The final stage in Gen 1 since Kingdra doesn't arrive until Gen 2, Seadra has decent Special but limited coverage at C-Tier in Yellow.
490HP55Attack65Defense95Speed85Sp.Def95Sp.Atk95
Horsea
Seadra
Weak to
Special
Balanced
85Speed · Above Avg

Is Seadra Good in Yellow Playthrough?

Decent speed and special output, but pure Water typing offers nothing Starmie or Lapras can't do better. Only worth considering if you've already passed on every other Water option.

StrongGoodEvenToughBadSTTEGEGGTSEEEBrockGym 1MistyGym 2SurgeGym 3ErikaGym 4KogaGym 5HorseaCatchSeadraCatchableSabrinaGym 6BlaineGym 7GiovanniGym 8LoreleiE4BrunoE4AgathaE4LanceE4BlueChamp*
Brock
Gym 1
Strong

Seadra resists most of Brock's coverage and hits back hard.

Easy KO
Geodude
Lv 10
RockGround
Rock Head
Tackle
Easy KO
Onix
Lv 12
RockGround
Rock Head
TackleScreechBindBide
Misty
Gym 2
Tough

Misty's typing presses Seadra's defenses.

Even
Staryu
Lv 18
Water
Illuminate
TackleWater Gun
Risky
Starmie
Lv 21
WaterPsychic
Illuminate
TackleWater GunHardenBubble Beam
Lt. Surge
Gym 3
Tough

Lt. Surge's team hits Seadra's weaknesses hard.

Risky
Raichu
Lv 28
Electric
Static
ThunderboltMega PunchMega KickGrowl
Erika
Gym 4
Even

Seadra trades roughly evenly with Erika's team.

Even
Tangela
Lv 30
Grass
Chlorophyll
ConstrictBindMega DrainVine Whip
Even
Weepinbell
Lv 32
GrassPoison
Chlorophyll
Razor LeafSleep PowderStun SporeAcid
Even
Gloom
Lv 32
GrassPoison
Chlorophyll
Petal DanceStun SporeSleep PowderAcid
Koga
Gym 5
Good

Seadra has the type edge here and should clean up Koga's team.

You Win
Venonat
Lv 44
BugPoison
Compound Eyes
ToxicTackleSleep PowderPsychic
You Win
Venonat
Lv 46
BugPoison
Compound Eyes
ToxicPsybeamSupersonicPsychic
You Win
Venonat
Lv 48
BugPoison
Compound Eyes
ToxicDouble EdgeSleep PowderPsychic
Even
Venomoth
Lv 50
BugPoison
Shield Dust
Leech LifeDouble TeamPsychicToxic
Sabrina
Gym 6
Even

Seadra trades roughly evenly with Sabrina's team.

Even
Abra
Lv 50
Psychic
Synchronize
Flash
Even
Kadabra
Lv 50
Psychic
Synchronize
KinesisRecoverPsychicPsywave
Risky
Alakazam
Lv 50
Psychic
Synchronize
PsywaveRecoverPsychicReflect
Blaine
Gym 7
Good

Seadra has the type edge here and should clean up Blaine's team.

Easy KO
Ninetales
Lv 48
Fire
Flash Fire
FlamethrowerTail WhipQuick AttackConfuse Ray
Easy KO
Rapidash
Lv 50
Fire
Run Away
StompGrowlFire SpinTake Down
You Win
Arcanine
Lv 54
Fire
Intimidate
FlamethrowerFire BlastReflectTake Down
Giovanni
Gym 8
Good

Seadra has the type edge here and should clean up Giovanni's team.

Easy KO
Dugtrio
Lv 50
Ground
Sand Veil
DigSand AttackFissureEarthquake
You Win
Persian
Lv 53
Normal
Limber
ScreechDouble TeamFury SwipesSlash
You Win
Nidoqueen
Lv 53
PoisonGround
Poison Point
EarthquakeTail WhipThunderDouble Kick
You Win
Nidoking
Lv 55
PoisonGround
Poison Point
EarthquakeLeerThunderDouble Kick
Easy KO
Rhydon
Lv 55
GroundRock
Lightning Rod
Rock SlideFury AttackHorn DrillEarthquake
Lorelei
Elite Four
Tough

Lorelei's typing presses Seadra's defenses.

Risky
Dewgong
Lv 54
WaterIce
Thick Fat
Bubble BeamAurora BeamRestTake Down
Risky
Cloyster
Lv 53
WaterIce
Shell Armor
SupersonicClampIce BeamSpike Cannon
Risky
Slowbro
Lv 54
WaterPsychic
Oblivious
PsychicSurfWithdrawAmnesia
Even
Jynx
Lv 56
IcePsychic
Oblivious
Double SlapIce PunchLovely KissThrash
Risky
Lapras
Lv 56
WaterIce
Water Absorb
Body SlamConfuse RayBlizzardHydro Pump
Bruno
Elite Four
Strong

Seadra resists most of Bruno's coverage and hits back hard.

Easy KO
Onix
Lv 53
RockGround
Rock Head
Rock SlideScreechSlamDig
You Win
Hitmonchan
Lv 55
Fighting
Keen Eye
Ice PunchThunder PunchFire PunchDouble Team
You Win
Hitmonlee
Lv 55
Fighting
Limber
Double KickMega KickHigh Jump KickDouble Team
Easy KO
Onix
Lv 56
RockGround
Rock Head
Rock SlideScreechSlamEarthquake
You Win
Machamp
Lv 58
Fighting
Guts
LeerKarate ChopStrengthSubmission
Agatha
Elite Four
Even

Seadra trades roughly evenly with Agatha's team.

Even
Gengar
Lv 56
GhostPoison
Cursed Body
Confuse RaySubstituteLickMega Drain
You Win
Golbat
Lv 56
PoisonFlying
Inner Focus
SupersonicToxicWing AttackLeech Life
Even
Haunter
Lv 55
GhostPoison
Levitate
Confuse RayLickHypnosisDream Eater
You Win
Arbok
Lv 58
Poison
Intimidate
WrapGlareScreechAcid
Risky
Gengar
Lv 60
GhostPoison
Cursed Body
Confuse RayPsychicHypnosisDream Eater
Lance
Elite Four
Even

Seadra trades roughly evenly with Lance's team.

Risky
Gyarados
Lv 58
WaterFlying
Intimidate
Dragon RageLeerHydro PumpHyper Beam
Even
Dragonair
Lv 56
Dragon
Shed Skin
Thunder WaveSlamThunderboltHyper Beam
You Win
Dragonair
Lv 56
Dragon
Shed Skin
Bubble BeamWrapIce BeamHyper Beam
You Win
Aerodactyl
Lv 60
RockFlying
Rock Head
Wing AttackSwiftFlyHyper Beam
Even
Dragonite
Lv 62
DragonFlying
Inner Focus
BlizzardFire BlastThunderHyper Beam
Blue
Champion
Even

Seadra trades roughly evenly with Blue's team.

Easy KO
Sandslash
Lv 61
Ground
Sand Veil
SlashPoison StingEarthquakeFury Swipes
Even
Alakazam
Lv 59
Psychic
Synchronize
PsybeamRecoverPsychicKinesis
Even
Exeggutor
Lv 61
GrassPsychic
Chlorophyll
BarrageHypnosisStompLeech Seed
Risky
Cloyster
Lv 61
WaterIce
Shell Armor
Ice BeamClampAurora BeamSpike Cannon
You Win
Ninetales
Lv 63
Fire
Flash Fire
Confuse RayTail WhipQuick AttackFire Spin
Risky
Jolteon
Lv 65
Electric
Volt Absorb
Pin MissileThunder WaveQuick AttackThunder

Catchable

Available after Badge 5
Type
Water
Tier
C

Catch Seadra on Route 12 (Super Rod fishing, Lv 25-35, common).

View Seadra locations

Catch Horsea

Available after Badge 5
Type
Water
Tier
F

Catch Horsea in Vermilion City (Super Rod fishing, Lv 5, uncommon).

View Horsea locations

Recommended Moves

How to Get Seadra in Yellow

The Super Rod pulls Seadra at a pair of spots, common enough in the 20s and 30s. Leveling a Horsea to 32 works just as well if the bites are slow.

2 locations to catch Seadra

Encountered via fishing with a Rod

Badge 5

Where To Catch Seadra in Y

To get Seadra, start by catching Horsea through fishing encounters at Lv. 5-25. The chain covers 2 catchable stages before reaching the final form.

Not landing the catch? Calculate Seadra catch rates for Yellow by ball, status, and HP.

Seadra Weakness

Electric and Grass moves hit Seadra for super-effective damage. Its Water typing keeps the defensive matchups simple. With 55 HP and balanced defenses, Seadra can afford to eat a neutral hit or two.

Seadra Weakness and Resistance Chart
DamageTypes
2x (Weak)Electric, Grass
0.5x (Resist)Fire, Water, Ice
Gen I Type Chart
  • Only 15 types exist — Dark, Steel, and Fairy are absent
  • Ghost has no effect on Psychic (a known bug, fixed in Gen II)
  • Special stat governs both offense and defense — no Sp.Atk / Sp.Def split

What is Seadra Weak Against

Avg
2Weak
3Resist
0Immune
Score-1
4xCritical
None
½xResist
¼xResist
None
0xImmune
None

What is Seadra Strong Against

3Strong
3Resisted
0Immune
Score0
½xResisted
0xImmune
None

Best Pokemon Against Seadra

Parasect
Parasect
BugGrass
C
Venusaur
Venusaur
GrassPoison
C
Victreebel
Victreebel
GrassPoison
C
Tangela
Tangela
Grass
C
Vileplume
Vileplume
GrassPoison
C

Seadra Evolutions

You get Seadra from Horsea at level 32. This Water type hits 490 total but remains in the Undiscovered group. Evolving from Horsea gave Seadra the biggest boost in Special (+70), bringing the total to 490 stats. View every chain in the Evolution Chart.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Horsea
Water
Seadra
Water
HP
30
55+25
ATK
40
65+25
DEF
70
95+25
SP.ATK
70
95+25
SP.DEF
25
45+20
SPE
60
85+25
BST
295F-Tier
440C-Tier+145
ROLE
Balanced
Balanced
TYPE
Special
Special
Breeding not available · Introduced in Gen 2

Y Seadra Best Moveset

MoveSurf and MoveBlizzard from 95 Special hit solidly in the mid-tier, and 85 Speed goes first against a fair chunk of the competition. Not the power of Starmie or the bulk of Lapras, but the Water/Ice coverage works against most neutral targets. Fills the middle ground competently.

Best Build

Experimental
Utility
Ability
Unknown
Item
None
Best Nature for Seadra
HardyNEUTRAL

Utility Moveset

  • BlizzardCoverage
  • Hydro PumpSTAB
  • SurfSTAB
  • SmokescreenUtility

Moves List

Without TMs, Seadra's movepool is bare bones. With them, you get Normal and Ice coverage on top of Hydro Pump and Surf for STAB. The natural kit handles basics, but TMs are doing the real work.

Level-Up Moves

Lv 1
Bubble
—3010030Water
Lv 1
Smokescreen
A—10020Normal
Lv 19
Smokescreen
A—10020Normal
Lv 24
Leer
——10030Normal
Lv 30
Water Gun
D6010025Water
Lv 41
Agility
A——30Psychic
Lv 52
Hydro Pump
B180805Water

TM Moves

All 17 TMs are obtainable before the Elite Four

TM
TM34D——10Normal
TM14
BlizzardPokémon Mansionbadge 6
B110905Ice
TM11C9710020Water
TM32
Double TeamSafari Zonebadge 3
———15Normal
TM10
Double-EdgeRocket Hideoutbadge 3
C12010015Normal
TM15
Hyper BeamRocket Game Cornerbadge 3
A150905Normal
TM13C9510010Ice
TM31
MimicSaffron Citybadge 5
D——10Normal
TM20
RageRoute 15badge 3
D2010020Normal
TM44
RestS.S. Annebadge 2
A——10Psychic
TM40
Skull BashSafari Zonebadge 4
C10010010Normal
TM50
SubstituteRocket Game Cornerbadge 3
C——10Normal
HM03
SurfSafari Zonebadge 4
B14210015Water
TM39
SwiftRoute 12 Gate 2Fbadge 2
D60—20Normal
TM09
Take DownSilph Co.badge 3
D908520Normal
TM06C—9010Poison
TM12
Water GunMt. Moonbadge 1
D6010025Water

Tutor Moves

Seadra can't learn any Tutor moves

Base Stats

Base Stats
Above
HP55
D
Attack65
C
Defense95
B
Sp. Atk95
B
Sp. Def95
B
Speed85
C
Total490
Details
Catch Rate
Challenging75 / 255
Growth Rate
Medium Fast1M XP
Height1.2 m
Weight25.0 kg
Base XP154
EV Yield
HPAtkDef+1SpA+1SpDSpe
Defense training target
Pokedex Entry

Touching the back fin causes numbness. It hooks its tail to coral to stay in place while sleeping.

Pokemon Yellow

Seadra Yellow Guide

  • In Yellow, Seadra has 490 BST, so weigh it against what your team already covers.

  • In Yellow, use Seadra as a balanced. Special attacks are the main output. Speed is middling, Surf is the primary attack.

Game Availability

Seadra has been part of the series since Red & Blue, appearing in 20 titles across all 9 generations. As a Gen 1 original, it's one of the most consistently available Pokemon in the franchise.

Explore

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