Cloyster

#090

#091  -  Cloyster

#092

#091	Cloyster
Types Water Ice	Generation   I
Abilities Ability 1 Shell Armor Ability 2 Skill Link Hidden Ability Overcoat
Rarity Tier   Unhuntable	Catch rate   60/255 (7.84%)
Base stats HP 50 Atk 95 Def 180 Sp.Atk 85 Sp.Def 45 Spd 70 Base-stat total: 525
EV Yield HP 0 Atk 0 Def 2 Sp.Atk 0 Sp.Def 0 Spd 0 EV-yield total: 2
Base Experience   203	Gender Ratio     50%     50%
Height   1.5m	Weight   132.5kg

Cloyster is a Water- and Ice-type Pokémon.

It is the only evolutionary outlet of Shellder, having evolved from it when contactually exposed to a Water Stone.

Obtainability

Spawn Information Temporarily Unavailable

Since 17 July 2026, the public Spawn Dump Page has been temporarily disabled and will remain unavailable for an indefinite period.

Because the Pokémon Revolution Online Wiki relied on this data source, it is currently unable to display spawn locations.

For the time being, please rely on the in-game spawn information instead. Spawn information will return once a public data source becomes available again.

Moves

Level-up

Level	Move	Type	Category	Base Power	Accuracy	PP
0	Icicle Spear	Ice	Physical	25	100	30
1	Aurora Beam	Ice	Special	65	100	20
1	Hydro Pump	Water	Special	110	80	5
1	Ice Beam	Ice	Special	90	100	10
1	Ice Shard	Ice	Physical	40	100	30
1	Icicle Crash	Ice	Physical	85	90	10
1	Iron Defense	Steel	Status	—	—	15
1	Leer	Normal	Status	—	100	30
1	Protect	Normal	Status	—	—	10
1	Shell Smash	Normal	Status	—	—	15
1	Spikes	Ground	Status	—	—	20
1	Supersonic	Normal	Status	—	55	20
1	Tackle	Normal	Physical	50	100	35
1	Toxic Spikes	Poison	Status	—	—	20
1	Water Gun	Water	Special	40	100	25
1	Whirlpool	Water	Special	35	85	15
1	Withdraw	Water	Status	—	—	40
5	Razor Shell	Water	Physical	75	95	10
13	Spike Cannon	Normal	Physical	20	100	15

* Emboldened moves denote this Pokémon avails from a STAB bonus for it.

• Italicized moves are broken; see their individual pages for more information.
• All moves subsumed on this list are relearnable via the Move Relearners if lost.

TMs and HMs

TM		Move	Type	Category	Base Power	Accuracy	PP
TM93		Attract	Normal	Status	—	100	15
TM90		Avalanche	Ice	Physical	60	100	10
TM34		Bide	Normal	Physical	—	—	10
TM14		Blizzard	Ice	Special	110	70	5
TM08		Body Slam	Normal	Physical	80	100	15
TM88		Brine	Water	Special	65	100	10
TM11		Bubble Beam	Water	Special	65	100	20
TM79		Captivate	Normal	Status	—	100	20
TM181		Chilling Water	Water	Special	50	100	20
TM330		Confide	Normal	Status	—	—	20
TM77		Curse	Ghost	Status	—	—	10
TM32		Double Team	Normal	Status	—	—	15
TM10		Double-Edge	Normal	Physical	120	100	15
TM300		Drill Run	Ground	Physical	80	95	10
TM51		Endure	Normal	Status	—	—	10
TM47		Explosion	Normal	Physical	250	100	5
TM92		Facade	Normal	Physical	70	100	20
TM159		Frost Breath	Ice	Special	60	90	10
TM131		Frustration	Normal	Physical	—	100	20
TM146		Giga Impact	Normal	Physical	150	90	5
TM57		Hail	Ice	Status	—	—	10
TM200		Helping Hand	Normal	Status	—	—	20
TM60		Hidden Power	Normal	Special	60	100	15
TM316		Hydro Pump	Water	Special	110	80	5
TM15		Hyper Beam	Normal	Special	150	90	5
TM13		Ice Beam	Ice	Special	90	100	10
TM199		Ice Spinner	Ice	Physical	80	100	15
TM225		Icicle Spear	Ice	Physical	25	100	30
TM106		Icy Wind	Ice	Special	55	95	15
TM299		Iron Defense	Steel	Status	—	—	15
TM66		Light Screen	Psychic	Status	—	—	30
TM303		Liquidation	Water	Physical	85	100	16
TM31		Mimic	Normal	Status	—	—	10
TM187		Mud Shot	Ground	Special	55	95	15
TM136		Natural Gift	Normal	Physical	—	100	15
TM140		Payback	Dark	Physical	50	100	10
TM257		Pin Missile	Bug	Physical	25	95	20
TM143		Poison Jab	Poison	Physical	80	100	20
TM67		Protect	Normal	Status	—	—	10
TM20		Rage	Normal	Physical	20	100	20
TM68		Rain Dance	Water	Status	—	—	5
TM271		Razor Shell	Water	Physical	75	95	10
TM33		Reflect	Psychic	Status	—	—	20
TM44		Rest	Psychic	Status	—	—	10
TM130		Return	Normal	Physical	—	100	20
TM194		Rock Blast	Rock	Physical	25	90	10
TM270		Round	Normal	Special	60	100	15
TM170		Scary Face	Normal	Status	—	100	10
TM258		Screech	Normal	Status	—	85	40
TM133		Secret Power	Normal	Physical	70	100	20
TM36		Self-Destruct	Normal	Physical	200	100	5
TM138		Sleep Talk	Normal	Status	—	—	10
TM164		Smart Strike	Steel	Physical	70	—	10
TM121		Snore	Normal	Special	50	100	15
TM192		Snowscape	Ice	Status	—	—	10
TM293		Spikes	Ground	Status	—	—	20
TM50		Substitute	Normal	Status	—	—	16
TM124		Swagger	Normal	Status	—	90	15
TM39		Swift	Normal	Special	60	—	20
TM09		Take Down	Normal	Physical	90	85	20
TM30		Teleport	Psychic	Status	—	—	20
TM214		Tera Blast	Normal	Special	80	100	10
TM127		Torment	Dark	Status	—	100	15
TM06		Toxic	Poison	Status	—	90	10
TM294		Toxic Spikes	Poison	Status	—	—	20
TM49		Tri Attack	Normal	Special	80	100	10
TM12		Water Gun	Water	Special	40	100	25
TM128		Water Pulse	Water	Special	60	100	20
TM227		Weather Ball	Normal	Special	50	100	10
TM240		Whirlpool	Water	Special	35	85	15
HM06		Dive	Water	Physical	80	100	10
HM03		Surf	Water	Special	90	100	15
HM07		Waterfall	Water	Physical	80	100	15

* Emboldened moves denote that this Pokémon avails from a STAB bonus for it.

• Italicized moves are broken; see their individual pages for more information.
• Refer to TMs and HMs for information on each move's obtainability.

Move Tutors

Move	Type	Category	Base Power	Accuracy	PP
Dive	Water	Physical	80	100	10
Double-Edge	Normal	Physical	120	100	15
Endure	Normal	Status	—	—	10
Explosion	Normal	Physical	250	100	5
Ice Beam	Ice	Special	90	100	10
Icy Wind	Ice	Special	55	95	15
Iron Defense	Steel	Status	—	—	15
Liquidation	Water	Physical	85	100	16
Mimic	Normal	Status	—	—	10
Self-Destruct	Normal	Physical	200	100	5
Signal Beam	Bug	Special	75	100	15
Sleep Talk	Normal	Status	—	—	10
Snore	Normal	Special	50	100	15
Steel Roller	Steel	Physical	130	100	5
Substitute	Normal	Status	—	—	16
Swagger	Normal	Status	—	90	15
Swift	Normal	Special	60	—	20
Water Pulse	Water	Special	60	100	20

* Emboldened moves denote that this Pokémon avails from a STAB bonus for it.

• Italicized moves are broken; see their individual pages for more information.
• Refer to the Move Tutors article for tutorship information for all moves hereon.

Egg Moves

Move	Type	Category	Base Power	Accuracy	PP
Aqua Ring	Water	Status	—	—	20
Avalanche	Ice	Physical	60	100	10
Barrier	Psychic	Status	—	—	20
Bubble Beam	Water	Special	65	100	20
Icicle Spear	Ice	Physical	25	100	30
Life Dew	Water	Status	—	—	10
Mud Shot	Ground	Special	55	95	15
Rapid Spin	Normal	Physical	50	100	40
Rock Blast	Rock	Physical	25	90	10
Screech	Normal	Status	—	85	40
Take Down	Normal	Physical	90	85	20
Twineedle	Bug	Physical	25	100	20
Water Pulse	Water	Special	60	100	20

* Emboldened moves denote that this Pokémon avails from a STAB bonus for it.

• Italicized moves are broken; see their individual pages for more information.
• For more information on egg-move-tutors, refer to: Egg Moves.

Type Effectiveness

Under normal battle conditions, this Pokémon is:
4× Super-weak to	Shadow
2× Weak to	Electric Grass Fighting Rock
1× Neutral to	Normal Fire Poison Ground Flying Psychic Bug Ghost Dragon Dark Steel Fairy
½× Resistant to	Water Ice

Special Counterparts

Main article: Pokémon Counterparts

• 
  Shiny Cloyster
• 
  Pink Cloyster
• 
  Christmas Cloyster

External Links

• Cloyster's Bulbapedia
• Cloyster's Serebii