Utility
Balanced
335Low
70Moderate
DTier

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

As it floats along on the waves, it uses its toxic feelers to stab anything it touches.

Crystal

Tentacool Weakness

Good

Tentacool is weak to Electric, Ground, and Psychic-type moves. 7 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.

Gen II Type Chart
  • Dark and Steel types added — Fairy does not exist yet
  • Moves are Physical or Special based on type, not per move
  • Special stat split into Sp.Atk and Sp.Def
4xCriticali
None
¼xResisti
None
0xImmunei
None
3Weak
7Resist
0Immune
Scorei+1
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. A small partner pool 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 with 13 breeding partners from the Water3 egg group. Pass egg moves like Aurora Beam, Haze, Mirror Coat and 2 more to offspring.

Egg Groups
Water3
Gender
50.0%50.0%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body
Egg Moves
5moves
Breed With (best first)
corsolaomastarkabutopsomanytekabutotentacruelcloysterstarmiekinglerstaryutentacoolkrabby

Best Build

Gen 2 build content has limited support (no abilities).

Try selecting a different game/generation filter, or check back later.

Breeding opens up real options for Tentacool. Aurora Beam and Haze come exclusively from egg moves, and they're worth the effort. The rest of the kit covers basics through Hydro Pump and Sludge Bomb and Normal and Ice coverage and more.

Level-Up Moves

Lv 1
Poison Sting
1510035Poison
Lv 6
Supersonic
5520Normal
Lv 12
Constrict
1010035Normal
Lv 19
Acid
4010030Poison
Lv 25
Bubble Beam
6510020Water
Lv 30
Wrap
158520Normal
Lv 36
Barrier
30Psychic
Lv 43
Screech
8540Normal
Lv 49
Hydro Pump
120805Water

TM Moves

Src
TM45
Attract
10015Normal
TM14
Blizzard
120705Ice
TM03
Curse
10Ghost
HM01
Cut
509530Normal
TM32
Double Team
15Normal
TM20
Endure+4
10Normal
TM21
Frustration
10020Normal
TM19
Giga Drain
751005Grass
TM10
Hidden Power
6010015Normal
TM16
Icy Wind
559515Ice
TM17
Protect+4
10Normal
TM18
Rain Dance
5Water
TM44
Rest
10Psychic
TM27
Return
10020Normal
TM35
Sleep Talk
10Normal
TM36
Sludge Bomb
9010010Poison
TM13
Snore
4010015Normal
HM03
Surf
9510015Water
TM34
Swagger
8515Normal
TM06
Toxic
8510Poison
HM06
Whirlpool
358515Water

Egg Moves

Src
Egg
Aurora Beam
6510020Ice
Egg
Haze
30Ice
Egg
Mirror Coat-5
10020Psychic
Egg
Rapid Spin
5010040Normal
Egg
Safeguard
25Normal

Tutor Moves

Src
Tutor
Ice Beam
9510010Ice

Tentacool is available from early-game water routes onward at high spawn rates. 46 encounter spots give you plenty of options. Grab one early and it'll be ready to evolve or train by mid-game.

Best Locations

Tentacool shows up in 46 surfing and fishing spots from Lv. 10-40. Plenty of options, and the list is sorted so the highest-rate locations at each progression stage come first.

Cherrygrove City
Surfing on waterLv.15-24CommonEarlyCity
EASY
Cianwood City
Surfing on waterLv.15-24CommonEarlyCity
EASY
New Bark Town
Surfing on waterLv.15-24CommonEarlyCity
EASY
Olivine City
Surfing on waterLv.15-24CommonEarlyCity
EASY
Olivine City - Harbor
Surfing on waterLv.15-24CommonEarlyCity
EASY
Route 32
Surfing on waterLv.15-19CommonEarlyRoute
EASY
Route 34
Surfing on waterLv.15-24CommonEarlyRoute
EASY
Route 40
Surfing on waterLv.15-24CommonEarlyRoute
EASY
Union Cave - B2F
Surfing on waterLv.15-19CommonEarlyCave
EASY
Route 27
Surfing on waterLv.15-24CommonEarlyRoute
EASY
New Bark Town
Old RodLv.10UncommonEarlyCity
MODERATE
Olivine City - Harbor
Old RodLv.10UncommonEarlyCity
MODERATE
Route 32
Old RodLv.10UncommonEarlyRoute
MODERATE
Pallet Town
Old RodLv.10UncommonEarlyCity
MODERATE
Route 12
Old RodLv.10UncommonEarlyRoute
MODERATE
Route 13
Old RodLv.10UncommonEarlyRoute
MODERATE
Route 26
Old RodLv.10UncommonEarlyRoute
MODERATE
Route 27
Old RodLv.10UncommonEarlyRoute
MODERATE
Vermilion City - City
Old RodLv.10UncommonEarlyCity
MODERATE
Vermilion City - Harbor
Old RodLv.10UncommonEarlyCity
MODERATE
New Bark Town
Good RodLv.20CommonMidCity
EASY
Olivine City - Harbor
Good RodLv.20CommonMidCity
EASY
Route 32
Good RodLv.20CommonMidRoute
EASY
Route 41
Surfing on waterLv.20-24CommonMidRoute
EASY
Whirl Islands - 1F
Surfing on waterLv.20-24CommonMidWater
EASY
Pallet Town
Good RodLv.20CommonMidCity
EASY
Route 12
Good RodLv.20CommonMidRoute
EASY
Route 13
Good RodLv.20CommonMidRoute
EASY
Route 26
Good RodLv.20CommonMidRoute
EASY
Route 27
Good RodLv.20CommonMidRoute
EASY
Vermilion City - City
Good RodLv.20CommonMidCity
EASY
Vermilion City - Harbor
Good RodLv.20CommonMidCity
EASY
Route 12
Surfing on waterLv.25-29CommonMidRoute
EASY
Route 13
Surfing on waterLv.25-29CommonMidRoute
EASY
Route 26
Surfing on waterLv.25-34CommonMidRoute
EASY
Cinnabar Island - Gym
Surfing on waterLv.30-39CommonMidWater
EASY
Pallet Town
Surfing on waterLv.30-39CommonMidCity
EASY
Route 19
Surfing on waterLv.30-39CommonMidRoute
EASY
Route 20
Surfing on waterLv.30-39CommonMidRoute
EASY
Route 21
Surfing on waterLv.30-39CommonMidRoute
EASY
Vermilion City - City
Surfing on waterLv.30-39CommonMidCity
EASY
Vermilion City - Harbor
Surfing on waterLv.30-39CommonMidCity
EASY
Whirl Islands - B2F
Surfing on waterLv.20-24UncommonMidWater
MODERATE
Route 32
Super RodLv.40CommonLateRoute
EASY
Route 12
Super RodLv.40CommonLateRoute
EASY
Route 13
Super RodLv.40CommonLateRoute
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.

  • Tentacool fills the balanced role. It's leaning toward the special side (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.