PokeTools
Cloyster official artwork

#091

Cloyster

Abilities

Shell ArmorSkill LinkOvercoat(Hidden)
Height: 1.5 m (4'11")
Weight: 132.5 kg (292.1 lbs)
Base Exp: 184
Base Stats
HP50
Atk95
Def180
SpA85
SpD45
Spe70
BST525
EV Yield: 2 Def
Stat Ranges at Lv. 100
Stat
Min (0 IV / 0 EV)Max (31 IV / 252 EV)
HP
210304
Atk
175317
Def
328504
SpA
157295
SpD
85207
Spe
130262

Min = 0 IVs, 0 EVs, hindering nature. Max = 31 IVs, 252 EVs, boosting nature.

Species Info
Generation
I (Kanto)
Color
Purple
Shape
Ball
Habitat
Sea
Growth Rate
Slow
Capture Rate
60 (23.5%)
Gender Ratio
50% Male / 50% Female
Egg Groups
Water3
Hatch Counter
20 cycles (~5,376 steps)
Base Experience
184
EV Yield
2 Def
Height
1.5 m (4'11")
Weight
132.5 kg (292.1 lbs)
Type Defenses

Damage taken when attacked by each type. Accounts for Water/Ice dual typing.

nor
fir
wat½
ele2
gra2
ice¼
fig2
poi
gro
fly
psy
bug
roc2
gho
dra
dar
ste
fai
Weak to: Electric, Grass, Fighting, Rock
Resists: Water, Ice (¼x)
Abilities
Shell Armor

Protects against critical hits.

Skill Link

Extends two-to-five-hit moves and triple kick to their full length every time.

OvercoatHidden Ability

Protects against damage from weather.

Evolution Chain
Pokedex Entries23 entries

Generation VII

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 VIII

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.

Show older entries (Gen I, II, III, IV, V, VI)

Generation I

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.

Generation II

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 III

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 IV

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 V

Black, White, Black 2, White 2

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

Generation VI

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.

Moves (Gen 9)68 moves

Level Up

18 moves
Lv.MoveTypeCat.PowAccPP
1TacklenorP40100%35
1LeernorN100%30
1SupersonicnorN55%20
1Water GunSTABwatS40100%25
1Hydro PumpSTABwatS11080%5
1Ice BeamSTABiceS90100%10
1Aurora BeamSTABiceS65100%20
1WithdrawwatN40
1ProtectnorN10
1WhirlpoolSTABwatS3585%15
1Icicle SpearSTABiceP25100%30
1Iron DefensesteN15
1Toxic SpikespoiN20
1Ice ShardSTABiceP40100%30
1Shell SmashnorN15
5Razor ShellSTABwatP7595%10
36SpikesgroN20
52Icicle CrashSTABiceP8590%10

TM / HM

41 moves
MoveTypeCat.PowAccPP
AvalancheSTABiceP60100%10
BlizzardSTABiceS11070%5
Body SlamnorP85100%15
Chilling WaterSTABwatS50100%20
Drill RungroP8095%10
EndurenorN10
FacadenorP70100%20
Giga ImpactnorP15090%5
Helping HandnorN20
Hydro PumpSTABwatS11080%5
Hyper BeamnorS15090%5
Ice BeamSTABiceS90100%10
Ice SpinnerSTABiceP80100%15
Icicle SpearSTABiceP25100%30
Icy WindSTABiceS5595%15
Iron DefensesteN15
Light ScreenpsyN30
LiquidationSTABwatP85100%10
Mud ShotgroS5595%15
Poison JabpoiP80100%20
ProtectnorN10
Rain DancewatN5
Razor ShellSTABwatP7595%10
RestpsyN5
Rock BlastrocP2590%10
Scary FacenorN100%10
Sleep TalknorN10
Smart StrikesteP7010
SnowscapeiceN010
SpikesgroN20
SubstitutenorN10
SurfSTABwatS90100%15
SwiftnorS6020
Take DownnorP9085%20
Tera BlastnorS80100%10
Toxic SpikespoiN20
Water GunSTABwatS40100%25
Water PulseSTABwatS60100%20
WaterfallSTABwatP80100%15
Weather BallnorS50100%10
WhirlpoolSTABwatS3585%15

Move Tutor

9 moves
MoveTypeCat.PowAccPP
EndurenorN10
Ice BeamSTABiceS90100%10
Icy WindSTABiceS5595%15
Iron DefensesteN15
LiquidationSTABwatP85100%10
Sleep TalknorN10
SubstitutenorN10
SwiftnorS6020
Water PulseSTABwatS60100%20
Wild Held Items

Items that wild Cloyster may be holding when encountered.

Pearl
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 Pearl
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
Pokedex 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
Notable Moves

Best STAB Moves

Same-type attack bonus (1.5x power)

watHydro Pump110 powS
iceBlizzard110 powS
iceIce Beam90 powS
watSurf90 powS

Best Coverage Moves

Off-type moves for hitting weaknesses

norGiga Impact150 powP
norHyper Beam150 powS
norTake Down90 powP
norBody Slam85 powP
Other Water-type Pokemon

Tools for Cloyster

About Cloyster

Cloyster is a Water and Ice-type Pokemon 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 Pokemon.

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 & 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 & 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 above 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.