald, FireRed, LeafGreen, Diamond, Pearl, Platinum, HeartGold, SoulSilver, Black, White, Black 2, White 2, X, Y, Omega Ruby, Alpha Sapphire, Sun, Moon, Ultra Sun, Ultra Moon
Read outfrom base stats
Battle roleMixed attacker95 Atk / 85 SpA
Best statDefense 180exceptional
Speed tier70 Speaverage speed
Defensive load4 weak / 2 resistno immunities
Catch difficulty60 / 255moderate, about 23.5% per ball

About Cloyster

Cloyster is a Water and Ice-type Pokémon introduced in Generation 1 (Kanto). Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking. Cloyster stands 1.5 m (4'11") tall and weighs 132.5 kg (292.1 lbs), making it a medium-sized Pokémon.

Cloyster base stats

Cloyster has a base stat total of 525, which is above average, giving it solid potential in battle. Its highest stat is Defense at 180 (exceptional), while its lowest is Sp. Def at 45 (below average). Cloyster functions as a mixed attacker with balanced offensive stats. Cloyster is average speed with a base Speed of 70.

Cloyster weaknesses and resistances

As a Water and Ice-type, Cloyster is weak to Electric, Grass, Fighting, Rock-type moves, resists Water, Ice (¼x)-type attacks. This gives Cloyster 4 weaknesses, 2 resistances, and 0 immunities.

Cloyster abilities

Cloyster's abilities include Shell Armor, Skill Link, Overcoat. Shell Armor protects against critical hits.. Skill Link extends two-to-five-hit moves and triple kick to their full length every time. Its Hidden Ability is Overcoat, which protects against damage from weather.

Cloyster moves and learnset

Cloyster can learn 68 moves in Generation 9, including 18 by leveling up, 41 via TM/HM, and 9 from move tutors. Its strongest STAB moves include Hydro Pump (Water, 110 power), Blizzard (Ice, 110 power), Ice Beam (Ice, 90 power), Surf (Water, 90 power). For coverage, Cloyster can learn Giga Impact (Normal), Hyper Beam (Normal), Take Down (Normal).

Training Cloyster

Cloyster has a moderate capture rate of 60 (23.5%), meaning it may take a few attempts to catch. Defeating Cloyster yields 2 Defense EVs. It has a slow growth rate and requires approximately 5,376 steps to hatch from an Egg. Cloyster belongs to the Water3 egg group. Cloyster is part of a 2-stage evolution line (Shellder → Cloyster). Wild Cloyster may be found holding Pearl or Big Pearl.

Use the tools on the right to calculate damage, optimize EVs, build teams, and more with Cloyster. Check the damage calculator to find the best moves against Cloyster, or use the team builder to see how Cloyster fits into your squad.

Tools for Cloyster
Damage calculatorDamage output and defensive matchupsCatch rate calculatorOdds for any ball, status and HPStat calculatorReal stats from IVs, EVs and natureIV calculatorWork backwards from in-game numbersCompare statsSide by side against any rivalTeam builderBuild a team around this speciesEV optimizerOptimize EV spreads for competitive playCoverage solverFind the best type coverage movesWhere to catchEncounter locations across gamesWeakness chartWhat Water types take damage fromType chartThe full 18x18 effectiveness table
Strongest Water types
palkiaBST 680kyogreBST 670manaphyBST 600volcanionBST 600
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#090shellderALL POKEMON#092gastly