Cloyster
#151 in the Sword and Shield Pokédex • Bivalve Pokémon
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.
Pokédexes
Egg Group
Steps to Hatch
Effort Values Yielded
Gender Ratio
Capture Rate
Base Experience
| Pokémon | Requires | Evolution |
|---|---|---|
![]() Shellder #150 | Use Water Stone | ![]() Cloyster #151 |

Normal

Shiny
Cloyster
Bivalve Pokémon


HP
50
Attack
95
Defense
180
Sp. Atk
85
Sp. Def
45
Speed
70
Total
525
Type Chart
Weaknesses
Takes 2× from




Resistances
Takes 0.25× from

Takes 0.5× from

| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Icicle Spear | ![]() | Physical | 25 | 100 | 30 | The user launches sharp icicles at the target two to five times in a row. |
| Start | Tackle | ![]() | Physical | 40 | 100 | 35 | A physical attack in which the user charges and slams into the target with its whole body. |
| Start | Leer | ![]() | Status | - | 100 | 30 | The user gives opposing Pokémon an intimidating leer that lowers the Defense stat. |
| Start | Supersonic | ![]() | Status | - | 55 | 20 | The user generates odd sound waves from its body that confuse the target. |
| Start | Water Gun | ![]() | Special | 40 | 100 | 25 | The target is blasted with a forceful shot of water. |
| Start | Hydro Pump | ![]() | Special | 110 | 80 | 5 | The target is blasted by a huge volume of water launched under great pressure. |
| Start | Ice Beam | ![]() | Special | 90 | 100 | 10 | The target is struck with an icy-cold beam of energy. This may also leave the target frozen. |
| Start | Aurora Beam | ![]() | Special | 65 | 100 | 20 | The target is hit with a rainbow-colored beam. This may also lower the target’s Attack stat. |
| Start | Withdraw | ![]() | Status | - | - | 40 | The user withdraws its body into its hard shell, raising its Defense stat. |
| Start | Protect | ![]() | Status | - | - | 10 | This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession. |
| Start | Spikes | ![]() | Status | - | - | 20 | The user lays a trap of spikes at the opposing team’s feet. The trap hurts Pokémon that switch into battle. |
| Start | Whirlpool | ![]() | Special | 35 | 85 | 15 | The user traps the target in a violent swirling whirlpool for four to five turns. |
| Start | Icicle Spear | ![]() | Physical | 25 | 100 | 30 | The user launches sharp icicles at the target two to five times in a row. |
| Start | Iron Defense | ![]() | Status | - | - | 15 | The user hardens its body’s surface like iron, sharply raising its Defense stat. |
| Start | Toxic Spikes | ![]() | Status | - | - | 20 | The user lays a trap of poison spikes at the feet of the opposing team. The spikes will poison opposing Pokémon that switch into battle. |
| Start | Ice Shard | ![]() | Physical | 40 | 100 | 30 | The user flash-freezes chunks of ice and hurls them at the target. This move always goes first. |
| Start | Shell Smash | ![]() | Status | - | - | 15 | The user breaks its shell, which lowers Defense and Sp. Def stats but sharply raises its Attack, Sp. Atk, and Speed stats. |
| Start | Razor Shell | ![]() | Physical | 75 | 95 | 10 | The user cuts its target with sharp shells. This may also lower the target’s Defense stat. |
| Start | Icicle Crash | ![]() | Physical | 85 | 90 | 10 | The user attacks by harshly dropping large icicles onto the target. This may also make the target flinch. |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| TM07 | Pin Missile | ![]() | Physical | 25 | 95 | 20 | Sharp spikes are shot at the target in rapid succession. They hit two to five times in a row. |
| TM08 | Hyper Beam | ![]() | Special | 150 | 90 | 5 | The target is attacked with a powerful beam. The user can’t move on the next turn. |
| TM09 | Giga Impact | ![]() | Physical | 150 | 90 | 5 | The user charges at the target using every bit of its power. The user can’t move on the next turn. |
| TM16 | Screech | ![]() | Status | - | 85 | 40 | An earsplitting screech harshly lowers the target’s Defense stat. |
| TM17 | Light Screen | ![]() | Status | - | - | 30 | A wondrous wall of light is put up to reduce damage from special attacks for five turns. |
| TM20 | Self-Destruct | ![]() | Physical | 200 | 100 | 5 | The user attacks everything around it by causing an explosion. The user faints upon using this move. |
| TM21 | Rest | ![]() | Status | - | - | 5 | The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions. |
| TM24 | Snore | ![]() | Special | 50 | 100 | 15 | This attack can be used only if the user is asleep. The harsh noise may also make the target flinch. |
| TM25 | Protect | ![]() | Status | - | - | 10 | This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession. |
| TM27 | Icy Wind | ![]() | Special | 55 | 95 | 15 | The user attacks with a gust of chilled air. This also lowers opposing Pokémon’s Speed stats. |
| TM31 | Attract | ![]() | Status | - | 100 | 15 | If it is the opposite gender of the user, the target becomes infatuated and less likely to attack. |
| TM33 | Rain Dance | ![]() | Status | - | - | 5 | The user summons a heavy rain that falls for five turns, powering up Water-type moves. It lowers the power of Fire-type moves. |
| TM35 | Hail | ![]() | Status | - | - | 10 | The user summons a hailstorm lasting five turns. It damages all Pokémon except Ice types. |
| TM36 | Whirlpool | ![]() | Special | 35 | 85 | 15 | The user traps the target in a violent swirling whirlpool for four to five turns. |
| TM39 | Facade | ![]() | Physical | 70 | 100 | 20 | This attack move doubles its power if the user is poisoned, burned, or paralyzed. |
| TM40 | Swift | ![]() | Special | 60 | - | 20 | Star-shaped rays are shot at opposing Pokémon. This attack never misses. |
| TM45 | Dive | ![]() | Physical | 80 | 100 | 10 | Diving on the first turn, the user floats up and attacks on the next turn. |
| TM46 | Weather Ball | ![]() | Special | 50 | 100 | 10 | This attack move varies in power and type depending on the weather. |
| TM51 | Icicle Spear | ![]() | Physical | 25 | 100 | 30 | The user launches sharp icicles at the target two to five times in a row. |
| TM53 | Mud Shot | ![]() | Special | 55 | 95 | 15 | The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat. |
| TM54 | Rock Blast | ![]() | Physical | 25 | 90 | 10 | The user hurls hard rocks at the target. Two to five rocks are launched in a row. |
| TM55 | Brine | ![]() | Special | 65 | 100 | 10 | If the target’s HP is half or less, this attack will hit with double the power. |
| TM57 | Payback | ![]() | Physical | 50 | 100 | 10 | The user stores power, then attacks. If the user moves after the target, this attack’s power will be doubled. |
| TM64 | Avalanche | ![]() | Physical | 60 | 100 | 10 | The power of this attack move is doubled if the user has been hurt by the target in the same turn. |
| TM76 | Round | ![]() | Special | 60 | 100 | 15 | The user attacks the target with a song. Others can join in the Round to increase the power of the attack. |
| TM83 | Razor Shell | ![]() | Physical | 75 | 95 | 10 | The user cuts its target with sharp shells. This may also lower the target’s Defense stat. |
| TM96 | Smart Strike | ![]() | Physical | 70 | - | 10 | The user stabs the target with a sharp horn. This attack never misses. |
| TR03 | Hydro Pump | ![]() | Special | 110 | 80 | 5 | The target is blasted by a huge volume of water launched under great pressure. |
| TR04 | Surf | ![]() | Special | 90 | 100 | 15 | The user attacks everything around it by swamping its surroundings with a giant wave. |
| TR05 | Ice Beam | ![]() | Special | 90 | 100 | 10 | The target is struck with an icy-cold beam of energy. This may also leave the target frozen. |
| TR06 | Blizzard | ![]() | Special | 110 | 70 | 5 | A howling blizzard is summoned to strike opposing Pokémon. This may also leave the opposing Pokémon frozen. |
| TR19 | Tri Attack | ![]() | Special | 80 | 100 | 10 | The user strikes with a simultaneous three-beam attack. This may also burn, freeze, or paralyze the target. |
| TR20 | Substitute | ![]() | Status | - | - | 10 | The user creates a substitute for itself using some of its HP. The substitute serves as the user’s decoy. |
| TR23 | Spikes | ![]() | Status | - | - | 20 | The user lays a trap of spikes at the opposing team’s feet. The trap hurts Pokémon that switch into battle. |
| TR26 | Endure | ![]() | Status | - | - | 10 | The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession. |
| TR27 | Sleep Talk | ![]() | Status | - | - | 10 | While it is asleep, the user randomly uses one of the moves it knows. |
| TR46 | Iron Defense | ![]() | Status | - | - | 15 | The user hardens its body’s surface like iron, sharply raising its Defense stat. |
| TR54 | Toxic Spikes | ![]() | Status | - | - | 20 | The user lays a trap of poison spikes at the feet of the opposing team. The spikes will poison opposing Pokémon that switch into battle. |
| TR57 | Poison Jab | ![]() | Physical | 80 | 100 | 20 | The target is stabbed with a tentacle, arm, or the like steeped in poison. This may also poison the target. |
| TR98 | Liquidation | ![]() | Physical | 85 | 100 | 10 | The user slams into the target using a full-force blast of water. This may also lower the target’s Defense stat. |
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Steel Roller | ![]() | Physical | 130 | 100 | 5 | The user attacks while destroying the terrain. This move fails when the ground hasn’t turned into a terrain. |
Shell Armor
Ability Slot 1
A hard shell protects the Pokémon from critical hits.
Protects against critical hits.
Skill Link
Ability Slot 2
Maximizes the number of times multistrike moves hit.
Extends two-to-five-hit moves and Triple Kick to their full length every time.
Overcoat
Hidden Ability
Protects the Pokémon from things like sand, hail, and powder.
Protects against damage from weather.





















Physical
Status
Special





