Dittobase

Home

Games

Pokémon GO
Pokopia
Pokémon Unite

Cards

TCG Pocket
Pokémon TCG

Main Series

Legends Z-A
Scarlet & Violet
HOME
Legends: Arceus
Brilliant Diamond and Shining Pearl
Sword and Shield
Let's Go, Pikachu! and Eevee!
Ultra Sun and Ultra Moon
Sun and Moon
Omega Ruby and Alpha Sapphire
X and Y
Black 2 and White 2
Black and White
HeartGold and SoulSilver
Platinum
Diamond and Pearl
Emerald
FireRed and LeafGreen
Ruby and Sapphire
Crystal
Gold and Silver
Yellow
Red and Blue

Tools

Sword and Shield

Game

Sword and Shield

News

Updates for this game hub

Guides

Galar mechanics and tips

Pokédex

Stats, moves, and dexes

Moves

Power, accuracy, and learners

Abilities

Effects and Pokémon lists

Items

Pockets, machines, and effects

Gym Leaders

Gyms, Champion Cup, and Leon

Egg Groups

Breeding groups and members

SwSh / Pokédex

Shellder

Shellder

Galar #150 in the Sword and Shield Pokédex • Bivalve Pokémon

Shellder

Galar #150 in the Sword and Shield Pokédex • Bivalve Pokémon

Stats

Base stat spread shown as a hex chart and supporting stat bars.

Min

Max

HP

30

170

264

Attack

65

121

251

Defense

100

184

328

Sp. Atk

45

85

207

Sp. Def

25

49

163

Speed

40

76

196

Total

305

Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.

Steelix

Cloyster

Shellder normal sprite

Normal

Shiny Shellder sprite

Shiny

Shellder

Bivalve Pokémon

Galar #150
Water

Height

0.3 m (1'00")

Weight

4 kg (8.8 lbs)

Abilities

Shell ArmorSkill LinkOvercoat(Hidden Ability)

It's Super Effective

Damage multipliers Shellder takes from each attacking type, sorted from worst weakness to best resistance.

Weak to

Electric

Grass

Resists

Fire

0.5×

Water

0.5×

Ice

0.5×

Steel

0.5×

Growth

EV yield, catch rate, and experience details for this Pokémon.
Pokédexes
Galar #150Isle of Armor #131
EV yield
1 Def
Catch rate
190
Base Exp.
61

Eggs

Egg groups, gender ratio, and hatching details for this Pokémon.
Egg Groups
Water 3
Gender
50% male
50% female
Egg cycles
20 (5,120 steps)

Lore

Version-specific Pokédex entries for this Pokémon.
Pokémon Sword box art

Sword

It swims facing backward by opening and closing its two-piece shell. It is surprisingly fast.

Pokémon Shield box art

Shield

Its hard shell repels any kind of attack. It is vulnerable only when its shell is open.

Evolution

Evolution requirements shown in a compact table or chain view.
PokémonRequiresEvolution
Shellder

Shellder

Galar #150

Water StoneUse Water Stone
Cloyster

Cloyster

Galar #151

Moves

Moves this Pokémon learns naturally by reaching specific levels.
Class
Description
StartTackleNormalPhysical4010035

A physical attack in which the user charges and slams into the target with its whole body.

StartWater GunWaterSpecial4010025

The target is blasted with a forceful shot of water.

4WithdrawWaterStatus--40

The user withdraws its body into its hard shell, raising its Defense stat.

8Ice ShardIcePhysical4010030

The user flash-freezes chunks of ice and hurls them at the target. This move always goes first.

12LeerNormalStatus-10030

The user gives opposing Pokémon an intimidating leer that lowers the Defense stat.

16WhirlpoolWaterSpecial358515

The user traps the target in a violent swirling whirlpool for four to five turns.

20SupersonicNormalStatus-5520

The user generates odd sound waves from its body that confuse the target.

24Aurora BeamIceSpecial6510020

The target is hit with a rainbow-colored beam. This may also lower the target’s Attack stat.

28ProtectNormalStatus--10

This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession.

32Razor ShellWaterPhysical759510

The user cuts its target with sharp shells. This may also lower the target’s Defense stat.

36Iron DefenseSteelStatus--15

The user hardens its body’s surface like iron, sharply raising its Defense stat.

40Ice BeamIceSpecial9010010

The target is struck with an icy-cold beam of energy. This may also leave the target frozen.

44Shell SmashNormalStatus--15

The user breaks its shell, which lowers Defense and Sp. Def stats but sharply raises its Attack, Sp. Atk, and Speed stats.

48Hydro PumpWaterSpecial110805

The target is blasted by a huge volume of water launched under great pressure.

Machines

Moves this Pokémon can learn from Technical Machines and Technical Records in Pokémon Sword and Shield.
Class
Description
TM16ScreechNormalStatus-8540

An earsplitting screech harshly lowers the target’s Defense stat.

TM20Self-DestructNormalPhysical2001005

The user attacks everything around it by causing an explosion. The user faints upon using this move.

TM21RestPsychicStatus--5

The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions.

TM24SnoreNormalSpecial5010015

This attack can be used only if the user is asleep. The harsh noise may also make the target flinch.

TM25ProtectNormalStatus--10

This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession.

TM27Icy WindIceSpecial559515

The user attacks with a gust of chilled air. This also lowers opposing Pokémon’s Speed stats.

TM31AttractNormalStatus-10015

If it is the opposite gender of the user, the target becomes infatuated and less likely to attack.

TM33Rain DanceWaterStatus--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.

TM35HailIceStatus--10

The user summons a hailstorm lasting five turns. It damages all Pokémon except Ice types.

TM36WhirlpoolWaterSpecial358515

The user traps the target in a violent swirling whirlpool for four to five turns.

TM39FacadeNormalPhysical7010020

This attack move doubles its power if the user is poisoned, burned, or paralyzed.

TM40SwiftNormalSpecial60-20

Star-shaped rays are shot at opposing Pokémon. This attack never misses.

TM45DiveWaterPhysical8010010

Diving on the first turn, the user floats up and attacks on the next turn.

TM51Icicle SpearIcePhysical2510030

The user launches sharp icicles at the target two to five times in a row.

TM53Mud ShotGroundSpecial559515

The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat.

TM54Rock BlastRockPhysical259010

The user hurls hard rocks at the target. Two to five rocks are launched in a row.

TM55BrineWaterSpecial6510010

If the target’s HP is half or less, this attack will hit with double the power.

TM57PaybackDarkPhysical5010010

The user stores power, then attacks. If the user moves after the target, this attack’s power will be doubled.

TM64AvalancheIcePhysical6010010

The power of this attack move is doubled if the user has been hurt by the target in the same turn.

TM76RoundNormalSpecial6010015

The user attacks the target with a song. Others can join in the Round to increase the power of the attack.

TM83Razor ShellWaterPhysical759510

The user cuts its target with sharp shells. This may also lower the target’s Defense stat.

TR03Hydro PumpWaterSpecial110805

The target is blasted by a huge volume of water launched under great pressure.

TR04SurfWaterSpecial9010015

The user attacks everything around it by swamping its surroundings with a giant wave.

TR05Ice BeamIceSpecial9010010

The target is struck with an icy-cold beam of energy. This may also leave the target frozen.

TR06BlizzardIceSpecial110705

A howling blizzard is summoned to strike opposing Pokémon. This may also leave the opposing Pokémon frozen.

TR19Tri AttackNormalSpecial8010010

The user strikes with a simultaneous three-beam attack. This may also burn, freeze, or paralyze the target.

TR20SubstituteNormalStatus--10

The user creates a substitute for itself using some of its HP. The substitute serves as the user’s decoy.

TR26EndureNormalStatus--10

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

TR27Sleep TalkNormalStatus--10

While it is asleep, the user randomly uses one of the moves it knows.

TR46Iron DefenseSteelStatus--15

The user hardens its body’s surface like iron, sharply raising its Defense stat.

TR98LiquidationWaterPhysical8510010

The user slams into the target using a full-force blast of water. This may also lower the target’s Defense stat.

Breeding

Moves this Pokémon can inherit through breeding or similar methods.
Class
Description
Aqua RingWaterStatus--20

The user envelops itself in a veil made of water. It regains some HP every turn.

Bubble BeamWaterSpecial6510020

A spray of bubbles is forcefully ejected at the target. This may also lower the target’s Speed stat.

Life DewWaterStatus--10

The user scatters mysterious water around and restores the HP of itself and its ally Pokémon in the battle.

Water PulseWaterSpecial6010020

The user attacks the target with a pulsing blast of water. This may also confuse the target.

Traits

Ability options available to this Pokémon in this game.

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.

#179

Steelix

#151

Cloyster

Join Discord

Join a community of over 5,000+ other trainers.

discord.gg/dittobase
Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.