Utility
Balanced
250Low
30Very Slow
DTier

Almost nobody uses Spinarak in battle. It exists to evolve into Ariados, which is a completely different story. Get it there and you won't regret it. Only weak to Fire, Flying, Psychic, and Rock. Known as the String Spit Pokemon.

Nothing fancy in Spinarak's spread. It leans mixed with Attack out front. And you'll get 1 Attack EV per KO for it. Follows a fast 800K XP curve.

Base Stats
250Below
HP40
D
Attack60
C
Defense40
D
Sp. Atk40
D
Sp. Def40
D
Speed30
F
Total250
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Spinarak yields +1 Atk
HPAtk+1DefSpASpDSpe
Details
Catch255GuaranteedFast800,000 XP0.5m / 1'08"8.5kg / 18.7 lbs50Base XP
Pokedex Entries

It sets a trap by spinning a web with thin but strong thread. It waits motionlessly for prey to arrive.

Brilliant Diamond / Shining Pearl

Spinarak Weakness

Avg

Spinarak's Bug/Poison typing leaves it vulnerable to Fire, Flying, Psychic, and Rock moves. The Bug/Poison typing picks up 5 resistances to work with.

4xCriticali
None
½xResisti
¼xResisti
0xImmunei
None
4Weak
5Resist
0Immune
Scorei-1
Stealth Rock25% on switch
SpikesGrounded — up to 25%
Toxic SpikesAbsorbs on switch
Abilities
SwarmStrengthens bug moves to inflict 1.5× damage at 1/3 max HP or less.
InsomniaPrevents sleep.
SniperHAStrengthens critical hits to inflict 3× damage rather than 2×.

Spinarak is the base form in a two-stage line leading to Ariados. Check the evolution method below. Plenty of partners for breeding via one egg group. Eggs are quick to hatch. The evolved forms gain up to 150 total stats over Spinarak.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Spinarak
BugPoison
Ariados
BugPoison
HP
40
70+30
ATK
60
90+30
DEF
40
70+30
SP.ATK
40
60+20
SP.DEF
40
70+30
SPE
30
40+10
BST
250D-Tier
400C-Tier+150
ROLE
Balanced
Trick Room
TYPE
Physical
Physical
Breeding
Very Easy

Breed Spinarak easily with 91 breeding partners from the Bug egg group.

Egg Groups
Bug
Gender
50.0%50.0%
Hatch Time
15 cycles·3,855 steps
Quick~4 min with Flame Body
Breed With (best first)
flygondrapionmasquerainvolbeatillumiseparasectvibravaskorupiparastrapinchsurskitshuckle

Swarm isn't flashy, but it matters. Combined with Scopelens for extra utility and a spread EV build EVs, Spinarak fills the hazard lead slot reliably. Adamant nature finishes the spread.

Best Build

Hazard Setter
Ability
Swarm
Item
Scopelens
Nature
Adamant+ATK
EVs

Best Spinarak Moveset

  • Sucker Punch
  • Knock Off
  • Toxic SpikesSTAB
  • Leech LifeSTAB
All 17 games

The level-up pool is slim, so TMs matter here. Spinarak's coverage across 7 types all comes from technical machines, built on top of Sludge Wave and Bug Buzz for same-type damage. Psychic and Bug Buzz are the payoff moves.

Level-Up Moves

Lv 1
Poison Sting
1510035Poison
Lv 1
String Shot
9540Bug
Lv 5
Absorb
2010025Grass
Lv 8
Infestation
2010020Bug
Lv 12
Scary Face
10010Normal
Lv 15
Night Shade
10015Ghost
Lv 19
Shadow Sneak+1
4010030Ghost
Lv 22
Fury Swipes
188015Normal
Lv 26
Sucker Punch+1
701005Dark
Lv 29
Agility
30Psychic
Lv 33
Pin Missile
259520Bug
Lv 36
Psychic
9010010Psychic
Lv 40
Poison Jab
8010020Poison
Lv 44
Cross Poison
7010020Poison
Lv 47
Sticky Web
20Bug
Lv 51
Toxic Thread
10020Poison

TM Moves

Src
TM13
Acid Spray
4010020Poison
TM04
Agility
30Psychic
TM132
Baton Pass
40Normal
TM182
Bug Bite
6010020Bug
TM162
Bug Buzz
9010010Bug
TM55
Dig
8010010Ground
TM211
Electroweb
559515Electric
TM47
Endure+4
10Normal
TM25
Facade
7010020Normal
TM62
Foul Play
9510015Dark
TM111
Giga Drain
7510010Grass
TM29
Hex
6510010Ghost
TM181
Knock Off
6510020Dark
TM95
Leech Life
8010010Bug
TM185
Lunge
8010015Bug
TM42
Night Shade
10015Ghost
TM83
Poison Jab
8010020Poison
TM21
Pounce
5010020Bug
TM07
Protect+4
10Normal
TM120
Psychic
9010010Psychic
TM85
Rest
5Psychic
TM06
Scary Face
10010Normal
TM219
Skitter Smack
709010Bug
TM70
Sleep Talk
10Normal
TM148
Sludge Bomb
9010010Poison
TM214
Sludge Wave
9510010Poison
TM168
Solar Beam
12010010Grass
TM177
Spite
10010Ghost
TM15
Struggle Bug
5010020Bug
TM103
Substitute
10Normal
TM49
Sunny Day
5Fire
TM171
Tera Blast
8010010Normal
TM18
Thief
6010025Dark
TM175
Toxic
9010Poison
TM91
Toxic Spikes
20Poison
TM20
Trailblaze
5010020Grass
TM45
Venoshock
6510010Poison
TM105
X-Scissor
8010015Bug

Egg Moves

Spinarak doesn't have any Egg moves

Tutor Moves

Spinarak can't learn any Tutor moves
All 17 games

Spinarak doesn't appear in Scarlet & Violet. Transfer it from Gold, Crystal, or HeartGold to add it to your collection. Check the source games below for encounter details.

Spinarak is not available as a wild encounter in this game.

Also found in:

  • At 250 BST, Spinarak is firmly in pre-evolution territory. Evolve it into Ariados before bringing it to any serious fight.

  • Watch for Arcanine (Fire), Dodrio (Flying), and Starmie (Psychic) when using Spinarak. They all hit it super-effectively with STAB. Rock-type attackers are also a problem. At base 30 Speed, Spinarak won't outrun any of these threats so switching to a resist is usually the safer play.

  • Spinarak evolves into Ariados at level 22. Spinarak is the base form of this evolutionary line.

  • Swarm strengthens bug moves to inflict 1.5× damage at 1/3 max HP or less — that's the one you want on Spinarak. Sniper is the hidden ability. Niche, but it has its uses. Insomnia works too if your team needs something different.

  • Spinarak is leaning toward the physical side (base 60 Attack). Fragile — can't afford to take many hits, too. But the speed tells the real story — base 30 Speed is low. Priority moves or Trick Room are the way to go.

  • Spinarak appears in 17 games, including Gold & Silver, Crystal, and Ruby & Sapphire.

Debuting in Gold & Silver, Spinarak appears in 17 games across 8 generations. A reliable presence in most mainline games, typically found through catching or hatching as a base form.