Shellder
#90 in the FireRed and LeafGreen Pokédex • Bivalve Pokémon
FireRed
It is encased in a shell that is harder than diamond. Inside, however, it is surprisingly tender.
LeafGreen
Its hard shell repels any kind of attack. It is vulnerable only when its shell is open.
Egg Group
Steps to Hatch
Effort Values Yielded
Gender Ratio
Capture Rate
Base Experience
| Pokémon | Requires | Evolution |
|---|---|---|
 Shellder #90 |  Use Water Stone |  Cloyster #91 |
FireRed
| Location | Method | Level | Chance | Conditions |
|---|---|---|---|---|
Cinnabar Island | Fishing with a Super Rod | 15-25 | 40% | - |
Vermilion City | Fishing with a Super Rod | 15-25 | 40% | - |
Pallet Town | Fishing with a Super Rod | 15-25 | 40% | - |
S.S. Anne | Fishing with a Super Rod | 15-25 | 40% | - |
Icefall Cave Icefall Cave (waterfall) | Fishing with a Super Rod | 15-25 | 40% | - |
One Island | Fishing with a Super Rod | 15-25 | 40% | - |
Five Island | Fishing with a Super Rod | 15-25 | 40% | - |
Normal
Shiny
Shellder
Bivalve Pokémon
HP
30
Attack
65
Defense
100
Sp. Atk
45
Sp. Def
25
Speed
40
Total
305
Type Chart
Weaknesses
Takes 2× from
Resistances
Takes 0.5× from
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| Start | Tackle |  |  Physical | 35 | 95 | 35 | A physical attack in which the user charges, full body, into the foe. |
| Start | Withdraw | |  Status | - | - | 40 | The user withdraws its body in its hard shell, raising its DEFENSE stat. |
| 8 | Icicle Spear | | Physical | 10 | 100 | 30 | Sharp icicles are fired at the foe. It strikes two to five times. |
| 15 | Supersonic | | Status | - | 55 | 20 | The user generates odd sound waves. It may confuse the foe. |
| 22 | Aurora Beam | |  Special | 65 | 100 | 20 | A rainbow-colored attack beam. It may lower the foe’s ATTACK stat. |
| 29 | Protect | | Status | - | - | 10 | Enables the user to evade all attacks. It may fail if used in succession. |
| 36 | Leer | | Status | - | 100 | 30 | The foe is given an intimidating look that lowers its DEFENSE stat. |
| 43 | Clamp | | Physical | 35 | 75 | 10 | The foe is clamped and squeezed by the user’s shell for two to five turns. |
| 50 | Ice Beam | | Special | 95 | 100 | 10 | The foe is struck with an icy beam. It may freeze the foe solid. |
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Barrier |  | Status | - | - | 30 | The user creates a sturdy wall that sharply raises its DEFENSE stat. |
| Bubble Beam | | Special | 65 | 100 | 20 | A spray of bubbles strikes the foe. It may lower the foe’s SPEED stat. |
| Icicle Spear | | Physical | 10 | 100 | 30 | Sharp icicles are fired at the foe. It strikes two to five times. |
| Rapid Spin | | Physical | 20 | 100 | 40 | An attack that frees the user from BIND, WRAP, LEECH SEED, and SPIKES. |
| Screech | | Status | - | 85 | 40 | An ear-splitting screech is emitted to sharply reduce the foe’s DEFENSE. |
| Take Down | | Physical | 90 | 85 | 20 | A reckless, full- body charge attack that also hurts the user a little. |
| Class | Description | ||||||
|---|---|---|---|---|---|---|---|
| HM03 | Surf | | Special | 95 | 100 | 15 | A big wave crashes down on the foe. Can also be used for crossing water. |
| HM08 | Dive | | Physical | 60 | 100 | 10 | The user dives underwater on the first turn and strikes next turn. |
| TM03 | Water Pulse | | Special | 60 | 100 | 20 | An attack with a pulsing blast of water. It may also confuse the foe. |
| TM06 | Toxic |  | Status | - | 85 | 10 | A move that badly poisons the foe. Its poison damage worsens every turn. |
| TM07 | Hail | | Status | - | - | 10 | A hailstorm lasting five turns damages all Pokémon except the ICE-type. |
| TM10 | Hidden Power | | Special | 1 | 100 | 15 | An attack that varies in type and intensity depending on the user. |
| TM13 | Ice Beam | | Special | 95 | 100 | 10 | The foe is struck with an icy beam. It may freeze the foe solid. |
| TM14 | Blizzard | | Special | 120 | 70 | 5 | The foe is blasted with a blizzard. It may freeze the foe solid. |
| TM17 | Protect | | Status | - | - | 10 | Enables the user to evade all attacks. It may fail if used in succession. |
| TM18 | Rain Dance | | Status | - | - | 5 | A heavy rain falls for five turns, powering up WATER- type moves. |
| TM21 | Frustration | | Physical | - | 100 | 20 | This attack move grows more powerful the less the user likes its TRAINER. |
| TM27 | Return | | Physical | - | 100 | 20 | This attack move grows more powerful the more the user likes its TRAINER. |
| TM32 | Double Team | | Status | - | - | 15 | The user creates illusory copies of itself to raise its evasiveness. |
| TM42 | Facade | | Physical | 70 | 100 | 20 | An attack that is boosted if user is burned, poisoned, or paralyzed. |
| TM43 | Secret Power | | Physical | 70 | 100 | 20 | An attack that may have an additional effect that varies with the terrain. |
| TM44 | Rest | | Status | - | - | 5 | The user sleeps for two turns to fully restore HP and heal any status problem. |
| TM45 | Attract | | Status | - | 100 | 15 | If it is the other gender, the foe is made infatuated and unlikely to attack. |
| Class | Description | |||||
|---|---|---|---|---|---|---|
| Double-Edge | | Physical | 120 | 100 | 15 | A reckless, life- risking tackle that also hurts the user a little. |
| Explosion | | Physical | 250 | 100 | 5 | The user explodes to inflict terrible damage even while fainting itself. |
| Mimic | | Status | - | - | 10 | The user copies the move last used by the foe for the rest of the battle. |
| Substitute | | Status | - | - | 10 | The user creates a decoy using one- quarter of its full HP. |
Shell Armor
Blocks critical hits.
Protects against critical hits.
Skill Link
Extends two-to-five-hit moves and Triple Kick to their full length every time.