
| Id | 91 |
| Type | waterice |
| Species | Bivalve Pokémon |
| Height | 1.5 m |
| Weight | 132.5 kg |
| Abilities | Shell Armor, Skill Link Hidden Ability: Overcoat |
| Local Ids | 91 (Red/Blue/Yellow) 170 (Gold/Silver/Crystal) 91 (FireRed/LeafGreen) 172 (HeartGold/SoulSilver) 37 (X/Y — Coastal Kalos) 116 (Sun/Moon — Alola dex) 139 (U.Sun/U.Moon — Alola dex) 91 (Let's Go Pikachu/Let's Go Eevee) 151 (Sword/Shield) 132 (The Isle of Armor) |
| Catch rate | 60 |
| Base Friendship | 50 (normal) |
| Base Exp | 184 |
| Growth Rate | Slow |
| Egg Groups | Water 3 |
| Gender | 50% male, 50% female |
| Egg cycles | 20 (4,884–5,140 steps) |
| HP | 50 | |
| Attack | 95 | |
| Defense | 180 | |
| Sp. Atk | 85 | |
| Sp. Def | 45 | |
| Speed | 70 | |
| Total | 525 |
| Level | Move | Type | Category | Power | Accuracy |
|---|---|---|---|---|---|
| 1 | Aurora Beam | ice | special | 65 | 100 |
| 1 | Hydro Pump | water | special | 110 | 80 |
| 1 | Ice Beam | ice | special | 90 | 100 |
| 1 | Ice Shard | ice | physical | 40 | 100 |
| 1 | Icicle Crash | ice | physical | 85 | 90 |
| 1 | Icicle Spear | ice | physical | 25 | 100 |
| 1 | Iron Defense | steel | status | 0 | — |
| 1 | Leer | normal | status | 0 | 100 |
| 1 | Protect | normal | status | 0 | — |
| 1 | Razor Shell | water | physical | 75 | 95 |
| 1 | Shell Smash | normal | status | 0 | — |
| 1 | Spikes | ground | status | 0 | — |
| 1 | Supersonic | normal | status | 0 | 55 |
| 1 | Tackle | normal | physical | 40 | 100 |
| 1 | Toxic Spikes | poison | status | 0 | — |
| 1 | Water Gun | water | special | 40 | 100 |
| 1 | Whirlpool | water | special | 35 | 85 |
| 1 | Withdraw | water | status | 0 | — |
| Move | Type | Category | Power | Accuracy |
|---|---|---|---|---|
| Icicle Spear | ice | physical | 25 | 100 |
| Move | Type | Category | Power | Accuracy |
|---|---|---|---|---|
| Aqua Ring | water | status | 0 | — |
| Bubble Beam | water | special | 65 | 100 |
| Icicle Spear | ice | physical | 25 | 100 |
| Life Dew | water | status | 0 | — |
| Mud Shot | ground | special | 55 | 95 |
| Rapid Spin | normal | physical | 50 | 100 |
| Rock Blast | rock | physical | 25 | 90 |
| Screech | normal | status | 0 | 85 |
| Take Down | normal | physical | 90 | 85 |
Cloyster can not have any move tutor moves.
| TM | Move | Type | Category | Power | Accuracy |
|---|---|---|---|---|---|
| 3 | Water Pulse | water | special | 60 | 100 |
| 7 | Hail | ice | status | 0 | — |
| 13 | Ice Beam | ice | special | 90 | 100 |
| 14 | Blizzard | ice | special | 110 | 70 |
| 15 | Hyper Beam | normal | special | 150 | 90 |
| 16 | Light Screen | psychic | status | 0 | — |
| 17 | Protect | normal | status | 0 | — |
| 18 | Rain Dance | water | status | 0 | — |
| 32 | Double Team | normal | status | 0 | — |
| 41 | Torment | dark | status | 0 | 100 |
| 42 | Facade | normal | physical | 70 | 100 |
| 44 | Rest | psychic | status | 0 | — |
| 45 | Attract | normal | status | 0 | 100 |
| 55 | Brine | water | special | 65 | 100 |
| 58 | Endure | normal | status | 0 | — |
| 64 | Explosion | normal | physical | 250 | 100 |
| 66 | Payback | dark | physical | 50 | 100 |
| 68 | Giga Impact | normal | physical | 150 | 90 |
| 72 | Avalanche | ice | physical | 60 | 100 |
| 82 | Sleep Talk | normal | status | 0 | — |
| 84 | Poison Jab | poison | physical | 80 | 100 |
| 87 | Swagger | normal | status | 0 | 85 |
| 90 | Substitute | normal | status | 0 | — |
| 95 | Surf | water | special | 90 | 100 |
Cloyster can not get any moves from trs.
| English | Cloyster |
|---|---|
| Spanish | Cloyster |
| Italian | Cloyster |
| Japanese | パルシェン (Parshen) |
| German | Austos |
| French | Crustabri |
| Red Blue Yellow | Shellder |
|---|---|
| Gold Silver Crystal | Shellder |
| Ruby Sapphire | Trade/migrate from another game |
| FireRed | Shellder |
| LeafGreen Emerald | Trade/migrate from another game |
| Diamond Pearl Platinum HeartGold SoulSilver | Shellder |
| Black White | Route 13, Undella Bay, Undella Town |
| Black 2 White 2 | Route 13, Undella Town, Humilau City, Seaside Cave |
| X | Trade/migrate from another game |
| Y | Route 8 |
| Omega Ruby Alpha Sapphire | Trade/migrate from another game |
| Sun Moon Ultra Sun Ultra Moon | Shellder |
| Let's Go Pikachu Let's Go Eevee | Seafoam Islands |
| Sword Shield | Giant's Seat, Courageous Cavern, Loop Lagoon |
| Brilliant Diamond Shining Pearl | Shellder |