Shellder
Diamond/PearlPlatinum

It swims backward by opening and closing its two shells. Its large tongue is always kept hanging out.

Heartgold

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

Soulsilver

Grains of sand trapped in its shells mix with its body fluids to form beautiful pearls.

Evolution Chain

shellder
Shellder
cloyster
Cloyster

Pokédex & Training Data

Classification Bivalve Pokémon
Height 0.3 m (0'12")
Weight 4.0 kg (8.8 lbs)
EV Yield +1 defense
Catch Rate 190
Base Friendship 70
Growth Rate slow
Gender Ratio
♂ ♀
Egg Groups Water3

Pokédex Numbers

Kanto (R/B/Y) #090
Johto (G/S/C) #169
Johto (HG/SS) #171
Kalos (Coastal) #036
Alola (S/M) #115
Alola (US/UM) #138
Galar (Sw/Sh) #150
Paldea (S/V) #329
National #090
Isle of Armor #131

Held Items

Pearl 50%

Game Locations

Cinnabar Island Area
Fuego Ironworks Area
Johto Route 47 Area
Johto Sea Route 41 Area
Kanto Route 26 Area
Kanto Route 27 Area
Kanto Sea Route 20 Area
Kanto Sea Route 21 Area
New Bark Town Area
Pallet Town Area
Sinnoh Route 205 South Towards Floaroma Town
Valley Windworks Area
Vermilion City Area
Vermilion City Ss Anne Dock

Learned Moves

Level Up Moves

Diamond/Pearl
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
4 Withdraw
— — 40 Raises the user’s Defense by one stage.
8 Supersonic
— 55% 20 Confuses the target.
13 Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
16 Protect
— — 10 Prevents any moves from hitting the user this turn.
20 Leer
— 100% 30 Lowers the target’s Defense by one stage.
25 Clamp
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
28 Ice Shard
40 100% 30 Inflicts regular damage with no additional effect.
32 Aurora Beam
65 100% 20 Has a 10% chance to lower the target’s Attack by one stage.
37 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
40 Iron Defense
— — 15 Raises the user’s Defense by two stages.
44 Brine
65 100% 10 Has double power against Pokémon that have less than half their max HP remaining.
49 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
Platinum
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
4 Withdraw
— — 40 Raises the user’s Defense by one stage.
8 Supersonic
— 55% 20 Confuses the target.
13 Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
16 Protect
— — 10 Prevents any moves from hitting the user this turn.
20 Leer
— 100% 30 Lowers the target’s Defense by one stage.
25 Clamp
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
28 Ice Shard
40 100% 30 Inflicts regular damage with no additional effect.
32 Aurora Beam
65 100% 20 Has a 10% chance to lower the target’s Attack by one stage.
37 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
40 Iron Defense
— — 15 Raises the user’s Defense by two stages.
44 Brine
65 100% 10 Has double power against Pokémon that have less than half their max HP remaining.
49 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
HeartGold/SoulSilver
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
4 Withdraw
— — 40 Raises the user’s Defense by one stage.
8 Supersonic
— 55% 20 Confuses the target.
13 Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
16 Protect
— — 10 Prevents any moves from hitting the user this turn.
20 Leer
— 100% 30 Lowers the target’s Defense by one stage.
25 Clamp
35 85% 15 Prevents the target from fleeing and inflicts damage for 2-5 turns.
28 Ice Shard
40 100% 30 Inflicts regular damage with no additional effect.
32 Aurora Beam
65 100% 20 Has a 10% chance to lower the target’s Attack by one stage.
37 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
40 Iron Defense
— — 15 Raises the user’s Defense by two stages.
44 Brine
65 100% 10 Has double power against Pokémon that have less than half their max HP remaining.
49 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.

TM/HM Moves

Diamond/PearlPlatinum
Name Class Power Acc. PP Effect
HM03 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.
TM03 Water Pulse
60 100% 20 Has a 20% chance to confuse the target.
TM06 Toxic
— 90% 10 Badly poisons the target, inflicting more damage every turn.
TM07 Hail
— — 10 Changes the weather to a hailstorm for five turns.
TM10 Hidden Power
60 100% 15 Power and type depend upon user’s IVs. Power can range from 30 to 70.
TM13 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
TM14 Blizzard
110 70% 5 Has a 10% chance to freeze the target.
TM17 Protect
— — 10 Prevents any moves from hitting the user this turn.
TM18 Rain Dance
— — 5 Changes the weather to rain for five turns.
TM21 Frustration
— 100% 20 Power increases as happiness decreases, up to a maximum of 102.
TM27 Return
— 100% 20 Power increases with happiness, up to a maximum of 102.
TM32 Double Team
— — 15 Raises the user’s evasion by one stage.
TM42 Facade
70 100% 20 Power doubles if user is burned, paralyzed, or poisoned.
TM43 Secret Power
70 100% 20 Has a 30% chance to inflict a status effect which depends upon the terrain.
TM44 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM45 Attract
— 100% 15 Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
TM55 Brine
65 100% 10 Has double power against Pokémon that have less than half their max HP remaining.
TM58 Endure
— — 10 Prevents the user’s HP from lowering below 1 this turn.
TM64 Explosion
250 100% 5 User faints.
TM66 Payback
50 100% 10 Power is doubled if the target has already moved this turn.
TM78 Captivate
— 100% 20 Lowers the target’s Special Attack by two stages if it’s the opposite gender.
TM82 Sleep Talk
— — 10 Randomly uses one of the user’s other three moves. Only works if the user is sleeping.
TM83 Natural Gift
— 100% 15 Power and type depend on the held berry.
TM87 Swagger
— 85% 15 Raises the target’s Attack by two stages and confuses the target.
TM90 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.
HeartGold/SoulSilver
Name Class Power Acc. PP Effect
HM03 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.
HM05 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
TM03 Water Pulse
60 100% 20 Has a 20% chance to confuse the target.
TM06 Toxic
— 90% 10 Badly poisons the target, inflicting more damage every turn.
TM07 Hail
— — 10 Changes the weather to a hailstorm for five turns.
TM10 Hidden Power
60 100% 15 Power and type depend upon user’s IVs. Power can range from 30 to 70.
TM13 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
TM14 Blizzard
110 70% 5 Has a 10% chance to freeze the target.
TM17 Protect
— — 10 Prevents any moves from hitting the user this turn.
TM18 Rain Dance
— — 5 Changes the weather to rain for five turns.
TM21 Frustration
— 100% 20 Power increases as happiness decreases, up to a maximum of 102.
TM27 Return
— 100% 20 Power increases with happiness, up to a maximum of 102.
TM32 Double Team
— — 15 Raises the user’s evasion by one stage.
TM42 Facade
70 100% 20 Power doubles if user is burned, paralyzed, or poisoned.
TM43 Secret Power
70 100% 20 Has a 30% chance to inflict a status effect which depends upon the terrain.
TM44 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM45 Attract
— 100% 15 Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
TM55 Brine
65 100% 10 Has double power against Pokémon that have less than half their max HP remaining.
TM58 Endure
— — 10 Prevents the user’s HP from lowering below 1 this turn.
TM64 Explosion
250 100% 5 User faints.
TM66 Payback
50 100% 10 Power is doubled if the target has already moved this turn.
TM78 Captivate
— 100% 20 Lowers the target’s Special Attack by two stages if it’s the opposite gender.
TM82 Sleep Talk
— — 10 Randomly uses one of the user’s other three moves. Only works if the user is sleeping.
TM83 Natural Gift
— 100% 15 Power and type depend on the held berry.
TM87 Swagger
— 85% 15 Raises the target’s Attack by two stages and confuses the target.
TM90 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.

Tutor Moves

PlatinumHeartGold/SoulSilver
Name Class Power Acc. PP Effect
Dive
80 100% 10 User dives underwater, dodging all attacks, and hits next turn.
Icy Wind
55 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
Iron Defense
— — 15 Raises the user’s Defense by two stages.
Snore
50 100% 15 Has a 30% chance to make the target flinch. Only works if the user is sleeping.
Swift
60 — 20 Never misses.

Egg Moves

Diamond/PearlPlatinum
Name Class Power Acc. PP Effect
Barrier
— — 20 Raises the user’s Defense by two stages.
Bubble Beam
65 100% 20 Has a 10% chance to lower the target’s Speed by one stage.
Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
Mud Shot
55 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
Rapid Spin
50 100% 40 Frees the user from binding moves, removes Leech Seed, and blows away Spikes.
Screech
— 85% 40 Lowers the target’s Defense by two stages.
Take Down
90 85% 20 User receives 1/4 the damage it inflicts in recoil.
HeartGold/SoulSilver
Name Class Power Acc. PP Effect
Barrier
— — 20 Raises the user’s Defense by two stages.
Bubble Beam
65 100% 20 Has a 10% chance to lower the target’s Speed by one stage.
Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
Mud Shot
55 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
Rapid Spin
50 100% 40 Frees the user from binding moves, removes Leech Seed, and blows away Spikes.
Rock Blast
25 90% 10 Hits 2-5 times in one turn.
Screech
— 85% 40 Lowers the target’s Defense by two stages.
Take Down
90 85% 20 User receives 1/4 the damage it inflicts in recoil.

Base Stats

Hp 30
Attack 65
Defense 100
Sp. Atk 45
Sp. Def 25
Speed 40
Total 305

Type Defenses

(vs. Gen 6+ rules)

0.5x
0.5x
2x
2x
0.5x
0.5x