poke.study

No. 0091

Cloyster

Bivalve Pokémon

Cloyster
Official art
WaterIce
Height
1.5 m 4′11″
Weight
132.5 kg 292.1 lbs
Base stat total
525 top 20%
Introduced
Gen I
Abilities
Pokédex entryHeartGold / Shield
Once it slams its shell shut, it is impossible to open, even by those with superior strength.
See all 14 entries

Base stats

HP50110–157210–304
Atk9590–161175–317
Def180166–255328–504
SpA8581–150157–295
SpD4545–10685–207
Spe7067–134130–262
Total525Higher than 80% of all Pokémon
HP50Atk95Def180Spe70SpD45SpA85

Ranges: 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

Speed tiers

Speed at Lv 50 in Pokémon Champions (base 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.

  1. 203Mega Garchomp ZModest · 32 SP · #21 in usage
  2. 200Mega GengarTimid · 32 SP · #26 in usage
  3. 190Mega Raichu YTimid · 23 SP · #13 in usage
  4. 189Mega SalamenceTimid · 32 SP · #4 in usage
  5. 184WhimsicottTimid · 32 SP · #23 in usage
  6. 178Mega MetagrossJolly · 32 SP · #28 in usage
  7. 178Mega StaraptorJolly · 32 SP · #29 in usage
  8. 172SneaslerAdamant · 32 SP · #2 in usage
  9. 169Mega FloetteTimid · 32 SP · #17 in usage
  10. 169GarchompJolly · 32 SP · #19 in usage
  11. 167Mega Charizard YTimid · 32 SP · #14 in usage
  12. 167Mega GardevoirTimid · 32 SP · #20 in usage
  13. 161IndeedeeTimid · 32 SP · #30 in usage
  14. 156Hisuian ArcanineJolly · 32 SP · #16 in usage
  15. 150ArchaludonTimid · 32 SP · #9 in usage
  16. 149GholdengoTimid · 32 SP · #8 in usage
  17. 143BasculegionJolly · 32 SP · #6 in usage
  18. 134Cloyster · Max+32 SP, Speed-raising alignment
  19. 128PelipperTimid · 32 SP · #12 in usage
  20. 122Cloyster · Max32 SP, neutral alignment
  21. 120VolcaronaBold · 0 SP · #25 in usage
  22. 105RillaboomAdamant · 0 SP · #1 in usage
  23. 101MiloticCalm · 0 SP · #15 in usage
  24. 95SylveonModest · 15 SP · #18 in usage
  25. 94Female IndeedeeRelaxed · 0 SP · #7 in usage
  26. 90Cloyster · No SP0 SP, neutral alignment
  27. 90PolitoedCalm · 0 SP · #22 in usage
  28. 90SinistchaBold · 0 SP · #24 in usage
  29. 85ArmarougeQuiet · 0 SP · #27 in usage
  30. 80IncineroarCareful · 0 SP · #3 in usage
  31. 80FarigirafBold · 0 SP · #11 in usage
  32. 70KingambitAdamant · 0 SP · #5 in usage
  33. 60Mega GolisopodAdamant · 0 SP · #10 in usage

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.

Type matchups

Weak to

Electric2×Fighting2×Grass2×Rock2×

Resists

Ice¼×Water½×
Takes normal damage from 12 types
NormalFlyingPoisonGroundBugGhostSteelFirePsychicDragonDarkFairy

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.

Competitive

SV SinglesNUBLSV Doubles(DUU)National DexRU

1.46% of teams · rank #102 · Singles, one type per team · 1630+ rating · 63,572 battles · Sep 2026

Most common build

Item
Focus Sash
Ability
Skill Link
Nature
Adamant
EVs
4 HP / 252 Atk / 252 Spe
  1. Shell Smash
  2. Icicle Spear
  3. Rock Blast
  4. Ice Shard

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

Usage by rating

  • All players2.35%
  • Rated 1500+1.87%
  • Rated 1630+1.46%
  • Rated 1760+0.94%

Usage by month

Oct 20251.46%

Moves

  • Shell Smash99.7%
  • Icicle Spear99.5%
  • Rock Blast73.9%
  • Ice Shard51.4%
  • Drill Run27.8%
  • Hydro Pump23.7%
  • Liquidation9.4%
  • Surf6.8%
  • Ice Beam3%
  • Toxic Spikes1.5%

Items

  • Focus Sash52.5%
  • Heavy-Duty Boots23.3%
  • White Herb21.8%
  • Soft Sand0.8%
  • Mystic Water0.8%
  • Never-Melt Ice0.2%

Abilities

  • 99.4%
  • 0.4%
  • 0.2%

EV spreads

  • Adamant 4 HP / 252 Atk / 252 Spe32%
  • 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

  1. #0090ShellderWater
    1. Use Water Stone#0091CloysterWaterIce

Moves

Level up 18

EvoIcicle SpearHits 2-5 times in one turn.IcePhys25100%30
1Aurora BeamHas a 10% chance to lower the target’s Attack by one stage.IceSpec65100%20
1Hydro PumpInflicts regular damage with no additional effect.WaterSpec11080%5
1Ice BeamHas a 10% chance to freeze the target.IceSpec90100%10
1Ice ShardInflicts regular damage with no additional effect.IcePhys40100%30
1Icicle CrashHas a 30% chance to make the target flinch.IcePhys8590%10
1Iron DefenseRaises the user’s Defense by two stages.SteelStatus——15
1LeerLowers the target’s Defense by one stage.NormalStatus—100%30
1ProtectPrevents any moves from hitting the user this turn.NormalStatus——10
1Shell SmashRaises user’s Attack, Special Attack, and Speed by two stages. Lower user’s Defense and Special Defense by one stage.NormalStatus——15
1SpikesScatters Spikes, hurting opposing Pokémon that switch in.GroundStatus——20
1SupersonicConfuses the target.NormalStatus—55%20
1TackleInflicts regular damage with no additional effect.NormalPhys40100%35
1Toxic SpikesScatters poisoned spikes, poisoning opposing Pokémon that switch in.PoisonStatus——20
1Water GunInflicts regular damage with no additional effect.WaterSpec40100%25
1WhirlpoolPrevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.WaterSpec3585%15
1WithdrawRaises the user’s Defense by one stage.WaterStatus——40
5Razor ShellHas a 50% chance to lower the target’s Defense by one stage.WaterPhys7595%10

TM / HM / TR 39

TM01Take DownUser receives 1/4 the damage it inflicts in recoil.NormalPhys9085%20
TM06Scary FaceLowers the target’s Speed by two stages.NormalStatus—100%10
TM07ProtectPrevents any moves from hitting the user this turn.NormalStatus——10
TM11Water PulseHas a 20% chance to confuse the target.WaterSpec60100%20
TM22Chilling WaterThe user attacks the target by showering it with water that's so cold it saps the target's power. This also lowers the target's Attack stat.WaterSpec50100%20
TM25FacadePower doubles if user is burned, paralyzed, or poisoned.NormalPhys70100%20
TM32SwiftNever misses.NormalSpec60—20
TM34Icy WindHas a 100% chance to lower the target’s Speed by one stage.IceSpec5595%15
TM35Mud ShotHas a 100% chance to lower the target’s Speed by one stage.GroundSpec5595%15
TM46AvalancheInflicts double damage if the user takes damage before attacking this turn.IcePhys60100%10
TM47EndurePrevents the user’s HP from lowering below 1 this turn.NormalStatus——10
TM50Rain DanceChanges the weather to rain for five turns.WaterStatus——5
TM52SnowscapeThe user summons a snowstorm lasting five turns. This boosts the Defense stats of Ice types.IceStatus——10
TM53Smart StrikeNever misses.SteelPhys70—10
TM66Body SlamHas a 30% chance to paralyze the target.NormalPhys85100%15
TM70Sleep TalkRandomly uses one of the user’s other three moves. Only works if the user is sleeping.NormalStatus——10
TM75Light ScreenReduces damage from special attacks by 50% for five turns.PsychicStatus——30
TM76Rock BlastHits 2-5 times in one turn.RockPhys2590%10
TM77WaterfallHas a 20% chance to make the target flinch.WaterPhys80100%15
TM83Poison JabHas a 30% chance to poison the target.PoisonPhys80100%20
TM85RestUser sleeps for two turns, completely healing itself.PsychicStatus——5
TM90SpikesScatters Spikes, hurting opposing Pokémon that switch in.GroundStatus——20
TM91Toxic SpikesScatters poisoned spikes, poisoning opposing Pokémon that switch in.PoisonStatus——20
TM103SubstituteTransfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.NormalStatus——10
TM104Iron DefenseRaises the user’s Defense by two stages.SteelStatus——15
TM106Drill RunHas an increased chance for a critical hit.GroundPhys8095%10
TM110LiquidationHas a 20% chance to lower the target’s Defense by one stage.WaterPhys85100%10
TM123SurfInflicts regular damage and can hit Dive users.WaterSpec90100%15
TM124Ice SpinnerThe user covers its feet in thin ice and twirls around, slamming into the target. This move's spinning motion also destroys the terrain.IcePhys80100%15
TM130Helping HandAlly’s next move inflicts half more damage.NormalStatus——20
TM135Ice BeamHas a 10% chance to freeze the target.IceSpec90100%10
TM142Hydro PumpInflicts regular damage with no additional effect.WaterSpec11080%5
TM143BlizzardHas a 10% chance to freeze the target.IceSpec11070%5
TM152Giga ImpactUser foregoes its next turn to recharge.NormalPhys15090%5
TM163Hyper BeamUser foregoes its next turn to recharge.NormalSpec15090%5
TM171Tera BlastIf the user has Terastallized, it unleashes energy of its Tera Type. This move inflicts damage using the Attack or Sp. Atk stat—whichever is higher for the user.NormalSpec80100%10
TM187Icicle SpearHits 2-5 times in one turn.IcePhys25100%30
TM193Weather BallIf there be weather, this move has doubled power and the weather’s type.NormalSpec50100%10
TM208WhirlpoolPrevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.WaterSpec3585%15

Pokédex entries

Category
Bivalve Pokémon
Debut
Kanto · Red & Green (JP)
Color
Purple
Shape
Habitat
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

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

    Let’s Go, Pikachu! · Let’s Go, Eevee!

  2. 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

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

    Ultra Sun

  4. 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

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

    Sun

  6. 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

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

    FireRed · Y · Sword

  8. 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

  9. 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

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

    Crystal

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

    Silver · SoulSilver · X

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

    Gold · HeartGold · Shield

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

    Yellow

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

    Red · Blue · LeafGreen

Names around the world

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

Tap any sprite to show it on the Pokédex above. ▶ marks official animations; Gen VIII–IX models are large, so they load only when you tap them.

Official artwork

3D models

Generation I

Generation II

Generation III

Generation IV

Generation V

Generation VI

Generation VII

Generation VIII · animated models

Generation IX · animated models

Training

EV yield
2 Def
Catch rate
60 ≈7.8% with a Poké Ball at full HP
Base friendship
70
Base experience
184
Growth rate
Slow

Breeding

Egg groups
Water 3
Gender
♂ 50%♀ 50%
Hatch time
20 egg cycles ≈5,355 steps (Gen IV–VII)

Where to find

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