Special
Balanced
40Speed · Very Slow

Stats & Training

Shellder's spread isn't flashy. Defense leads, HP trails, 1 stats clear the bar. Common in the wild and worth 1 Defense stat exp, on a slow 1.25M XP grind.

Base Stats
Avg
HP30
F
Attack65
C
Defense100
B
Sp. Atk45
D
Sp. Def45
D
Speed40
D
Total325
Details
Catch Rate
Easy190 / 255
Growth Rate
Slow1.25M XP
Height0.3 m
Weight4.0 kg
Base XP61
Abilities
Abilities were introduced in Generation III. Shown below for reference.
Shell Armor
Protects against critical hits.
Skill Link
Extends two-to-five-hit moves and triple kick to their full length every time.
OvercoatHA
Protects against damage from weather.
EV Yield
HPAtkDef+1SpASpDSpe
Defense training source
Pokedex Entries

The shell can withstand any attack. However, when it is open, the tender body is exposed.

Yellow

Shellder Weakness

Type-wise, Shellder takes extra damage from Electric and Grass. Its Water typing keeps the defensive matchups simple. Shellder's physical bulk (base 100 Def) helps cushion physical weakness hits, but special attackers are the bigger threat.

Shellder Weakness and Resistance Chart
DamageTypes
2x (Weak)Electric, Grass
0.5x (Resist)Fire, Water, Ice
Type ChartAvg
2Weak
3Resist
0Immune
Score-1
Gen I Type Chart
  • Only 15 types exist — Dark, Steel, and Fairy are absent
  • Ghost has no effect on Psychic (a known bug, fixed in Gen II)
  • Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
4xCritical
None
½xResist
¼xResist
None
0xImmune
None
How to Beat Shellder in Yellow (Best Counters)
Oddish
Oddish
GrassPoison
D
Available Moves
Moves
  • Mega DrainTM21
  • AbsorbLv. 1
Damage vs Shellder
Mega Drain 2x
62-74%
Absorb 2x
34-42%
View Oddish builds →

Yellow Evolution

Shellder starts a line toward Cloyster. Can't breed this Water type (325 stats), so keep the evolution path going. Evolving adds up to 200 stat points total. View every chain in the Evolution Chart.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Shellder
Water
Cloyster
WaterIce
HP
30
50+20
ATK
65
95+30
DEF
100
180+80
SP.ATK
45
85+40
SP.DEF
25
45+20
SPE
40
70+30
BST
305B-Tier
525B-Tier+220
ROLE
Balanced
Balanced
TYPE
Physical
Mixed
Breeding not available · Introduced in Gen 2

Yellow Shellder Best Moveset

Best Build

Gen 1 build content has limited support (no abilities, held items, or natures).

Try selecting a different game/generation filter, or check back later.

Moves

TMs define Shellder's movepool. The natural moves cover basics with Surf and Bubble Beam, but the real versatility comes from technical machines giving it Normal and Ice coverage. That's where the options open up.

Level-Up Moves

Lv 1
Tackle
D3510035Normal
Lv 1
Withdraw
D40Water
Lv 18
Supersonic
5520Normal
Lv 23
Clamp
D358510Water
Lv 30
Aurora Beam
D6510020Ice
Lv 39
Leer
10030Normal
Lv 50
Ice Beam
D9510010Ice

TM Moves

TM
TM34
Bide+1
10Normal
TM14
Blizzard
D110905Ice
TM11
Bubble Beam
D6510020Water
TM32
Double Team
15Normal
TM10
Double-Edge
C12010015Normal
TM47
Explosion
B2501005Normal
TM13
Ice Beam
D9510010Ice
TM31
Mimic
10Normal
TM20
Rage
2010020Normal
TM33
Reflect
C20Psychic
TM44
Rest
C10Psychic
TM36
Self-Destruct
B2001005Normal
TM50
Substitute
C10Normal
HM03
Surf
C9510015Water
TM39
Swift
D6020Normal
TM09
Take Down
908520Normal
TM30
Teleport-6
20Psychic
TM06
Toxic
C9010Poison
TM49
Tri Attack
8010010Normal
TM12
Water Gun
D4010025Water

Egg Moves

Shellder doesn't have any Egg moves

Tutor Moves

Shellder can't learn any Tutor moves

Yellow Shellder Locations

Easy grab on Shellder with high spawn rates across 3 locations in early-game fishing spots. The sorted list below shows the full spread so you can pick the most convenient spot.

Best Locations to Catch Shellder in Yellow

Bring Super Rod for Shellder. There are 3 fishing encounters from Lv. 10-40 with no walking alternatives. Pick the spot with the best rate and settle in.

Vermilion City - Harbor
Super Rod Lv.10 City
50%Early
Route 18
Super Rod Lv.20-40 Route
75%Mid
Route 17
Super Rod Lv.25-35 Route
50%Mid

Shellder Guide

  • Shellder evolves into Cloyster using a Water Stone. One evolution, no branching. Solid jump from 325 BST.

  • In Yellow, Shellder does the job early-game if you need a Water type on your team. Evolve it into Cloyster before the later gyms and it holds up fine through the story.

  • Shellder is catchable in Yellow. Check the Locations section above for specific routes, encounter rates, and methods. It also appears in 19 other games across the series.

  • Shellder is available in Yellow. Across the full series, it appears in 20 games total.

Game Availability

Shellder has been part of the series since Red & Blue, appearing in 20 titles across all 10 generations. As a Gen 1 original, it's one of the most consistently available Pokemon in the franchise.

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