Cloyster
The Water/Ice type Pokemon. Explore its data in Red & Blue.
National #91• Red & Blue #91

WaterIce
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%
Viewing Red & Blue Version
This page shows data specific to this game only
Stats
95
180
50
85
45
70
Total
525
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.
2×/4×Super effective
½×/¼×Not very effective
0×No effect
—Normal damage
| 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.
Your damage:×1Even
Tip: Dual-type opponents combine both types. For example, an Electric move deals ×4 to a Water/Flying opponent.
Evolutions

#90
Shellder
Water
Use Item
Water Stone
Pokémon Moves by Learning Method
| 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 | - | - |
| Spike Cannon | 50 | Normal | Physical | 20 | 100 |