Cloyster

Water Ice

Cloyster is a Water and Ice-type Pokémon with a Max CP of 2880 in Pokémon GO. Cloyster's best moveset is Frost Breath and Avalanche. It is weather boosted by Rain and Snow weather, and it was originally found in the Kanto region. Shiny Cloyster is available in Pokémon GO.

Cloyster is weak to Electric, Fighting, Grass, and Rock-type moves. It takes reduced damage from Water and Ice-type moves.

Stats

Max CP	2880 CP
Attack	186 ATK
Defense	256 DEF
Stamina	137 STA
Weather Boost	Rain Snow
Released	Yes
Shiny released	Yes
Buddy distance	3 km

Pokédex information

Pokédex Number	#91
Height	1.5 m
Weight	132.5 kg
Region	Kanto Generation 1
Can be traded	Allowed
Pokémon Home transfer	Allowed
Base Catch Rate	20%
Base Flee Rate	0%
Catch rewards	5 1200
Additional Move Cost	50 50000

Cloyster type chart

Takes increased damage

Electric	160.0%
Fighting	160.0%
Grass	160.0%
Rock	160.0%

Takes decreased damage

Ice	39.1%
Water	62.5%

Type chart shows the percentage (%) of damage taken from an incoming attack of a particular type.

Cloyster's best moves and movesets

Cloyster's best moveset is Frost Breath and Avalanche, with 12.06 DPS (damage per second) and 344.6 TDO (total damage output). These moves are boosted by Snow weather.

Best Cloyster moves

Frost Breath

Avalanche

DPS12.06

TDO344.65

Score23.7

Weather Boost

If you are unable to get Cloyster with its best moveset, we recommend to use Ice Shard/Avalanche. You will lose around 2.4% DPS and TDO, which makes these moves a viable alternative to Cloyster's strongest moveset (Frost Breath/Avalanche).

Cloyster moves comparison

The following chart shows Cloyster's DPS and TDO for every fast and charge attack combination. This chart is useful for comparing the relative strength of Cloyster's movesets. You can change the weather and the opposing Pokémon to see how it affects the rankings.

Opponent

#	Fast Attack	Charged Attack	DPS	TDO	Score 🔽
1.	Frost Breath	Avalanche	12.06	344.6	23.7
2.	Ice Shard	Avalanche	11.76	336.3	23.2
3.	Frost Breath	Razor Shell	11.60	331.6	22.8
4.	Frost Breath	Blizzard *	11.28	322.5	22.2
5.	Ice Shard	Razor Shell	11.24	321.3	22.1
6.	Frost Breath	Hydro Pump	11.16	319.0	22.0
7.	Frost Breath	Liquidation	10.89	311.2	21.4
8.	Ice Shard	Blizzard *	10.82	309.4	21.3
9.	Ice Shard	Hydro Pump	10.70	305.8	21.1
10.	Ice Shard	Liquidation	10.60	302.9	20.9
11.	Frost Breath	Aurora Beam	10.16	290.4	19.7
12.	Ice Shard	Aurora Beam	9.79	279.9	18.6

1 of 2

Fast Attacks

Ice Shard12121.2s
Type effectiveness chart
160.0%
Flying
Ground
Grass
Dragon
62.5%
Steel
Fire
Water
Ice
Gym and Raid Battles
Damage 12
Energy 12
Weather boost
Snow
Duration 1.2s
Damage window 0.6s - 0.9s
Trainer Battles
Damage 9
Energy 10

Effects
Ice Shard has no special effects.
See Ice Shard details page ↗
Frost Breath1080.9s
Type effectiveness chart
160.0%
Flying
Ground
Grass
Dragon
62.5%
Steel
Fire
Water
Ice
Gym and Raid Battles
Damage 10
Energy 8
Weather boost
Snow
Duration 0.9s
Damage window 0.5s - 0.8s
Trainer Battles
Damage 7
Energy 5

Effects
Frost Breath has no special effects.
See Frost Breath details page ↗

Damage	12
Energy	12
Weather boost	Snow
Duration	1.2s
Damage window	0.6s - 0.9s

Damage	9
Energy	10

Damage	10
Energy	8
Weather boost	Snow
Duration	0.9s
Damage window	0.5s - 0.8s

Damage	7
Energy	5

Charged Moves

Blizzard *1301003.1s
Type effectiveness chart
160.0%
Flying
Ground
Grass
Dragon
62.5%
Steel
Fire
Water
Ice
Gym and Raid Battles
Damage 130
Energy 100
Weather boost
Snow
Duration 3.1s
Damage window 1.5s - 2.9s
Trainer Battles
Damage 140
Energy 75

Effects
Blizzard has no special effects.
See Blizzard details page ↗
Hydro Pump1301003.3s
Type effectiveness chart
160.0%
Ground
Rock
Fire
62.5%
Water
Grass
Dragon
Gym and Raid Battles
Damage 130
Energy 100
Weather boost
Rain
Duration 3.3s
Damage window 0.9s - 3.0s
Trainer Battles
Damage 130
Energy 75

Effects
Hydro Pump has no special effects.
See Hydro Pump details page ↗
Icy Wind60333.3s
Type effectiveness chart
160.0%
Flying
Ground
Grass
Dragon
62.5%
Steel
Fire
Water
Ice
Gym and Raid Battles
Damage 60
Energy 33
Weather boost
Snow
Duration 3.3s
Damage window 2.0s - 2.8s
Trainer Battles
Damage 60
Energy 45

Effects
Special
Icy Wind has a 100.0% chance to:
Decrease Target's Attack by 20.0%
See Icy Wind details page ↗
Aurora Beam80503.5s
Type effectiveness chart
160.0%
Flying
Ground
Grass
Dragon
62.5%
Steel
Fire
Water
Ice
Gym and Raid Battles
Damage 80
Energy 50
Weather boost
Snow
Duration 3.5s
Damage window 3.4s - 3.5s
Trainer Battles
Damage 80
Energy 60

Effects
Aurora Beam has no special effects.
See Aurora Beam details page ↗
Avalanche90502.7s
Type effectiveness chart
160.0%
Flying
Ground
Grass
Dragon
62.5%
Steel
Fire
Water
Ice
Gym and Raid Battles
Damage 90
Energy 50
Weather boost
Snow
Duration 2.7s
Damage window 1.7s - 2.1s
Trainer Battles
Damage 90
Energy 45

Effects
Avalanche has no special effects.
See Avalanche details page ↗
Razor Shell45331.3s
Type effectiveness chart
160.0%
Ground
Rock
Fire
62.5%
Water
Grass
Dragon
Gym and Raid Battles
Damage 45
Energy 33
Weather boost
Rain
Duration 1.3s
Damage window 0.7s - 1.0s
Trainer Battles
Damage 35
Energy 35

Effects
Special
Razor Shell has a 50.0% chance to:
Decrease Target's Defense by 20.0%
See Razor Shell details page ↗
Liquidation70333.0s
Type effectiveness chart
160.0%
Ground
Rock
Fire
62.5%
Water
Grass
Dragon
Gym and Raid Battles
Damage 70
Energy 33
Weather boost
Rain
Duration 3.0s
Damage window 2.0s - 2.7s
Trainer Battles
Damage 70
Energy 45

Effects
Special
Liquidation has a 30.0% chance to:
Decrease Target's Defense by 20.0%
See Liquidation details page ↗

Damage	130
Energy	100
Weather boost	Snow
Duration	3.1s
Damage window	1.5s - 2.9s

Damage	140
Energy	75

Damage	130
Energy	100
Weather boost	Rain
Duration	3.3s
Damage window	0.9s - 3.0s

Damage	130
Energy	75

Damage	60
Energy	33
Weather boost	Snow
Duration	3.3s
Damage window	2.0s - 2.8s

Damage	60
Energy	45

Damage	80
Energy	50
Weather boost	Snow
Duration	3.5s
Damage window	3.4s - 3.5s

Damage	80
Energy	60

Damage	90
Energy	50
Weather boost	Snow
Duration	2.7s
Damage window	1.7s - 2.1s

Damage	90
Energy	45

Damage	45
Energy	33
Weather boost	Rain
Duration	1.3s
Damage window	0.7s - 1.0s

Damage	35
Energy	35

Damage	70
Energy	33
Weather boost	Rain
Duration	3.0s
Damage window	2.0s - 2.7s

Damage	70
Energy	45

Legacy Elite Fast and Charge Attacks can only be obtained during special events, or by using an Elite Fast TM or an Elite Charge TM. Legacy moves are marked with an asterisk (*). The table above provides information on different moves Cloyster has in Pokémon GO, along with their corresponding DPS (Damage per Second) and TDO (Total Damage Output).

Cloyster Special CP Values

Max CP values in Raids, Eggs, Field Research

Cloyster's has 2880 max CP (at Level 50). A Cloyster obtained from Raids can be encountered from 1383 CP to 1455 CP, or if weather boosted, in the 1729 CP to 1819 CP range. In Field and Special Research, Cloyster can be found in the 1037 CP to 1092 CP range.

Max CP	2880 CP
Max CP	Level 50, 15/15/15 IVs
Research	1037 CP - 1092 CP
Research	Level 15, 10/10/10 minimum IVs
Eggs	1383 CP - 1455 CP
Eggs	Level 20, 10/10/10 minimum IVs
Raids	1383 CP - 1455 CP
Raids	Level 20, 10/10/10 minimum IVs
RaidsWeather Boost Rain Snow	1729 CP - 1819 CP
RaidsWeather Boost Rain Snow	Weather boosted, Level 25, 10/10/10 minimum IVs

More information

Field and Special Research encounters are always Level 15. IVs range from 10 (min) to 15 (max). Field Research encounters have a 10/10/10 IV floor.
Pokémon hatched from Eggs are always Level 20. IVs range from 10 (min) to 15 (max). Egg Hatches have a 10/10/10 IV floor.
Raid Bosses caught without weather boost are always Level 20. IVs range from 10 (min) to 15 (max). Raid Catches have a 10/10/10 IV floor.
- 😈 Shadow Pokémon have 6/6/6 IV floor in raids.
Raid Bosses caught with weather boost are always Level 25. IVs range from 10 (min) to 15 (max). Weather boosted Raid Catches have a 10/10/10 IV floor.
- 😈 Shadow Pokémon have 6/6/6 IV floor in raids.
Wild encounters range from Level 1 to Level 30 Pokémon. Their IVs range from 0 (min) to 15 (max) for each stat.
Weather Boosted wild Pokémon encounters get a 5 Level boost, bringing their Level range to Level 6 to Level 35. In addition, they have a guaraneed minimum IV value of 4 for each stat, resulting in a 4/4/4 IV floor.

Cloyster Max CP Chart

Max Combat Power per Level chart

Cloyster Max CP per level chart. This table shows maximum Combat Power values from Level 1 to Level 50.

LVL	CP	LVL	CP	LVL	CP
1	36 CP	2	112 CP	3	189 CP
4	266 CP	5	343 CP	6	420 CP
7	497 CP	8	574 CP	9	651 CP
10	728 CP	11	800 CP	12	873 CP
13	946 CP	14	1019 CP	15	1092 CP
16	1164 CP	17	1237 CP	18	1310 CP
19	1383 CP	20	1455 CP	21	1528 CP
22	1601 CP	23	1674 CP	24	1747 CP
25	1819 CP	26	1892 CP	27	1965 CP
28	2038 CP	29	2111 CP	30	2184 CP
31	2220 CP	32	2256 CP	33	2293 CP
34	2329 CP	35	2366 CP	36	2402 CP
37	2438 CP	38	2475 CP	39	2511 CP
40	2547 CP	41	2580 CP	42	2612 CP
43	2645 CP	44	2678 CP	45	2711 CP
46	2745 CP	47	2778 CP	48	2812 CP
49	2846 CP	50	2880 CP

Cloyster evolution chart

Pokémon	Requires	Evolution
Shellder	50 Candy	Cloyster

Shellder evolves into Cloyster which costs 50 Candy.

Regular and Shiny Cloyster

Mega Pokémon that boost Cloyster

A list of Mega Pokémon that boost Cloyster's Water and Ice-type moves, Candy, and Candy XL from catching Cloyster.

More information

Mega and Primal Raid Bonus –Mega Pokémon boost the attack power of all other Pokémon when battling in Raid Battles by 10%. Attacks that share their type with the Mega Pokémon's type(s) receive a 30% boost. However, these bonuses do not stack if there are multiple Mega-Evolved Pokémon battling simultaneously; only the higher boost will be applied.

Mega and Primal Catch Bonus –While a Pokémon is Mega-Evolved, additional XP and Candy is granted when catching a Pokémon that shares a type with it, or for any raid boss caught. These do not stack with each other. Additionally, High and Max Level Mega-Evolved Pokémon grant an increased chance to obtain Candy XL when catching a Pokémon that shares a type with it.

Note on Primal Kyogre and Groudon

Primal Kyogre boosts Water-, Electric- and Bug-type attacks and Pokémon.
Primal Groudon boosts Fire-, Grass- and Ground-type attacks and Pokémon.

Cloyster Catch Rates

The base catch rate for Cloyster in Pokémon GO is 24.03%, calculated for catching a Level 20 with no berries. Curved Great throw has a 50.38% chance to catch, and adding a Razz Berry raises that to 65.04%.

Configure

		Normal	Nice	Great	Excellent
No Berry	-	24.03%	27.09%	33.78%	39.85%
No Berry	Curve	37.32%	41.56%	50.38%	57.86%
Razz Berry	-	33.78%	37.75%	46.11%	53.35%
Razz Berry	Curve	50.38%	55.33%	65.04%	72.65%
Silver Pinap Berry	-	39.02%	43.38%	52.38%	59.95%
Silver Pinap Berry	Curve	56.87%	61.98%	71.67%	78.89%
Golden Razz Berry	-	49.69%	54.62%	64.32%	71.94%
Golden Razz Berry	Curve	68.90%	73.89%	82.65%	88.47%

More information

Catch probability with multiple throws

In order to help Trainers understand their overall odds when catching Cloyster, we enable the functionality to showing the total chance to catch it depending on the number of available throws. We calculate this chance as if you repeated the same throw N-number of times.

To activate this functionality, change the number of Number of throws to a value greater than 1. The Number of throws option is available in the configuration options above the chart

Catch rate formula

Pokémon GO catch rate formula can be expressed as follows:

CATCH_MULTIPLIERS = ball * curve * berry * throwType * (type1Medal + type2Medal / 2)
CATCH_RATE = 1 - Math.pow(1 - baseCatchRate / (2 * cpm), CATCH_MULTIPLIERS)

There are different multipliers that come into play when calculating catch rate.

Curved throws are more effective than regular throws, stronger types of Poké Ball have a higher catch rate, and using a Razz Berry or a Golden Razz Berry also improves your chances.

Catch rate multipliers

The following table shows all the different catch rate multipliers in Pokémon GO:

Multiplier	Amount
Razz Berry	1.5
Silver Pinap Berry	1.8
Golden Razz Berry	2.5
Curveball	1.7
Nice Throw	1.15
Great Throw	1.5
Excellent Throw	1.85
PokéBall	1.0
Premier Ball	1.0
Great Ball	1.5
Ultra Ball	2.0
Bronze medal	1.1
Silver medal	1.2
Gold medal	1.3

Cloyster family

A list of Pokémon that are somehow related to Cloyster in Pokémon GO. Includes evolutions, regional, and form variations.

List of Cloyster costumes

A list of Cloyster costumes available in Pokémon GO.

Cloyster high resolution sprites

A list of high resolution Pokémon HOME sprites related to Cloyster. Sprite description is a best guess on what the sprite is related to, use your own judgment. Click to download full 512x512 resolution.

Cloyster Pokédex entries

Versions	Pokédex entry
Red, Blue	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.
Gold	Once it slams its shell shut, it is impossible to open, even by those with superi or 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 hard er than its shell.
Ruby, Sapphire	CLOYSTER is capable of swimming in the sea. It does so by swallowing water, then jetting it out toward the rear. This POKéMON shoots spikes from its shell using the same system.
Emerald	It swims in the sea by swallowing water, then jetting it out toward the rear. The CLOYSTER shoots spikes from its shell using the same system.
FireRed	Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.
LeafGreen	When attacked, it launches its horns in quick volleys. Its innards have never been seen.
Diamond, Pearl, Platinum, Black, White, Black 2, White 2	It fights by keeping its shell tightly shut for protection and by shooting spikes to repel foes.
HeartGold	Once it slams its shell shut, it is impossible to open, even by those with superior strength.
SoulSilver	CLOYSTER that live in seas with harsh tidal currents grow large, sharp spikes on their shells.
X	Cloyster that live in seas with harsh tidal currents grow large, sharp spikes on their shells.
Y, Sword	Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.
Omega Ruby	Cloyster is capable of swimming in the sea. It does so by swallowing water, then jetting it out toward the rear. This Pokémon shoots spikes from its shell using the same system.
Alpha Sapphire	Cloyster is capable of swimming in the sea. It does so by swallowing water, then jetting it out toward the rear. This Pokémon shoots spikes from its shell using the same system.
Sun	Its hard shell cannot be shattered—not even by a bomb. The contents of the shell remain unknown.
Moon	Excavation of the tombs of ancient hunting tribes has turned up many spears tipped with spikes that had fallen off this Pokémon’s shell.
Ultra Sun	If areas of Cloyster’s very hard shell get damaged, those areas swell, gradually growing into large sharp spikes.
Ultra Moon	Slowpoke tails are its favorite food. It has even been known to come up on land to look for Slowpoke from time to time.
Let's Go, Pikachu!, Let's Go, Eevee!	For protection, it uses its harder-than-diamond shell. It also shoots spikes from the shell.
Shield	Once it slams its shell shut, it is impossible to open, even by those with superior strength.