Shell Smash Sweeper
RUItem
White Herb / Heavy-Duty Boots
White Herb / Heavy-Duty BootsAbilitySkill Link
NatureAdamant+Atk/−SpA
TeraElectricGhost
EV spread
Atk▲252
SpA▼4
Spe252
#0091
Cloyster
Bivalve Pokémon
Once it slams its shell shut, it is impossible to open, even by those with superior strength.
Details
Height1.5 m
Weight132.5 kg
Gender50.0% ♂ · 50.0% ♀
Catch rate60(14.8%)Tricky
Base friendship70Standard
Hatch time20 cycles · ~5,355 steps
Growth rateslow
Base EXP184
Base stats
HP
50
Attack
95
Defense
180
Sp. Atk
85
Sp. Def
45
Speed
70
Total
525
Base Stat Total
Competitive movesets
Smogon UniversityBattle-ready sets by tier, straight from Smogon. Pick a generation and format — a “/” means either option works in that slot.
Source: Smogon (via pkmn) · Data snapshot: Jul 31, 2026 · 18,880 rows
Where to find Cloyster
Wild encounter locations across the games. Availability may also include trades, evolution, gifts, and events not listed here.
Let's Go Pikachu
Let's Go Eevee
Evolution
Water Stone
Notable moves
The strongest damaging moves Cloyster can learn — same-type (STAB) moves get a 1.5× power bonus in battle.
Moves
| Lv. | Move & effect | Type | Class | Power | Acc. | PP |
|---|---|---|---|---|---|---|
| 0 | Icicle Spear Hits 2-5 times in one turn. | Ice | Physical | 25 | 100 | 30 |
| 1 | Aurora Beam Has a chance to lower the target’s Attack by one stage. | Ice | Special | 65 | 100 | 20 |
| 1 | Barrier Raises the user’s Defense by two stages. | Psychic | Status | — | — | 20 |
| 1 | Clamp Prevents the target from fleeing and inflicts damage for 2-5 turns. | Water | Physical | 35 | 85 | 15 |
| 1 | Hydro Pump Inflicts regular damage with no additional effect. | Water | Special | 110 | 80 | 5 |
| 1 | Ice Beam Has a chance to freeze the target. | Ice | Special | 90 | 100 | 10 |
| 1 | Ice Shard Inflicts regular damage with no additional effect. | Ice | Physical | 40 | 100 | 30 |
| 1 | Icicle Crash Has a chance to make the target flinch. | Ice | Physical | 85 | 90 | 10 |
| 1 | Iron Defense Raises the user’s Defense by two stages. | Steel | Status | — | — | 15 |
| 1 | Leer Lowers the target’s Defense by one stage. | Normal | Status | — | 100 | 30 |
| 1 | Protect Prevents any moves from hitting the user this turn. | Normal | Status | — | — | 10 |
| 1 | Shell Smash Raises user’s Attack, Special Attack, and Speed by two stages. Lower user’s Defense and Special Defense by one stage. | Normal | Status | — | — | 15 |
| 1 | Spikes Scatters Spikes, hurting opposing Pokémon that switch in. | Ground | Status | — | — | 20 |
| 1 | Supersonic Confuses the target. | Normal | Status | — | 55 | 20 |
| 1 | Tackle Inflicts regular damage with no additional effect. | Normal | Physical | 40 | 100 | 35 |
| 1 | Toxic Spikes Scatters poisoned spikes, poisoning opposing Pokémon that switch in. | Poison | Status | — | — | 20 |
| 1 | Twineedle Hits twice in the same turn. Has a chance to poison the target. | Bug | Physical | 25 | 100 | 20 |
| 1 | Water Gun Inflicts regular damage with no additional effect. | Water | Special | 40 | 100 | 25 |
| 1 | Whirlpool Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns. | Water | Special | 35 | 85 | 15 |
| 1 | Withdraw Raises the user’s Defense by one stage. | Water | Status | — | — | 40 |
| 5 | Razor Shell Has a chance to lower the target’s Defense by one stage. | Water | Physical | 75 | 95 | 10 |
| 50 | Spike Cannon Hits 2-5 times in one turn. | Normal | Physical | 20 | 100 | 15 |
Sprites & renders
25 sprites & renders for Cloyster.
Across the games
More Water-type Pokémon
Others that share this Pokémon's primary type.
#0484
#0382
#0490
#0721
#1009
#0245
All Water-type Pokémon Palkia
WaterDragon
Total680
Kyogre
Water
Total670
Manaphy
Water
Total600
Volcanion
FireWater
Total600
Walking Wake
WaterDragon
Total590
Suicune
Water
Total580
Community notes
No reader notes on Cloyster yet.
Cite this page
“Cloyster”. Pokémonism. Retrieved [date] from pokemonism.com/pokedex/cloyster.
Species data from PokéAPI.