#090 ShellderAll 251 Pokémon#092 Gastly
Gengar’s Pokédex · Kanto · Generation I
#091 Cloyster
WaterIce
- SpeciesBivalve Pokémon
- Japanese nameParshen
- PronunciationCLOY-STIR
- Height4′ 11″ 1.50 m
- Weight292.0 lb 131.40 kg
- Gender♂ 50% · ♀ 50%
PokédexWhere to findType matchupsMovesBreedingStats
Name meaning
Comes from CLOISTER (note spelling) and OYSTER. Cloister means to close or shut away from the world.
Evolution
- ShellderWater Stone
Cloyster
Pokédex entries
| RedBlue | When attacked, it launches its horns in quick volleys. Its innards have never been seen. |
|---|---|
| Yellow | For protection, it uses its harder-than-diamonds shell. It also shoots spikes from the shell. |
| Stadium | Its shell is so hard, it can even withstand a bomb. No one had ever seen what is inside its shell. |
| GoldStadium 2 | Once it slams it shell shut, it is impossible to open, even by those with superior strength. |
| Silver | Cloyster that live in seas with harsh tidal currents grow large, sharp spikes on their shells. |
| Crystal | Even a missile can’t break the spikes it uses to stab opponents. They’re even harder than its shell. |
Where to find Cloyster
| Game | Where to find it | Time | Rarity |
|---|---|---|---|
| Blue | Must Evolve from Shellder by using a Water Stone | NA | Evolve |
| Red | NA | Evolve | |
| Yellow | NA | Evolve | |
| Gold | Any | Evolve | |
| Silver | Any | Evolve | |
| Crystal | Any | Evolve |
How to catch
| Ground | Surf | Fishing | Forest Tree | Mountain Tree | Rock Smash | Breed | Evolve | Event | BugCatch | Game Corner | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| R/B | ✓ | ||||||||||
| Yellow | ✓ | ||||||||||
| G/S | ✓ | ||||||||||
| Crystal | ✓ |
✓ marks how you can get it in each game. Shaded boxes are methods that didn’t exist in that game.
Type matchups
Defence: damage taken from each attack type
- Normal×1
- Fire×1
- Water×0.5
- Electric×2
- Grass×2
- Ice×0.25
- Fighting×2
- Poison×1
- Ground×1
- ×1
- Psychic×1
- Bug×1
- Rock×2
- Ghost×1
- Dragon×1
- Dark×1
- Steel×1
- Gold, Silver & Crystal: 4 weaknesses and 2 resistances out of 17 types. Defence ratio 2 : 1 (200%).
- Red, Blue & Yellow: 4 weaknesses and 2 resistances out of 15 types. Defence ratio 2 : 1 (200%).
- This Pokémon has the same number of weaknesses and advantages in GSC as RBY. Therefore their defense ratios are the same.
Offence: same-type attacks against each type
- Normal1st: Normal 2nd: Normal
- Fire1st (GSC): Good 2nd (GSC): Bad 1st (RBY): Good 2nd (RBY): Normal
- Water1st: Bad 2nd: Bad
- Electric1st: Normal 2nd: Normal
- Grass1st: Bad 2nd: Good
- Ice1st: Normal 2nd: Bad
- Fighting1st: Normal 2nd: Normal
- Poison1st: Normal 2nd: Normal
- Ground1st: Good 2nd: Good
- 1st: Normal 2nd: Good
- Psychic1st: Normal 2nd: Normal
- Bug1st: Normal 2nd: Normal
- Rock1st: Good 2nd: Normal
- Ghost1st: Normal 2nd: Normal
- Dragon1st: Bad 2nd: Good
- Dark1st: Normal 2nd: Normal
- Steel1st: Normal 2nd: Bad
- Gold, Silver & Crystal: 7 advantages and 7 disadvantages out of 34 types. Offensive ratio 1:1 (100%).
- Red, Blue & Yellow: 7 advantages and 5 disadvantages out of 30 types. Offensive ratio 7:5 (140%).
Moves learned by levelling up
| R/B/Y | G/S | Crystal | Move | Type | Kind |
|---|---|---|---|---|---|
| Start | Start | Start | Tackle | Normal | Physical |
| Start | Start | Start | Withdraw | Water | Status |
| — | — | — | Supersonic | Normal | Status |
| — | — | — | Aurora Beam | Ice | Special |
| — | — | — | Protect | Normal | Status |
| — | — | — | Leer | Normal | Status |
| — | — | — | Clamp | Water | Special |
| — | — | — | Ice Beam | Ice | Special |
| — | — | 33 | Spikes | Ground | Physical |
| 50 | 41 | 41 | Spike Cannon | Normal | Physical |
“Start” means it knows the move from level 1; a dash means it doesn’t learn the move by levelling up in that game.
Move Tutor Crystal
- Ice Beam
TMs & HMs Gold, Silver & Crystal
- TM03Curse
- TM06Toxic
- TM10Hidden Power
- TM13Snore
- TM14Blizzard
- TM15Hyper Beam
- TM16Icy Wind
- TM17Protect
- TM18Rain Dance
- TM20Endure
- TM21Frustration
- TM27Return
- TM32Double Team
- TM34Swagger
- TM35Sleep Talk
- TM39Swift
- TM44Rest
- TM45Attract
- HM03Surf
- HM06Whirlpool
TMs & HMs Red, Blue & Yellow
- TM06Toxic
- TM09Take Down
- TM10Double-Edge
- TM11Bubblebeam
- TM12Water Gun
- TM13Ice Beam
- TM14Blizzard
- TM15Hyper Beam
- TM20Rage
- TM30Teleport
- TM31Mimic
- TM32Double Team
- TM33Reflect
- TM34Bide
- TM36Self Destruct
- TM39Swift
- TM44Rest
- TM47Explosion
- TM49Tri Attack
- TM50Substitute
- HM03Surf
Breeding Gold, Silver & Crystal
| Egg groups | Water 3 Pokémon group 10 |
|---|
Compatible Pokémon
Egg moves
| Move | How to pass it down |
|---|---|
| Barrier | Mate with a male Tentacool/Tentacruel. |
| Bubblebeam | Mate with a male Corsola or Tentacool/Tentacruel. |
| Rapid Spin | Breed a male from Squirtle Family and a female Kabuto/Kabutops, then breed the male offspring with a female Shellder/Cloyster. |
| Screech | Mate with a male Tentacool/Tentacruel. |
| Take Down | Teach RBY TM09 (Take Down) to a Pokémon from Kabuto, Krabby, Omanyte, Shellder, or Tentacool Family and trade it to GSC. If male, mate with a female Shellder/Cloyster. |
Stats
| Stat | Base | Range at Lv. 100 | G/S/C rank | R/B/Y rank |
|---|---|---|---|---|
| HP | 50 | 273-303 | 32/4527.43% | 29/4230.85% |
| Attack | 95 | 258-288 | 9/4980.20% | 9/4580.20% |
| Defense | 180 | 428-458 | 3/5599.98% | 1/44100.00% |
| Speed | 70 | 208-238 | 23/4755.96% | 22/4250.00% |
| Special Attack G/S/C | 85 | 238-268 | 13/4675.80% | — |
| Special Defense G/S/C | 45 | 158-188 | 34/4118.41% | — |
| Special R/B/Y | 85 | 238-268 | — | 12/2970.86% |
| Total | 525 G/S/C 480 R/B/Y |
1563-1743 1405-1555 |
9/8786.43% | 6/6595.03% |
Ranges are the lowest and highest the stat can be at level 100. Ranks compare the base stat with every other Pokémon in those games (1 is the highest), with its percentile underneath.
Restored from Gengar’s Online Pokédex v4.2, one of the first Pokédexes on the web, created by Curtis Alumbaugh (Gengar) with Ian Alumbaugh (Haunter) and kept by Pokémon Dungeon. How to read this page · Red, Blue & Yellow moves · The Library