Special
Balanced
335Low
70Moderate
CTier

Tentacool is technically a pre-evolution of Tentacruel, but it holds its own in formats where Eviolite is allowed. Only weak to Electric, Ground, and Psychic. Known as the Jellyfish Pokemon. Flexible enough to run physical or special sets.

Tentacool's spread isn't flashy. Sp. Def leads, Defense trails, 1 stats clear the bar. Common in the wild and worth 1 Sp. Def EV, on a slow 1.25M XP grind.

Base Stats
335Avg
HP40
D
Attack40
D
Defense35
F
Sp. Atk50
D
Sp. Def100
B
Speed70
C
Total335
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Tentacool yields +1 SpD
HPAtkDefSpASpD+1Spe
Details
Catch190EasySlow1.25M XP0.9m / 2'11"45.5kg / 100.3 lbs67Base XP
Pokedex Entries

It can sometimes be found all dry and shriveled up on a beach. Toss it back into the sea to revive it.

Lets Go Pikachu / Lets Go Eevee

Tentacool Weakness

Good

Tentacool is weak to Electric, Ground, and Psychic-type moves. 8 resistances give it solid defensive coverage on top of that. Tentacool's special bulk (base 100 Sp.Def) helps absorb special-type weaknesses, though physical moves exploit the lower Defense.

4xCriticali
None
¼xResisti
None
0xImmunei
None
3Weak
8Resist
0Immune
Scorei+2
SpikesGrounded — up to 25%
Toxic SpikesAbsorbs on switch
Abilities
Clear BodyPrevents stats from being lowered by other Pokémon.
Liquid OozeDamages opponents using leeching moves for as much as they would heal.
Rain DishHAHeals for 1/16 max HP after each turn during rain.

Tentacool evolves into Tentacruel. It's a two-stage chain with the method shown below. No compatible partners for breeding via one egg group. Eggs are average hatch time. Evolving adds up to 180 stat points total.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Tentacool
WaterPoison
Tentacruel
WaterPoison
HP
40
80+40
ATK
40
70+30
DEF
35
65+30
SP.ATK
50
80+30
SP.DEF
100
120+20
SPE
70
100+30
BST
335C-Tier
515B-Tier+180
ROLE
Balanced
Pivot
TYPE
Utility
Mixed
Breeding
Very Easy

Breed Tentacool easily from the Water3 egg group.

Egg Groups
Water3
Gender
50.0%50.0%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body

Best Build

Let's Go Pikachu & Eevee uses different battle mechanics.

Competitive build content is not applicable for this game. Select a main series game for builds.

TMs define Tentacool's movepool. The natural moves cover basics with Hydro Pump and Surf, but the real versatility comes from technical machines giving it Normal and Ice coverage and more. That's where the options open up.

Level-Up Moves

Lv 1
Poison Sting
1510035Poison
Lv 4
Constrict
1010035Normal
Lv 9
Supersonic
5520Normal
Lv 13
Acid
4010030Poison
Lv 18
Bubble Beam
6510020Water
Lv 22
Wrap
159020Normal
Lv 27
Surf
9010015Water
Lv 31
Barrier
20Psychic
Lv 36
Poison Jab
8010020Poison
Lv 40
Screech
8540Normal
Lv 45
Hydro Pump
110805Water

TM Moves

Src
TM51
Blizzard
110705Ice
TM32
Dazzling Gleam
8010010Fairy
TM12
Facade
7010020Normal
TM01
Headbutt
7010015Normal
TM55
Ice Beam
9010010Ice
TM53
Mega Drain
7510015Grass
TM26
Poison Jab
8010020Poison
TM07
Protect+4
10Normal
TM09
Reflect
20Psychic
TM05
Rest
10Psychic
TM29
Scald
8010015Water
TM52
Sludge Bomb
9010010Poison
TM08
Substitute
10Normal
TM47
Surf
9010015Water
TM27
Toxic
9010Poison
TM25
Waterfall
8010015Water

Egg Moves

Tentacool doesn't have any Egg moves

Tutor Moves

Tentacool can't learn any Tutor moves

Easy grab on Tentacool with high spawn rates across 26 locations in early-game water routes. The sorted list below shows the full spread so you can pick the most convenient spot.

Best Locations

Before you go hunting for Tentacool, check which of the 26 spots belong to your version. Let's Go Pikachu and Let's Go Eevee each have different surfing encounters at Lv. 7-44.

Route 24
Let's Go PikachuSurfing on waterLv.7-1245%EarlyRoute
EASY
Route 24
Let's Go EeveeSurfing on waterLv.7-1245%EarlyRoute
EASY
Route 4
Let's Go EeveeSurfing on waterLv.7-1245%EarlyRoute
EASY
Route 4
Let's Go PikachuSurfing on waterLv.7-1245%EarlyRoute
EASY
Route 11
Let's Go EeveeSurfing on waterLv.13-1830%EarlyRoute
EASY
Route 11
Let's Go PikachuSurfing on waterLv.13-1830%EarlyRoute
EASY
Route 10
Let's Go EeveeSurfing on waterLv.18-2345%MidRoute
EASY
Route 10
Let's Go PikachuSurfing on waterLv.18-2345%MidRoute
EASY
Route 20 - East
Let's Go PikachuSurfing on waterLv.37-4245%LateRoute
EASY
Route 20 - East
Let's Go EeveeSurfing on waterLv.37-4245%LateRoute
EASY
Route 20 - West
Let's Go PikachuSurfing on waterLv.39-4445%LateRoute
EASY
Route 20 - West
Let's Go EeveeSurfing on waterLv.39-4445%LateRoute
EASY
Route 12
Let's Go PikachuSurfing on waterLv.31-3630%LateRoute
EASY
Route 12
Let's Go EeveeSurfing on waterLv.31-3630%LateRoute
EASY
Route 13
Let's Go PikachuSurfing on waterLv.33-3830%LateRoute
EASY
Route 13
Let's Go EeveeSurfing on waterLv.33-3830%LateRoute
EASY
Route 18
Let's Go PikachuSurfing on waterLv.33-3830%LateRoute
EASY
Route 18
Let's Go EeveeSurfing on waterLv.33-3830%LateRoute
EASY
Route 19
Let's Go PikachuSurfing on waterLv.37-4230%LateRoute
EASY
Route 19
Let's Go EeveeSurfing on waterLv.37-4230%LateRoute
EASY
Route 21
Let's Go PikachuSurfing on waterLv.37-4230%LateRoute
EASY
Route 21
Let's Go EeveeSurfing on waterLv.37-4230%LateRoute
EASY
Seafoam Islands - Area 2
Let's Go EeveeSurfing on waterLv.39-4430%LateWater
EASY
Seafoam Islands - Area 2
Let's Go PikachuSurfing on waterLv.39-4430%LateWater
EASY
Seafoam Islands - Area 3
Let's Go PikachuSurfing on waterLv.39-4430%LateWater
EASY
Seafoam Islands - Area 3
Let's Go EeveeSurfing on waterLv.39-4430%LateWater
EASY
  • Tentacool isn't fully evolved, so it's not built for competitive play. You'll want to evolve it into Tentacruel to unlock its full potential. At 335 BST, it's a stepping stone rather than a team anchor.

  • Tentacool's biggest threats include Jolteon (Electric), Rhydon (Ground), and Alakazam (Psychic), all carrying super-effective STAB moves.

  • Tentacool evolves into Tentacruel at level 30. Tentacool is the base form of this evolutionary line.

  • Clear Body is the go-to ability for Tentacool. It prevents stats from being lowered by other Pokémon. Its hidden ability Rain Dish can work in specific setups. Liquid Ooze is the other option — pick based on what your team needs.

  • Tentacool fills the balanced role. It's a special attacker with base 50 Sp. Atk. Base 70 Speed is workable — faster than some, slower than many.

  • Tentacool appears in 21 games, including Yellow, Red & Blue, and Gold & Silver.

Tentacool has been part of the series since Red & Blue, appearing in 21 titles across all 9 generations. As a Gen 1 original, it's one of the most consistently available Pokemon in the franchise.