Cloyster
WaterIce
Best attacking moveset: Ice Shard and Razor Shell, worth 10.4 damage per second against a neutral target.
Best moveset
Cloyster can learn 14 combinations. Ice Shard with Razor Shell does the most damage per second of them, at level 40 with a perfect attack stat. Same-type moves get the 1.2× bonus, and the cycle assumes the charged attack fires the moment it has the energy.
Stats and moves come straight from the game's own data files. Every number on this page is a raid and gym number, not a PvP one.
Type matchups
| Fast attack | Type | Power | Duration | Energy |
|---|---|---|---|---|
| Frost Breath | Ice | 11 | 1.0s | +9 |
| Ice Shard | Ice | 10 | 1.0s | +10 |
| Charged attack | Type | Power | Duration | Energy |
|---|---|---|---|---|
| Aurora Beam | Ice | 80 | 3.5s | -50 |
| Avalanche | Ice | 85 | 2.5s | -50 |
| Hydro Pump | Water | 135 | 3.5s | -100 |
| Icy Wind | Ice | 65 | 3.5s | -33 |
| Liquidation | Water | 70 | 3.0s | -33 |
| Razor Shell | Water | 55 | 1.5s | -33 |
| Blizzard Legacy | Ice | 130 | 3.0s | -100 |
Shiny
Yes. Shiny Cloyster has been released. Players have found it from: wild, raid, research, evolution, photobomb.
Evolution family
Numbers
| Max CP | 2,880 at level 50, 2,547 at level 40 |
|---|---|
| Raid catch | 1,455 CP at level 20, or 1,819 if weather boosted (perfect IVs) |
| Lowest possible raid catch | 1,383 CP. Raid encounters can't roll below 10/10/10 |
| Base stats | 186 attack · 256 defense · 137 stamina |
What it costs
| Second charged move | 50,000 Stardust and 50 Candy |
|---|---|
| Buddy distance | 3 km per Candy |
| Purify a Shadow one | 3,000 Stardust and 3 Candy |
| Size | 1.5 m and 132.5 kg |
Best moveset against each type
Cloyster does not have one best moveset, it has 3. Which one wins depends on what you are attacking, because a move only gets its bonus against something weak to it. Best against Ground, Flying, Grass.
| Against | Best moveset | DPS |
|---|---|---|
| Ground | Frost Breath + Razor Shell | 16.2 |
| Frost Breath + Avalanche | 16.0 | |
| Grass | Frost Breath + Avalanche | 16.0 |
| Dragon | Frost Breath + Avalanche | 16.0 |
| Rock | Ice Shard + Razor Shell | 13.9 |
| Fire | Ice Shard + Razor Shell | 12.5 |
| Normal | Ice Shard + Razor Shell | 10.4 |
| Fighting | Ice Shard + Razor Shell | 10.4 |
| Poison | Ice Shard + Razor Shell | 10.4 |
| Bug | Ice Shard + Razor Shell | 10.4 |
| Ghost | Ice Shard + Razor Shell | 10.4 |
| Electric | Ice Shard + Razor Shell | 10.4 |
| Psychic | Ice Shard + Razor Shell | 10.4 |
| Dark | Ice Shard + Razor Shell | 10.4 |
| Fairy | Ice Shard + Razor Shell | 10.4 |
| Steel | Ice Shard + Razor Shell | 9.0 |
| Ice | Ice Shard + Razor Shell | 9.0 |
| Water | Ice Shard + Razor Shell | 6.7 |
Same maths as the headline number, run once per defending type: level 40, perfect attack IV, and the target's own type taken into account. Sorted by damage, so the top of this table is what Cloyster is actually for.
Counters: what beats Cloyster
| Attacker | Type | Moveset | DPS |
|---|---|---|---|
 Regieleki | Electric | Lock On + Thunder Cage Legacy | 25.4 |
 Lucario | FightingSteel | Force Palm + Aura Sphere Legacy | 22.8 |
 Zeraora | Electric | Volt Switch + Plasma Fists | 21.9 |
 Kartana | GrassSteel | Razor Leaf + Leaf Blade | 21.8 |
 Zekrom | DragonElectric | Charge Beam + Fusion Bolt Legacy | 21.4 |
 Xurkitree | Electric | Thunder Shock + Discharge | 21.1 |
 Pheromosa | BugFighting | Low Kick + Focus Blast | 20.9 |
 Terrakion | RockFighting | Double Kick + Sacred Sword Legacy | 20.8 |
 Blaziken | FireFighting | Counter + Aura Sphere | 20.6 |
 Breloom | GrassFighting | Force Palm + Grass Knot Legacy | 19.6 |
Ranked by damage per second against Cloyster's own defense, at level 40 with a 15 attack IV, one per evolution family.