Cloyster
Sword

Its shell is extremely hard. It cannot be shattered, even with a bomb. The shell opens only when it is attacking.

Evolution Chain

shellder
Shellder
cloyster
Cloyster

Pokédex & Training Data

Classification Bivalve Pokémon
Height 1.5 m (4'11")
Weight 132.5 kg (292.1 lbs)
Abilities
EV Yield +2 defense
Catch Rate 60
Base Friendship 70
Growth Rate slow
Gender Ratio
♂ ♀
Egg Groups Water3

Pokédex Numbers

Kanto (R/B/Y) #091
Johto (G/S/C) #170
Johto (HG/SS) #172
Kalos (Coastal) #037
Alola (S/M) #116
Alola (US/UM) #139
Galar (Sw/Sh) #151
Paldea (S/V) #330
National #091
Isle of Armor #132

Held Items

None in this generation.

Learned Moves

Level Up Moves

Sword/Shield
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Leer
— 100% 30 Lowers the target’s Defense by one stage.
1 Supersonic
— 55% 20 Confuses the target.
1 Water Gun
40 100% 25 Inflicts regular damage with no additional effect.
1 Hydro Pump
110 80% 5 Inflicts regular damage with no additional effect.
1 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
1 Aurora Beam
65 100% 20 Has a 10% chance to lower the target’s Attack by one stage.
1 Withdraw
— — 40 Raises the user’s Defense by one stage.
1 Protect
— — 10 Prevents any moves from hitting the user this turn.
1 Spikes
— — 20 Scatters Spikes, hurting opposing Pokémon that switch in.
1 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
1 Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
1 Iron Defense
— — 15 Raises the user’s Defense by two stages.
1 Toxic Spikes
— — 20 Scatters poisoned spikes, poisoning opposing Pokémon that switch in.
1 Ice Shard
40 100% 30 Inflicts regular damage with no additional effect.
1 Shell Smash
— — 15 Raises user’s Attack, Special Attack, and Speed by two stages. Lower user’s Defense and Special Defense by one stage.
1 Razor Shell
75 95% 10 Has a 50% chance to lower the target’s Defense by one stage.
1 Icicle Crash
85 90% 10 Has a 30% chance to make the target flinch.
BD/SP
Lvl Name Class Power Acc. PP Effect
1 Tackle
40 100% 35 Inflicts regular damage with no additional effect.
1 Leer
— 100% 30 Lowers the target’s Defense by one stage.
1 Supersonic
— 55% 20 Confuses the target.
1 Water Gun
40 100% 25 Inflicts regular damage with no additional effect.
1 Hydro Pump
110 80% 5 Inflicts regular damage with no additional effect.
1 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
1 Aurora Beam
65 100% 20 Has a 10% chance to lower the target’s Attack by one stage.
1 Withdraw
— — 40 Raises the user’s Defense by one stage.
1 Protect
— — 10 Prevents any moves from hitting the user this turn.
1 Spikes
— — 20 Scatters Spikes, hurting opposing Pokémon that switch in.
1 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
1 Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
1 Iron Defense
— — 15 Raises the user’s Defense by two stages.
1 Toxic Spikes
— — 20 Scatters poisoned spikes, poisoning opposing Pokémon that switch in.
1 Ice Shard
40 100% 30 Inflicts regular damage with no additional effect.
1 Shell Smash
— — 15 Raises user’s Attack, Special Attack, and Speed by two stages. Lower user’s Defense and Special Defense by one stage.
1 Razor Shell
75 95% 10 Has a 50% chance to lower the target’s Defense by one stage.
1 Icicle Crash
85 90% 10 Has a 30% chance to make the target flinch.

TM/HM Moves

Sword/Shield
Name Class Power Acc. PP Effect
TM07 Pin Missile
25 95% 20 Hits 2-5 times in one turn.
TM08 Hyper Beam
150 90% 5 User foregoes its next turn to recharge.
TM09 Giga Impact
150 90% 5 User foregoes its next turn to recharge.
TM16 Screech
— 85% 40 Lowers the target’s Defense by two stages.
TM17 Light Screen
— — 30 Reduces damage from special attacks by 50% for five turns.
TM20 Self Destruct
200 100% 5 User faints.
TM21 Rest
— — 5 User sleeps for two turns, completely healing itself.
TM24 Snore
50 100% 15 Has a 30% chance to make the target flinch. Only works if the user is sleeping.
TM25 Protect
— — 10 Prevents any moves from hitting the user this turn.
TM27 Icy Wind
55 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
TM31 Attract
— 100% 15 Target falls in love if it has the opposite gender, and has a 50% chance to refuse attacking the user.
TM33 Rain Dance
— — 5 Changes the weather to rain for five turns.
TM35 Hail
— — 10 Changes the weather to a hailstorm for five turns.
TM36 Whirlpool
35 85% 15 Prevents the target from leaving battle and inflicts 1/16 its max HP in damage for 2-5 turns.
TM39 Facade
70 100% 20 Power doubles if user is burned, paralyzed, or poisoned.
TM40 Swift
60 — 20 Never misses.
TM45 Dive
80 100% 10 User dives underwater, dodging all attacks, and hits next turn.
TM46 Weather Ball
50 100% 10 If there be weather, this move has doubled power and the weather’s type.
TM51 Icicle Spear
25 100% 30 Hits 2-5 times in one turn.
TM53 Mud Shot
55 95% 15 Has a 100% chance to lower the target’s Speed by one stage.
TM54 Rock Blast
25 90% 10 Hits 2-5 times in one turn.
TM55 Brine
65 100% 10 Has double power against Pokémon that have less than half their max HP remaining.
TM57 Payback
50 100% 10 Power is doubled if the target has already moved this turn.
TM64 Avalanche
60 100% 10 Inflicts double damage if the user takes damage before attacking this turn.
TM76 Round
60 100% 15 Has double power if it’s used more than once per turn.
TM83 Razor Shell
75 95% 10 Has a 50% chance to lower the target’s Defense by one stage.
TM96 Smart Strike
70 — 10 Never misses.
TR03 Hydro Pump
110 80% 5 Inflicts regular damage with no additional effect.
TR04 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.
TR05 Ice Beam
90 100% 10 Has a 10% chance to freeze the target.
TR06 Blizzard
110 70% 5 Has a 10% chance to freeze the target.
TR19 Tri Attack
80 100% 10 Has a 20% chance to burn, freeze, or paralyze the target.
TR20 Substitute
— — 10 Transfers 1/4 of the user’s max HP into a doll, protecting the user from further damage or status changes until it breaks.
TR23 Spikes
— — 20 Scatters Spikes, hurting opposing Pokémon that switch in.
TR26 Endure
— — 10 Prevents the user’s HP from lowering below 1 this turn.
TR27 Sleep Talk
— — 10 Randomly uses one of the user’s other three moves. Only works if the user is sleeping.
TR46 Iron Defense
— — 15 Raises the user’s Defense by two stages.
TR54 Toxic Spikes
— — 20 Scatters poisoned spikes, poisoning opposing Pokémon that switch in.
TR57 Poison Jab
80 100% 20 Has a 30% chance to poison the target.
TR98 Liquidation
85 100% 10 Has a 20% chance to lower the target’s Defense by one stage.
BD/SP
Name Class Power Acc. PP Effect
HM03 Surf
90 100% 15 Inflicts regular damage and can hit Dive users.

Tutor Moves

Sword/Shield
Name Class Power Acc. PP Effect
Steel Roller
130 100% 5 Inflicts regular damage with no additional effect.

Base Stats

Hp 50
Attack 95
Defense 180
Sp. Atk 85
Sp. Def 45
Speed 70
Total 525

Type Defenses

(vs. Gen 6+ rules)

0.5x
2x
2x
0.25x
2x
2x