- Attack
- 186
- Defense
- 256
- HP
- 137
100% CP
- RaidsLv20
- 1,455
- min 1,383
- Weather boostLv25
- 1,819
- min 1,729
- MaxLv50
- 2,880
- Lv40 2,547
At a glance
Basics
Cloyster is a Water/Ice-type Pokémon. Its 100% IV CP is 1,455 at level 20 (raids, eggs and research), 1,819 at weather-boosted level 25 and up to 2,880 at level 50. It is weak to Electric/Grass/Fighting/Rock attacks (1.6×). It resists Water/Ice attacks. In raids, Frost Breath + Razor Shell is its strongest moveset (level 40, 100% IVs). As your buddy, it earns 1 Candy every 3 km you walk together.
- Category
- Bivalve Pokémon
- Buddy distance
- 3 km
- Second Charged Attack
- 50,000 Stardust · 50 Candy
- Max CP · Lv50 / Lv51 (Best Buddy)
- 2,880 / 2,914
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.
All values are for Pokémon GO; main-series values are not listed. The Pokédex entry is the game's own English text.
Related tips
- How to read IVs and appraisalsIVs run from 0 to 15 for each of Attack, Defense and HP, and appraisal stars are set by the sum of the three (0–45).
- What to power up first (power-up priorities for beginners)Stardust is limited, so first power up strong counters you'll use for a long time across many raids.
- Choosing IVs for PvP (low Attack wins in Great and Ultra League)In leagues with a CP cap, the lower the Attack IV, the higher you can level up within the same CP, which makes Defense and HP bigger.
Best movesetsLv40 · 15/15/15 IVs
- 1
Frost Breath
Razor ShellBest100% efficiency11.6TDO 330 - 2Frost BreathAvalanche97% efficiency11.2TDO 321
- 3Ice ShardRazor Shell97% efficiency11.2TDO 320
- 4Ice ShardAvalanche94% efficiency10.9TDO 310
- 5Frost BreathBlizzard*93% efficiency10.8TDO 307
Top 5 of 14 movesets.
Raid and Gym efficiency against an ordinary neutral 5-star boss. DPS is damage per second, TDO is total damage dealt before fainting, and efficiency compares (DPS³ × TDO)^¼ with the top moveset. Against a specific boss, moves of the types it's weak to do more. * Exclusive moves require an Elite TM.
Learnable moves
Fast Attack2
| Moves | Power | Energy | DPS | EPS |
|---|---|---|---|---|
| Frost BreathBestIce · 1s · STAB | 11 | +9 | 13.2 | 9 |
| Ice ShardIce · 1s · STAB | 10 | +10 | 12 | 10 |
Charged Attack7
| Moves | Power | Energy | DPS | DPE |
|---|---|---|---|---|
| Razor ShellBestWater · 1.5s · STAB | 55 | 33 | 44 | 2 |
| Blizzard*Ice · 3s · STAB | 130 | 100 | 52 | 1.56 |
| Hydro PumpWater · 3.5s · STAB | 135 | 100 | 46.3 | 1.62 |
| AvalancheIce · 2.5s · STAB | 85 | 50 | 40.8 | 2.04 |
| LiquidationWater · 3s · STAB | 70 | 33 | 28 | 2.55 |
| Aurora BeamIce · 3.5s · STAB | 80 | 50 | 27.4 | 1.92 |
| Icy WindIce · 3.5s · STAB | 65 | 33 | 22.3 | 2.36 |
- DPS is damage per second, EPS energy per second and DPE damage per energy. A Charged Attack costing 100 energy uses 1 bar, 50 uses 2 bars and 33 uses 3 bars.
- STAB (same-type attack bonus) applies to moves of the Pokémon's own type, which deal 1.2× damage (included in DPS, DPT and DPE).
- * Exclusive move: a move that was only available during events such as Community Day. It now requires an Elite TM.
Calculate with your Pokémon
Move the sliders or enter a CP and Cloyster's stats, move performance and power-up cost update instantly.
Enter the CP shown in the game to find the closest level for these IVs.
- Actual Attack
- 120.1
- Actual Defense
- 161.9
- Actual HP
- 90
Actual stat = (base stat + IV) × level multiplier. Level 51 is the Best Buddy boost.
Move performance at these stats
Ice ShardRazor ShellBest100% efficiencyThis is the best moveset at these stats. That's 80% of the same moveset's DPS at Lv40 with 15/15/15.
Raid calculation against a neutral 5-star boss. * Exclusive moves need an Elite TM.
Power-up cost
- Stardust
- 225,000
- Candy
- 248
- Candy XL
- 0
Lv 20 → 40: 40 power-ups, CP 2,547 after
Based on the game's power-up cost table. Shadow costs 1.2× and purified 0.9× (rounded up per power-up); Lucky Pokémon pay half the Stardust. Event bonuses are not included.
IV rankings by leagueBy stat product
| Rank | Attack | Defense | HP | Level | CP | vs. #1 |
|---|---|---|---|---|---|---|
| 1 | 0 | 13 | 13 | 22.5 | 1,500 | 100.0% |
| 2 | 0 | 15 | 12 | 22.5 | 1,500 | 99.7% |
| 3 | 0 | 12 | 13 | 22.5 | 1,497 | 99.6% |
| 4 | 2 | 15 | 15 | 22 | 1,497 | 99.6% |
| 5 | 0 | 9 | 15 | 22.5 | 1,498 | 99.5% |
| 6 | 1 | 10 | 13 | 22.5 | 1,499 | 99.4% |
| 7 | 3 | 13 | 15 | 22 | 1,500 | 99.4% |
| 8 | 0 | 14 | 12 | 22.5 | 1,497 | 99.3% |
| 9 | 0 | 11 | 14 | 22.5 | 1,499 | 99.3% |
| 10 | 0 | 11 | 13 | 22.5 | 1,494 | 99.3% |
Stat product = Attack × Defense × HP (up to level 50, excluding Best Buddy). It shows how long a Pokémon lasts under the same CP cap and doesn't include move matchups.
EvolutionFrom game data
- Stage 1
- CloysterViewing50 CandyBest movesFrost BreathRazor Shell
- Purified Pokémon need about 10% less Candy to evolve (e.g. 50 → 45 Candy).
- Best moves are the top raid moveset at level 40 with 15/15/15 IVs.
Damage takenGO multipliers
- ×1.6
Electric
Grass
Fighting
Rock - ×0.625Water
- ×0.39Ice
Show all 18 types
Normal×1
Fire×1- Water×0.625
- Electric×1.6
- Grass×1.6
- Ice×0.39
- Fighting×1.6
Poison×1
Ground×1
Flying×1
Psychic×1
Bug×1- Rock×1.6
Ghost×1
Dragon×1
Dark×1
Steel×1
Fairy×1
Offensive matchupsBased on learnable moves