Cloyster: Stats, Moves, Weakness & Evolution

Base stats

HP50125–157210–304

Atk95103–161175–317

Def180180–255328–504

SpA8594–150157–295

SpD4558–10685–207

Spe7081–134130–262

Total525Higher than 80% of Pokémon

Ranges in Pokémon Champions at Lv 50: 0 Stat Points with a −10% Stat Alignment to 32 Stat Points with a +10% one (HP has no alignment).Ranges in the main games at Lv 100: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 2 Def.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature

Calculate damage →

Type matchups

WaterIceshow which type causes itweaknessresistance

Weak to

2×

ElectricFightingGrassRock

Resists

½×

Water

¼×

Ice

Takes normal damage from 12 types

NormalFlyingPoisonGroundBugGhostSteelFirePsychicDragonDarkFairy

Speed tiers

The faster Pokémon moves first each turn, so knowing who you outspeed decides a lot of battles. These are its Speed values at Lv 50 in Pokémon Champions (base Speed 70); Scarf and Tailwind use the Max+ value.

Max+134Max122No SP90Min81Scarf201Tailwind268

At max Speed, Cloyster outspeeds 13 of the 30 most used Pokémon in Champions VGC on Showdown.

Speed at Lv 50 in Pokémon Champions: Cloyster against the 30 most used Pokémon in Champions VGC on Showdown, fastest first
Speed		Pokémon
203		Mega Garchomp ZModest · 32 SP · #21 on Showdown
200		Mega GengarTimid · 32 SP · #26 on Showdown
190		Mega Raichu YTimid · 23 SP · #13 on Showdown
189		Mega SalamenceTimid · 32 SP · #4 on Showdown
184		WhimsicottTimid · 32 SP · #23 on Showdown
178		Mega MetagrossJolly · 32 SP · #28 on Showdown
178		Mega StaraptorJolly · 32 SP · #29 on Showdown
172		SneaslerAdamant · 32 SP · #2 on Showdown
169		Mega FloetteTimid · 32 SP · #17 on Showdown
169		GarchompJolly · 32 SP · #19 on Showdown
167		Mega Charizard YTimid · 32 SP · #14 on Showdown
167		Mega GardevoirTimid · 32 SP · #20 on Showdown
161		IndeedeeTimid · 32 SP · #30 on Showdown
156		Hisuian ArcanineJolly · 32 SP · #16 on Showdown
150		ArchaludonTimid · 32 SP · #9 on Showdown
149		GholdengoTimid · 32 SP · #8 on Showdown
143		BasculegionJolly · 32 SP · #6 on Showdown
134		Cloyster · Max+32 SP, Speed-raising alignment
128		PelipperTimid · 32 SP · #12 on Showdown
122		Cloyster · Max32 SP, neutral alignment
120		VolcaronaBold · 0 SP · #25 on Showdown
105		RillaboomAdamant · 0 SP · #1 on Showdown
101		MiloticCalm · 0 SP · #15 on Showdown
95		SylveonModest · 15 SP · #18 on Showdown
94		Female IndeedeeRelaxed · 0 SP · #7 on Showdown
90		Cloyster · No SP0 SP, neutral alignment
90		PolitoedCalm · 0 SP · #22 on Showdown
90		SinistchaBold · 0 SP · #24 on Showdown
85		ArmarougeQuiet · 0 SP · #27 on Showdown
80		IncineroarCareful · 0 SP · #3 on Showdown
80		FarigirafBold · 0 SP · #11 on Showdown
70		KingambitAdamant · 0 SP · #5 on Showdown
60		Mega GolisopodAdamant · 0 SP · #10 on Showdown

Smogon · Showdown Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Abilities

This Pokémon cannot be struck by a .
Everything about Shell Armor →
Other Pokémon with Shell Armor 28
Mega Slowbro Shellder Krabby Kingler Lapras Omanyte Omastar Torkoal Corphish Crawdaunt Clamperl Turtwig Grotle Torterra Oshawott Dewott Samurott Mega Scolipede Dwebble Crustle Escavalier Shelmet Hisuian Sliggoo Hisuian Goodra Turtonator Chewtle Drednaw Klawf
This Pokémon's multi-hit attacks always hit the maximum number of times.
Everything about Skill Link →
Other Pokémon with Skill Link 9
Shellder Aipom Mega Heracross Ambipom Minccino Cinccino Pikipek Trumbeak Toucannon
This Pokémon is to , Sandstorm damage, and Effect Spore.
Everything about Overcoat →
Other Pokémon with Overcoat 22
Shellder Pineco Forretress Shelgon Burmy Wormadam Sewaddle Swadloon Leavanny Solosis Duosion Reuniclus Escavalier Shelmet Vullaby Mandibuzz Jangmo-o Hakamo-o Kommo-o Therian Enamorus Varoom Revavroom

Competitive

Smogon · Showdown On Showdown

Sep 2026

Other Showdown formats Scarlet & Violet, with Tera

SV SinglesNUBLSV Doubles(DUU)National DexRU

1.5% of teams · rank #102 · Singles, one type per team · 1630 weighting · 63,572 battles · Sep 2026

Most common build

Item: Focus Sash
Ability
Nature: Adamant
EVs: 4 HP / 252 Atk / 252 Spe

Each part is the most used on its own, so not every team runs this exact set.

Usage by rating

All games2.4%
1500 weighting1.9%
1630 weighting1.5%
1760 weighting0.9%

Usage by month

Oct 20251.5%

Moves

Items

Abilities

99.4%
0.4%
0.2%

EV spreads

Adamant 4 HP / 252 Atk / 252 Spe32.0%
Adamant 252 Atk / 4 SpD / 252 Spe18.5%
Naive 104 Atk / 152 SpA / 252 Spe15.9%
Naive 4 Atk / 252 SpA / 252 Spe6.6%
Jolly 252 Atk / 4 Def / 252 Spe6.3%

Common teammates

Evolution

#0090ShellderWater
1. Use Water Stone
  #0091CloysterWaterIce

Moves

Level up 18


Evo	Icicle SpearHits 2-5 times in one turn.	Ice	Phys	25	100%	30
1	Aurora Beam10% chance to lower the target's Attack by 1.	Ice	Spec	65	100%	20
1	Hydro PumpNo additional effect.	Water	Spec	110	80%	5
1	Ice Beam10% chance to freeze the target.	Ice	Spec	90	100%	10
1	Ice ShardUsually goes first.	Ice	Phys	40	100%	30
1	Icicle Crash30% chance to make the target flinch.	Ice	Phys	85	90%	10
1	Iron DefenseRaises the user's Defense by 2.	Steel	Status	—	—	15
1	LeerLowers the foe(s) Defense by 1.	Normal	Status	—	100%	30
1	ProtectPrevents moves from affecting the user this turn.	Normal	Status	—	—	10
1	Shell SmashLowers Def, SpD by 1; raises Atk, SpA, Spe by 2.	Normal	Status	—	—	15
1	SpikesHurts grounded foes on switch-in. Max 3 layers.	Ground	Status	—	—	20
1	SupersonicCauses the target to become confused.	Normal	Status	—	55%	20
1	TackleNo additional effect.	Normal	Phys	40	100%	35
1	Toxic SpikesPoisons grounded foes on switch-in. Max 2 layers.	Poison	Status	—	—	20
1	Water GunNo additional effect.	Water	Spec	40	100%	25
1	WhirlpoolTraps and damages the target for 4-5 turns.	Water	Spec	35	85%	15
1	WithdrawRaises the user's Defense by 1.	Water	Status	—	—	40
5	Razor Shell50% chance to lower the target's Defense by 1.	Water	Phys	75	95%	10

TM / HM / TR 39


TM01	Take DownHas 1/4 recoil.	Normal	Phys	90	85%	20
TM06	Scary FaceLowers the target's Speed by 2.	Normal	Status	—	100%	10
TM07	ProtectPrevents moves from affecting the user this turn.	Normal	Status	—	—	10
TM11	Water Pulse20% chance to confuse the target.	Water	Spec	60	100%	20
TM22	Chilling Water100% chance to lower the target's Attack by 1.	Water	Spec	50	100%	20
TM25	FacadePower doubles if user is burn/poison/paralyzed.	Normal	Phys	70	100%	20
TM32	SwiftThis move does not check accuracy. Hits foes.	Normal	Spec	60	—	20
TM34	Icy Wind100% chance to lower the foe(s) Speed by 1.	Ice	Spec	55	95%	15
TM35	Mud Shot100% chance to lower the target's Speed by 1.	Ground	Spec	55	95%	15
TM46	AvalanchePower doubles if user is damaged by the target.	Ice	Phys	60	100%	10
TM47	EndureUser survives attacks this turn with at least 1 HP.	Normal	Status	—	—	10
TM50	Rain DanceFor 5 turns, heavy rain powers Water moves.	Water	Status	—	—	5
TM52	SnowscapeFor 5 turns, snow falls. Ice: 1.5× Def.	Ice	Status	—	—	10
TM53	Smart StrikeThis move does not check accuracy.	Steel	Phys	70	—	10
TM66	Body Slam30% chance to paralyze the target.	Normal	Phys	85	100%	15
TM70	Sleep TalkUser must be asleep. Uses another known move.	Normal	Status	—	—	10
TM75	Light ScreenFor 5 turns, special damage to allies is halved.	Psychic	Status	—	—	30
TM76	Rock BlastHits 2-5 times in one turn.	Rock	Phys	25	90%	10
TM77	Waterfall20% chance to make the target flinch.	Water	Phys	80	100%	15
TM83	Poison Jab30% chance to poison the target.	Poison	Phys	80	100%	20
TM85	RestUser sleeps 2 turns and restores HP and status.	Psychic	Status	—	—	5
TM90	SpikesHurts grounded foes on switch-in. Max 3 layers.	Ground	Status	—	—	20
TM91	Toxic SpikesPoisons grounded foes on switch-in. Max 2 layers.	Poison	Status	—	—	20
TM103	SubstituteUser takes 1/4 its max HP to put in a substitute.	Normal	Status	—	—	10
TM104	Iron DefenseRaises the user's Defense by 2.	Steel	Status	—	—	15
TM106	Drill RunHigh critical hit ratio.	Ground	Phys	80	95%	10
TM110	Liquidation20% chance to lower the target's Defense by 1.	Water	Phys	85	100%	10
TM123	SurfHits adjacent Pokémon. Double damage on Dive.	Water	Spec	90	100%	15
TM124	Ice SpinnerEnds the effects of terrain.	Ice	Phys	80	100%	15
TM130	Helping HandOne adjacent ally's move power is 1.5× this turn.	Normal	Status	—	—	20
TM135	Ice Beam10% chance to freeze the target.	Ice	Spec	90	100%	10
TM142	Hydro PumpNo additional effect.	Water	Spec	110	80%	5
TM143	Blizzard10% chance to freeze foe(s). Can't miss in Snow.	Ice	Spec	110	70%	5
TM152	Giga ImpactUser cannot move next turn.	Normal	Phys	150	90%	5
TM163	Hyper BeamUser cannot move next turn.	Normal	Spec	150	90%	5
TM171	Tera BlastIf Terastallized: Phys. if Atk > SpA, type = Tera.	Normal	Spec	80	100%	10
TM187	Icicle SpearHits 2-5 times in one turn.	Ice	Phys	25	100%	30
TM193	Weather BallPower doubles and type varies in each weather.	Normal	Spec	50	100%	10
TM208	WhirlpoolTraps and damages the target for 4-5 turns.	Water	Spec	35	85%	15

Biology

It normally keeps its shell closed unless it is attacking. It uses the same projectile system — swallowing seawater and ejecting it from the front or rear — to shoot its spikes and swim. Its internal anatomy has yet to be seen.

Adapted from Wikipedia: List of generation I Pokémon · CC BY-SA 4.0 · edited.

Polls & views

Official vote, Japan#433 of 720 in the 2016 Pokémon General Election 720 (Japan), tiedOfficial results, via Cinematoday

Each line is one source, as it published it. Polls counted every form under its species.

Pokédex entries

: Bivalve Pokémon
: Kanto · Red & Green (JP)
Color: Purple

: Sea
Pal Park area: Sea

Kanto#091Original Johto#170Updated Johto#172Coastal Kalos#037Original Alola#116Original Melemele#116Updated Alola#139Updated Melemele#139Let’s Go Kanto#091Galar#151Isle of Armor#132Paldea#330

For protection, it uses its harder-than-diamond shell. It also shoots spikes from the shell.
Let’s Go, Pikachu! · Let’s Go, Eevee!
Slowpoke tails are its favorite food. It has even been known to come up on land to look for Slowpoke from time to time.
Ultra Moon
If areas of Cloyster’s very hard shell get damaged, those areas swell, gradually growing into large sharp spikes.
Ultra Sun
Excavation of the tombs of ancient hunting tribes has turned up many spears tipped with spikes that had fallen off this Pokémon’s shell.
Moon
Its hard shell cannot be shattered—not even by a bomb. The contents of the shell remain unknown.
Sun
It fights by keeping its shell tightly shut for protection and by shooting spikes to repel foes.
Diamond · Pearl · Platinum · Black · White · Black 2 · White 2
Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.
FireRed · Y · Sword
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.
Emerald
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.
Ruby · Sapphire · Omega Ruby · Alpha Sapphire
Even a missile can't break the spikes it uses to stab opponents. They're even harder than its shell.
Crystal
CLOYSTER that live in seas with harsh tidal currents grow large, sharp spikes on their shells.
Silver · SoulSilver · X
Once it slams its shell shut, it is impossible to open, even by those with superior strength.
Gold · HeartGold · Shield
For protection, it uses its harder- than-diamonds shell. It also shoots spikes from the shell.
Yellow
When attacked, it launches its horns in quick volleys. Its innards have never been seen.
Red · Blue · LeafGreen

Names around the world

English: Cloyster
Japanese: パルシェン
Japanese (romaji): Parshen
Korean: 파르셀
Chinese (Traditional): 刺甲貝
Chinese (Simplified): 刺甲贝
French: Crustabri
German: Austos
Spanish: Cloyster
Italian: Cloyster

Sprites

Artwork and 3D models

Gen IX · Gen VIII · Gen VII · Gen VI

Generation V

Generation IV

Generation III

Generation II

Generation I

Training

: 2 Def
: 60 ≈7.8% with a Poké Ball at full HP
: 70
: 184
: Slow

Breeding

: Water 3
: ♂ 50%♀ 50%
: 20 egg cycles ≈5,355 steps (Gen IV–VII)

Where to find

Evolves from Shellder: Use Water Stone.

Shield: The Isle of Armor 9 areas

Challenge BeachSpecial overworld spawn in a fixed location in the water. · Lv 42–60
Challenge Beach (Max Den G)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Courageous CavernFishing at bubbling spots in the water · Lv 16–60
Fields of Honor (Max Den J)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Insular Sea (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Loop LagoonFishing at bubbling spots in the water, Special overworld spawn in a fixed location in the water. · Lv 19–60
Loop Lagoon (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Stepping-Stone Sea (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Workout Sea (Max Den G)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60

Sword: The Isle of Armor 9 areas

Challenge BeachSpecial overworld spawn in a fixed location in the water. · Lv 42–60
Challenge Beach (Max Den G)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Courageous CavernFishing at bubbling spots in the water · Lv 16–60
Fields of Honor (Max Den J)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Insular Sea (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Loop LagoonFishing at bubbling spots in the water, Special overworld spawn in a fixed location in the water. · Lv 19–60
Loop Lagoon (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Stepping-Stone Sea (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60
Workout Sea (Max Den G)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 55–60

Shield 13 areas

Dusty Bowl (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Dusty Bowl (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
East Lake AxewellSpecial overworld spawn in a fixed location in the water. · Lv 46–60
Giant's SeatFishing at bubbling spots in the water · Lv 30–60
North Lake Miloch (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–60
North Lake Miloch (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–60
South Lake Miloch (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–60
South Lake Miloch (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–60
Stony Wilderness (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
West Lake AxewellSpecial overworld spawn in a fixed location in the water. · Lv 46–60
West Lake Axewell (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
West Lake Axewell (Max Den B)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
West Lake Axewell (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60

Sword 13 areas

Dusty Bowl (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
Dusty Bowl (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
East Lake AxewellSpecial overworld spawn in a fixed location in the water. · Lv 46–60
Giant's SeatFishing at bubbling spots in the water · Lv 30–60
North Lake Miloch (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
North Lake Miloch (Max Den F)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
South Lake Miloch (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
South Lake Miloch (Max Den E)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
Stony Wilderness (Max Den D)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 35–50
West Lake AxewellSpecial overworld spawn in a fixed location in the water. · Lv 46–60
West Lake Axewell (Max Den A)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
West Lake Axewell (Max Den B)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60
West Lake Axewell (Max Den C)Catch a wild Dynamax or Gigantamax Pokémon in a Max Raid battle. · Lv 45–60

Let’s Go, Eevee! 2 areas

Seafoam Islands (B3F)Surfing in the overworld · Lv 39–44
Seafoam Islands (B4F)Surfing in the overworld · Lv 39–44

Let’s Go, Pikachu! 2 areas

Seafoam Islands (B3F)Surfing in the overworld · Lv 39–44
Seafoam Islands (B4F)Surfing in the overworld · Lv 39–44

Y 2 areas

Friend Safari (Ice)Walking in tall grass or a cave · Lv 30
Road 8Fishing with a Super Rod · Lv 35

X 1 area

Friend Safari (Ice)Walking in tall grass or a cave · Lv 30

White 2 4 areas

Humilau CityFishing in dark spots · Lv 50–70
Road 13Fishing in dark spots · Lv 50–70
Seaside Cave (1F)Fishing in dark spots · Lv 50–70
Undella TownFishing in dark spots · Lv 50–70

Black 2 4 areas

Humilau CityFishing in dark spots · Lv 50–70
Road 13Fishing in dark spots · Lv 50–70
Seaside Cave (1F)Fishing in dark spots · Lv 50–70
Undella TownFishing in dark spots · Lv 50–70

White 3 areas

Road 13Fishing in dark spots · Lv 45–70
Undella BayFishing in dark spots · Lv 45–70
Undella TownFishing in dark spots · Lv 45–70

Black 3 areas

Road 13Fishing in dark spots · Lv 45–70
Undella BayFishing in dark spots · Lv 45–70
Undella TownFishing in dark spots · Lv 45–70

Locations cover Red & Blue to Sword & Shield (with its DLC) and Let’s Go. We don’t have them yet for Legends: Arceus, Brilliant Diamond & Shining Pearl, Scarlet & Violet and Legends: Z-A.

Cloyster

Weak to

Resists