Cloyster
The Water/Ice type Pokemon. Discover comprehensive stats, moves, and evolutions across all games.
National #91• Available in 11 game versions

Pokemon Details
Species: Bivalve Pokémon
Height: 1.5 m
Weight: 132.5 kg
Abilities:
Training
EV Yield: 2 Defense
Catch Rate: 60
Base Friendship: 50
Base Exp: 184
Growth Rate: Slow
Breeding
Egg Groups:
- Water 3
Egg Cycles (Steps):
- Min: 4884
- Max: 5140
Gender:
- Male: 50%
- Female: 50%
Available Game Versions
Click a game to view specific dataStats
Type Guide
See the full type chart →This Pokémon's type(s) are highlighted below. Read across a highlighted row for its move effectiveness, and down a highlighted column for how much damage it takes.
| Atk ⬇ / Def ➡ | Normal | Fire | Water | Electric | Grass | Ice | Fighting | Poison | Ground | Psychic | Bug | Rock | Ghost | Dragon | Dark | Steel | Fairy | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Normal | — | — | — | — | — | — | — | — | — | — | — | — | ½× | 0× | — | — | ½× | — |
| Fire | — | ½× | ½× | — | 2× | 2× | — | — | — | — | — | 2× | ½× | — | ½× | — | 2× | — |
| Water | — | 2× | ½× | — | ½× | — | — | — | 2× | — | — | — | 2× | — | ½× | — | — | — |
| Electric | — | — | 2× | ½× | ½× | — | — | — | 0× | 2× | — | — | — | — | ½× | — | — | — |
| Grass | — | ½× | 2× | — | ½× | — | — | ½× | 2× | ½× | — | ½× | 2× | — | ½× | — | ½× | — |
| Ice | — | ½× | ½× | — | 2× | ½× | — | — | 2× | 2× | — | — | — | — | 2× | — | ½× | — |
| Fighting | 2× | — | — | — | — | 2× | — | ½× | — | ½× | ½× | ½× | 2× | 0× | — | 2× | 2× | ½× |
| Poison | — | — | — | — | 2× | — | — | ½× | ½× | — | — | — | ½× | ½× | — | — | 0× | 2× |
| Ground | — | 2× | — | 2× | ½× | — | — | 2× | — | 0× | — | ½× | 2× | — | — | — | 2× | — |
| — | — | — | ½× | 2× | — | 2× | — | — | — | — | 2× | ½× | — | — | — | ½× | — | |
| Psychic | — | — | — | — | — | — | 2× | 2× | — | — | ½× | — | — | — | — | 0× | ½× | — |
| Bug | — | ½× | — | — | 2× | — | ½× | ½× | — | ½× | 2× | — | — | ½× | — | 2× | ½× | ½× |
| Rock | — | 2× | — | — | — | 2× | ½× | — | ½× | 2× | — | 2× | — | — | — | — | ½× | — |
| Ghost | 0× | — | — | — | — | — | — | — | — | — | 2× | — | — | 2× | — | ½× | — | — |
| Dragon | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2× | — | ½× | 0× |
| Dark | — | — | — | — | — | — | ½× | — | — | — | 2× | — | — | 2× | — | ½× | — | ½× |
| Steel | — | ½× | ½× | ½× | — | 2× | — | — | — | — | — | — | 2× | — | — | — | ½× | 2× |
| Fairy | — | ½× | — | — | — | — | 2× | ½× | — | — | — | — | — | — | 2× | 2× | ½× | — |
Try a matchup
Pick the opponent’s types to see how your moves perform.
Tip: Dual-type opponents combine both types. For example, an Electric move deals ×4 to a Water/Flying opponent.
Evolutions

#90
Shellder
Use Item
Pokémon Moves by Learning Method
Moves from All Games
The moves shown below are collected from all games where Cloyster appears. These may not match the specific moveset available in your game. Select a specific game version above to see the exact moves for that game.
| Name | Level | Type | Category | Power | Accuracy |
|---|---|---|---|---|---|
| Aurora Beam | 1 | Ice | Special | 65 | 100 |
| Clamp | 1 | Water | Special | 35 | 75 |
| Supersonic | 1 | Normal | Status | - | 55 |
| Withdraw | 1 | Water | Status | - | - |
| Protect | 1 | Normal | Status | - | - |
| Toxic Spikes | 1 | Poison | Status | - | - |
| Shell Smash | 1 | Normal | Status | - | - |
| Hydro Pump | 1 | Water | Special | 110 | 80 |
| Tackle | 1 | Normal | Physical | 40 | 100 |
| Water Gun | 1 | Water | Special | 40 | 100 |
| Whirlpool | 1 | Water | Special | 35 | 85 |
| Ice Beam | 1 | Ice | Special | 90 | 100 |
| Ice Shard | 1 | Ice | Physical | 40 | 100 |
| Icicle Spear | 1 | Ice | Physical | 25 | 100 |
| Iron Defense | 1 | Steel | Status | - | - |
| Leer | 1 | Normal | Status | - | 100 |
| Razor Shell | 1 | Water | Physical | 75 | 95 |
| Spikes | 33 | Ground | Status | - | - |
| Spike Cannon | 50 | Normal | Physical | 20 | 100 |
| Icicle Crash | 50 | Ice | Physical | 85 | 90 |
Game Locations
| Game | Location |
|---|---|
| Blue | Evolve Shellder - Evolution evolution-only - Evolution |
| Leafgreen | Trade/migrate From Another Game - Wild evolution-only - Evolution |
| X | Trade/migrate From Another Game - Wild friend-safari-ice - Walk |
| Y | Route 8 - Wild friend-safari-ice - Walk kalos-route-8-area - Super-rod |
| Shield | Courageous Cavern - Wild Giant's Seat - Wild Loop Lagoon - Wild east-lake-axewell-area - Overworld-water-special giants-seat-area - Bubbling-spots west-lake-axewell-area - Overworld-water-special |
| Scarlet | Casseroya Lake - Wild East Paldean Sea - Wild East Province (Area One) - Wild East Province (Area Three) - Wild East Province (Area Two) - Wild Glaseado Mountain - Wild North Paldean Sea - Wild North Province (Area One) - Wild North Province (Area Three) - Wild South Paldean Sea - Wild South Province (Area Five) - Wild South Province (Area Four) - Wild South Province (Area One) - Wild South Province (Area Six) - Wild West Paldean Sea - Wild West Province (Area One) - Wild West Province (Area Two) - Wild evolution-only - Evolution |
Pokedex Entries
| Game | Entry |
|---|---|
| Red | When attacked, it launches its horns in quick volleys. Its innards have never been seen. |
| 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. |
| Gold | Once it slams its shell shut, it is impossible to open, even by those with superior 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 harder than its shell. |
| 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. |
| 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. |
| 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. |
| 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. |
| UltraSun | If areas of Cloyster’s very hard shell get damaged, those areas swell, gradually growing into large sharp spikes. |
| UltraMoon | Slowpoke tails are its favorite food. It has even been known to come up on land to look for Slowpoke from time to time. |
| 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. |
| Scarlet | Cloyster that live in seas with harsh tidal currents grow large, sharp spikes on their shells. |
| Violet | When attacked, it launches its spikes in quick volleys. Its innards have never been seen. |