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#091 · Kanto

Cloyster

Bivalve Pokémon

Water Ice Shadow Available
Cloyster official artwork

Official artwork for this exact form.

Basic Information

🔢
Pokédex No.#091
🌍
GenerationGen 1 — Kanto
🏷️
TypeWater / Ice
📖
CategoryBivalve Pokémon
📏
Height1.5 m
⚖️
Weight132.5 kg
👟
Buddy Distance3 km

Stats

Attack
186
Defense
256
Stamina
137
Max CP (Lv. 51)
2914
Level 40 CP
2547
Level 50 CP
2880
Weather Boost
Rain / Snow

CP figures assume 15/15/15 IVs — the same real CPM formula used by our CP Calculator.

Moves

Recommended Moveset (Great League)

Ice Shard + Icy Wind + Liquidation — PvPoke's top-rated real moveset for this Pokémon.

PvP Rankings

Great League

#742

PvPoke score: 69.1/100

Strong vs:

Guzzlord, Stunfisk, Clodsire, Altaria, Sableye (Shadow)

Weak vs:

Ninetales (Shadow), Jellicent, Tinkaton, Mimikyu, Lickilicky

Ultra League

#561

PvPoke score: 70.7/100

Strong vs:

Zygarde Complete, Guzzlord, Togekiss, Florges, Corviknight

Weak vs:

Tinkaton, Empoleon, Jellicent, Feraligatr, Lickilicky

Master League

Not currently ranked by PvPoke for Master League.

PvP scores, rankings and matchups are real, precomputed data from the open-source PvPoke battle simulator — not PokeGoHub estimates.

PvE / Raid Attacking

651 PokeGoHub Raid Score (estimate)

Calculated from this Pokémon's real base Attack stat and its best available charged move's power ÷ cooldown (DPS) — a transparent, documented formula, not an official Niantic or third-party tier list. Use it to compare relative attacking power, not as a definitive ranking.

Find the best counters for the current raid rotation →

Evolution

Evolves from Shellder.

This Pokémon does not evolve any further.

🌟 Purifying this Shadow Pokémon costs 3000 Stardust and 3 Candy.

Type Effectiveness

Weak Against

ElectricGrassFightingRock

Resistant To

WaterIce

Immune To

None

See the full interactive type chart →

Shiny

Shiny artwork shown above for reference. We don't maintain a live, region-by-region shiny-release-date log here (Niantic's shiny rollouts change too often to track reliably per species) — check current spawns, raids and event pages, or track your own catches with the Shiny Checklist.

Related

Evolution Family