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089MS #089: Muk
Pokémon
#091: Cloyster 091MS
Shellder
シェルダー Shellder
#090
090Shellder
Art by Ken Sugimori from FireRed and LeafGreen
Type
Water Unknown
Species
Bivalve Pokémon
Abilities
Shell Armor or Skill Link Overcoat
Hidden Ability
Exp. at Lv. 100
1,250,000
Regional Pokédex numbers
Kanto
#090
Johto
#171
Hoenn
#260
Regional Browser numbers
Height
1'00"
Imperial
0.3 m
Metric
Weight
8.8 lbs.
Imperial
4.0 kg
Metric
Dex color
Purple
Catch rate
190 (24.8%)
Body style
Body01
Footprint
 File:F090.png 
Gender ratio
50% male, 50% female
Breeding
Water 3 group 21 cycles
(5355 minimum steps)
EV yield
HP
0
Atk
0
Def
1
Sp.Atk
0
Sp.Def
0
Speed
0
Base Exp.: 97 Battle Exp.: 971*

Shellder (Japanese: シェルダー Shellder) is a Water-type Pokémon.

It evolves into Cloyster when exposed to a Water Stone.

Biology

Physiology

Shellder have a two-piece, purplish-blue shell with four spikes, two on the top shell and two on the bottom shell. They use their shell for propulsion in swimming by rapidly closing and opening the two halves. Shellder have a large, red tongue which they use for burrowing. Their inner body is round, black, and shaped similar to a pearl. The body of a Shellder is known to be soft and tender.

After attaching to a Slowpoke's tail and evolving into Slowbro, Shellder's shell becomes a cement-grey color. It transforms into a spiny, spiraled cone with four tiers. In this form, Shellder has a circular mouth lined with sharp teeth, which securely anchor it onto the host Slowbro's tail. On the top side of the lowest segment of its shell, it has two aggressive-looking eyes peeking out and facing Slowbro's back. As can be seen when they blink, the color of the eyelids matches its shell. Slowbro's tail seems to be lodged down its throat, where the Shellder enjoys the sweet taste of Slowbro's sap secretions. Despite having Slowbro's tail in its mouth, it is capable of pronouncing its name. It also seems to possess some ability to manipulate and move Slowbro's tail on its own, possibly by somehow shifting its own weight.

After attaching to a Slowpoke's head and evolving into a Slowking, Shellder's shell becomes a light grey color. It also becomes a spiny, spiraled cone, but with three tiers. In this form, Shellder has a circular mouth lined with several sharp teeth, which securely anchor it onto the host Slowking's head, with at least two pressed into its forehead. On the bottom side of the lowest segment of its shell, it has two aggressive looking eyes peeking out and facing the opposite direction of Slowking. As can be seen when they blink, the color of the eyelids matches its shell.

Gender differences

None.

Special abilities

Shellder's shell is harder than a diamond and can withstand powerful attacks. When sand combines with the body fluids inside of Shellder, beautiful pearls are formed. As clamping on to an opponent reveal their vulnerable parts, they use the move only as a last resort. When a Shellder latches onto the tail of a fishing Slowpoke, the two Pokémon undergo a fusion evolution as a Slowbro is created and the Shellder changes in appearance. Likewise, if a Shellder bites a Slowpoke on the head due to the attraction of a King's Rock or some other reason, that Slowpoke will instead become a Slowking, the poison secreted by the Shellder reaches its head making it extremely intelligent.

Behavior

Its tongue is always hanging out, as it sits on the sea floor. Shellder swims facing backward by opening and closing its two-piece shell. When Shellder sleeps it uses its broad tongue to burrow a hole in the sand and then sleeps in it. While Shellder is sleeping, it closes its shell, but leaves its tongue hanging out. Attaching to a Slowpoke and evolving into either Slowbro or Slowking causes the Shellder to become parasitic and using the Slowbro or Slowking as a host. It feeds on Slowbro's sap secretions which taste so sweet it refuses to let go. It will also feed off Slowbro's leftovers. Shellder are apparently attracted to the King's Rock since it is this item that makes the Shellder bite Slowpoke on the head and transform it into a Slowking. Slowking's yawn provokes it to release more toxins, thus causing the Slowking host to become more intelligent.

Habitat

Sea

Sea Pokémon

Shellder lives on the sea floor. Their native range includes Kanto and [[Johto]. It can also parasitically inhabit the head of a Slowking or the tail of a Slowbro.

Diet

When Shellder's mouth is clamped on Slowbro's tail, it will feed on Slowbro's sap secretions, as well as the leftovers of food eaten by the host Slowbro. When it's on its own, Shellder is most likely a filter feeder. The Pokédex entry in Pokémon Stadium states that it hides in sand on the seafloor and catches prey with its soft tongue. It is unknown if or how it feeds while attached to Slowking's head.

Pokédex entries

This Pokémon was unavailable prior to Generation I.
Generation I
Kanto
It is encased in a shell that is harder than diamond. Inside, however, it is surprisingly tender.
Generation II
Johto
It swims facing backward by opening and closing its two-piece shell. It is surprisingly fast.
 ???
No Pokédex data is available.


Game locations

This Pokémon was unavailable prior to Generation I.
Generation I
Kanto
Common Pallet Town, Cinnabar Island, Vermilion City, Icefall Cave
Generation II
Johto
Rare Routes 41, and 47, Vermilion City, Cinnabar Island, Pallet Town, and New Bark Town (Fish with Good Rod or Super Rod)

Stats

Base stats

Stat Range
At Lv. 50 At Lv. 100
HP: 30
90 - 137 170 - 264
Attack: 65
63 - 128 121 - 251
Defense: 100
94 - 167 184 - 328
Sp.Atk: 45
45 - 106 85 - 207
Sp.Def: 25
27 - 84 49 - 163
Speed: 40
40 - 101 76 - 196
Total: 305   Other Pokémon with this total  
  • Minimum stats are calculated with 0 EVs, IVs of 0, and a hindering nature, if applicable.
  • Maximum stats are calculated with 252 EVs, IVs of 31, and a helpful nature, if applicable.
  • This Pokémon's  Special  base stat in Generation I was 45.


Pokéathlon stats

Speed
2/3 ★★
Power
3/3 ★★★
Skill
2/2 ★★
Stamina
3/4 ★★★
Jump
2/2 ★★
Total
12/14 ★★

Type effectiveness

Under normal battle conditions in Generation V, this Pokémon is:
Damaged
normally by:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel ½×
Fire ½×
Water ½×
Grass
Electric
Psychic
Ice ½×
Dragon
Dark
None
Weak to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel ½×
Fire ½×
Water ½×
Grass
Electric
Psychic
Ice ½×
Dragon
Dark
None
Immune to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel ½×
Fire ½×
Water ½×
Grass
Electric
Psychic
Ice ½×
Dragon
Dark
None
Resistant to:
Normal
Fighting
Flying
Poison
Ground
Rock
Bug
Ghost
Steel ½×
Fire ½×
Water ½×
Grass
Electric
Psychic
Ice ½×
Dragon
Dark
None

Learnset

By leveling up

Generation V
Other generations:
I - II - III - IV
 Level   Move   Type   Cat.   Pwr.   Acc.   PP 
00Start Tackle Normal Physical 05050 100100% 35
044 Withdraw Water Status 0000 —% 40
088 Supersonic Normal Status 0000 05555% 20
1313 Icicle Spear Ice Physical 02525 100100% 30
1616 Protect Normal Status 0000 —% 10
2020 Leer Normal Status 0000 100100% 30
2525 Clamp Water Physical 03535 08585% 15
2828 Ice Shard Ice Physical 04040 100100% 30
3232 Razor Shell Water Physical 07575 09595% 10
3737 Aurora Beam Ice Special 06565 100100% 20
4040 Whirlpool Water Special 03535 08585% 15
4444 Brine Water Special 06565 100100% 10
4949 Iron Defense Steel Status 0000 —% 15
5252 Ice Beam Ice Special 09595 100100% 10
5656 Shell Smash Normal Status 0000 —% 15
6161 Hydro Pump Water Special 120120 08080% 5
  • A level of "Start" indicates a move that will be known by a Shellder obtained at level 1 in Generation V
  • Bold indicates a move that gets STAB when used by Shellder
  • Italic indicates a move that gets STAB only when used by an evolution of Shellder
  • Click on the generation numbers at the top to see level-up moves from other generations

By TM/HM

Generation V
Other generations:
I - II - III - IV
 TM   Move   Type   Cat.   Pwr.   Acc.   PP 
Bag TM Poison Sprite TM06 Toxic Poison Status 90% 10
Bag TM Ice Sprite TM07 Hail Ice Status —% 10
Bag TM Normal Sprite TM10 Hidden Power Normal Special 100% 15
Bag TM Ice Sprite TM13 Ice Beam Ice Special 95 100% 10
Bag TM Ice Sprite TM14 Blizzard Ice Special 120 70% 5
Bag TM Normal Sprite TM17 Protect Normal Status —% 10
Bag TM Water Sprite TM18 Rain Dance Water Status —% 5
Bag TM Normal Sprite TM21 Frustration Normal Physical 100% 20
Bag TM Normal Sprite TM27 Return Normal Physical 100% 20
Bag TM Normal Sprite TM32 Double Team Normal Status —% 15
Bag TM Normal Sprite TM42 Facade Normal Physical 70 100% 20
Bag TM Psychic Sprite TM44 Rest Psychic Status —% 10
Bag TM Normal Sprite TM45 Attract Normal Status 100% 15
Bag TM Normal Sprite TM48 Round Normal Special 60 100% 15
Bag TM Normal Sprite TM64 Explosion Normal Physical 250 100% 5
Bag TM Dark Sprite TM66 Payback Dark Physical 50 100% 10
Bag TM Normal Sprite TM87 Swagger Normal Status 90% 15
Bag TM Normal Sprite TM90 Substitute Normal Status —% 10
Bag HM Water Sprite HM03 Surf Water Special 95 100% 15
Bag HM Water Sprite HM06 Dive Water Physical 80 100% 10
  • Bold indicates a move that gets STAB when used by Shellder
  • Italic indicates a move that gets STAB only when used by an evolution of Shellder
  • Click on the generation numbers at the top to see TM moves from other generations

By breeding

Generation V
Other generations:
II - III - IV
 Father   Move   Type   Cat.   Pwr.   Acc.   PP 
222MS Aqua Ring Water Status —% 20
091MS Avalanche Ice Physical 60 100% 10
072MS073MS Barrier Psychic Status —% 30
072MS073MS098MS099MS222MS BubbleBeam Water Special 65 100% 20
090MS091MS Icicle Spear Ice Physical 25 100% 30
098MS099MS138MS139MS140MS141MS Mud Shot Ground Special 55 95% 15
072MS073MS140MS141MS Rapid Spin* Normal Physical 20 100% 40
138MS139MS222MS Rock Blast Rock Physical 25 90% 10
072MS073MS
Screech Normal Status 85% 40
090MS091MS Take Down Normal Physical 90 85% 20
072MS073MS Water Pulse Water Special 60 100% 20
  • Moves marked with an asterisk (*) must be chain bred onto Shellder in Generation V
  • Moves marked with a double dagger (‡) can only be bred from a Pokémon who learned the move in an earlier generation.
  • Moves marked with a superscript game abbreviation can only be bred onto Shellder in that game.
  • Bold indicates a move that gets STAB when used by Shellder
  • Italic indicates a move that gets STAB only when used by an evolution of Shellder
  • Click on the generation numbers at the top to see Egg moves from other generations

By tutoring

Generation V
Other generations:
II - III - IV
 Game   Move   Type   Cat.   Pwr.   Acc.   PP 
B W B2 W2 Icy Wind Ice Special 55 95% 15
B W B2 W2 Iron Defense Steel Status —% 15
B W B2 W2 Sleep Talk Normal Status —% 10
B W B2 W2 Snore Normal Special 40 100% 15
  • A black abbreviation in a colored box indicates that Shellder can be tutored the move in that game
  • A colored abbreviation in a white box indicates that Shellder cannot be tutored the move in that game
  • Bold indicates a move that gets STAB when used by Shellder
  • Italic indicates a move that gets STAB only when used by an evolution of Shellder
  • Click on the generation numbers at the top to see Move Tutor moves from other generations

Evolution

090
Unevolved
Shellder
 Water 
Bag Water Stone Sprite
Water Stone


091
First evolution
Cloyster
 Water  Ice 

089MS #089: Muk
Pokémon
#091: Cloyster 091MS