Ariados is a Bug/Poison-type Pokémon introduced in Generation II and a final stage of its evolution line, with a base stat total of 400.

Ariados

Ariados

Abilities

Swarm

Ups BUG moves in a pinch.

Insomnia

Prevents sleep.

Sniper

Powers up moves if they become critical hits.

Hidden Ability

Base Stats

Total: 400
EV Yield: 2 Attack
HP: 70
Attack: 90
Defense: 70
Sp. Atk: 60
Sp. Def: 70
Speed: 40

Ariados's Weaknesses and Resistances

Evolution Chain

Spinarak evolves into Ariados at level 22.

Ariados Playthrough, Competitive, and Nuzlocke Usage

Using Ariados in a Playthrough

The Spinarak line is an early Bug/Poison family whose value comes more from useful resistances, status, and utility than from speed or overwhelming damage. Spinarak evolves into Ariados at level 22, giving the player a fully evolved Pokemon fairly early, and Ariados's base 90 Attack is respectable enough to make physical Bug- and Poison-type moves useful when good options are available. Its biggest limitation is base 40 Speed, which forces Ariados to take hits before acting against many opponents; its merely average bulk means that this can become increasingly dangerous later in a playthrough. Later generations improve the line substantially with stronger attacks and utility such as Megahorn, Poison Jab, Sucker Punch, Leech Life, Toxic Spikes, Sticky Web, and the signature Toxic Thread, while Insomnia can provide a useful immunity to sleep. Ariados is therefore most effective as a slow physical attacker or support Pokemon used selectively against Grass-, Fighting-, Bug-, Poison-, and, from Generation VI onward, Fairy-type opponents rather than as a general-purpose sweeper.

Ariados in Competitive Pokémon

Ariados has spent most of competitive Pokemon in the lowest tiers, but it has accumulated several unusual utility niches over the generations. In Generation II, Spider Web combined with Baton Pass gave it a rare trapping strategy: Ariados could prevent an opponent from switching and then pass the trapping effect to a teammate better equipped to exploit the matchup. Later generations shifted its identity toward entry-hazard support, particularly because it can learn both Sticky Web and Toxic Spikes, while Toxic Thread can simultaneously poison an opponent and reduce its Speed. The problem has always been execution—base 40 Speed leaves Ariados extremely vulnerable to faster Taunt users and offensive pressure, while its ordinary defenses provide little opportunity to recover after setting hazards. As a result, Ariados has genuine utility on paper but is usually outclassed by faster or bulkier hazard setters that can perform the same jobs more consistently.

Ariados in Nuzlockes

The Spinarak line can be a useful but highly matchup-dependent Nuzlocke encounter, particularly in games where Spinarak is available early enough for Ariados's level-22 evolution to matter. Bug/Poison typing provides excellent resistances to Grass and Fighting and useful resistances to several other types, while Insomnia can create safe switches into predictable sleep moves when that ability is available. Ariados's poor Speed is the main source of risk: it frequently has to absorb an attack before responding, and weaknesses to Fire, Flying, Psychic, and Rock make unexpected coverage potentially fatal. Status, priority such as Sucker Punch in applicable generations, and later hazard support can still let it contribute without winning every battle through direct damage. It is safest when brought into opponents whose moves are already known rather than being used as a blind switch-in against neutral attackers.

Learnsets

68 moves · Scarlet Violet

Level Up

- Swords Dance normal type --- --- status move
1 Poison Sting poison type 15 100 physical move
1 Absorb grass type 20 100 special move
1 String Shot bug type --- 95 status move
1 Focus Energy normal type --- --- status move
1 Bug Bite bug type 60 100 physical move
1 Fell Stinger bug type 50 100 physical move
8 Infestation bug type 20 100 special move
12 Scary Face normal type --- 100 status move
15 Night Shade ghost type --- 100 special move
19 Shadow Sneak ghost type 40 100 physical move
23 Fury Swipes normal type 18 80 physical move
28 Sucker Punch dark type 70 100 physical move
31 Agility psychic type --- --- status move
35 Pin Missile bug type 25 95 physical move
41 Psychic psychic type 90 100 special move
46 Poison Jab poison type 80 100 physical move
50 Cross Poison poison type 70 100 physical move
54 Sticky Web bug type --- --- status move
59 Toxic Thread poison type --- 100 status move

Machine

- Swords Dance normal type --- --- status move
- Hyper Beam normal type 150 90 special move
- Solar Beam grass type 120 100 special move
- Dig ground type 80 100 physical move
- Toxic poison type --- 90 status move
- Psychic psychic type 90 100 special move
- Agility psychic type --- --- status move
- Night Shade ghost type --- 100 special move
- Leech Life bug type 80 100 physical move
- Rest psychic type --- --- status move
- Substitute normal type --- --- status move
- Thief dark type 60 100 physical move
- Spite ghost type --- 100 status move
- Protect normal type --- --- status move
- Scary Face normal type --- 100 status move
- Sludge Bomb poison type 90 100 special move
- Giga Drain grass type 75 100 special move
- Endure normal type --- --- status move
- Sleep Talk normal type --- --- status move
- Baton Pass normal type --- --- status move
- Sunny Day fire type --- --- status move
- Facade normal type 70 100 physical move
- Knock Off dark type 65 100 physical move
- Toxic Spikes poison type --- --- status move
- Poison Jab poison type 80 100 physical move
- X-Scissor bug type 80 100 physical move
- Bug Buzz bug type 90 100 special move
- Giga Impact normal type 150 90 physical move
- Bug Bite bug type 60 100 physical move
- Venoshock poison type 65 100 special move
- Sludge Wave poison type 95 100 special move
- Acid Spray poison type 40 100 special move
- Foul Play dark type 95 100 physical move
- Hex ghost type 65 100 special move
- Struggle Bug bug type 50 100 special move
- Electroweb electric type 55 95 special move
- Throat Chop dark type 80 100 physical move
- Lunge bug type 80 100 physical move
- Smart Strike steel type 70 --- physical move
- Skitter Smack bug type 70 90 physical move
- Tera Blast normal type 80 100 special move
- Pounce bug type 50 100 physical move
- Trailblaze grass type 50 100 physical move

Egg

- Disable normal type --- 100 status move
- Megahorn bug type 120 85 physical move
- Night Slash dark type 70 100 physical move
- Rage Powder bug type --- --- status move
- Lunge bug type 80 100 physical move

Pokédex Entries

12 entries
Gold / Leafgreen

It spins string not only from its rear but also from its mouth. It is hard to tell which end is which.

Silver / Firered / Soulsilver

A single strand of a special string is endlessly spun out of its rear. The string leads back to its nest.

Crystal

Rather than making a nest in one specific spot, it wanders in search of food after darkness falls.

Ruby / Sapphire

ARIADOS’s feet are tipped with tiny hooked claws that enable it to scuttle on ceilings and vertical walls. This POKéMON constricts the foe with thin and strong silk webbing.

Emerald

Its feet are tipped with tiny hooked claws that enable it to scuttle on ceilings and vertical walls. It constricts its foe with thin and strong silk webbing.

Diamond / Pearl / Platinum / Black / White / Black 2 / White 2 / Y

It attaches silk to its prey and sets it free. Later, it tracks the silk to the prey and its friends.

Heartgold / X

It spins string not only from its rear but also from its mouth. It’s hard to tell which end is which.

Omega Ruby / Alpha Sapphire

Ariados’s feet are tipped with tiny hooked claws that enable it to scuttle on ceilings and vertical walls. This Pokémon constricts the foe with thin and strong silk webbing.

Sun

There are some areas where people use the string Ariados spins for their own weaving. The resulting cloth is popular for its strength.

Moon

It spins thread from both its rear and its mouth. Then it wraps its prey up in thread and sips their bodily fluids at its leisure.

Ultra Sun

Every night, it wanders around in search of prey, whose movements it restrains by spewing threads before it bites into them with its fangs.

Ultra Moon

It spews threads from its mouth to catch its prey. When night falls, it leaves its web to go hunt aggressively.

Where To Find Ariados

13 locations
Malie Garden · AlolaWalking · version details vary

Malie Garden Area

Moon max 20%
Walking · Lv. 24–27 · 20%
Sun max 20%
Walking · Lv. 24–27 · 20%
Ultra Moon max 20%
Walking · Lv. 25–28 · 20%
Ultra Sun max 20%
Walking · Lv. 25–28 · 20%
Route 10 · AlolaWalking · version details vary

Alola Route 10 Area

Moon max 20%
Walking · Lv. 24–27 · 20%
Sun max 20%
Walking · Lv. 24–27 · 20%
Ultra Moon max 20%
Walking · Lv. 26–29 · 20%
Ultra Sun max 20%
Walking · Lv. 26–29 · 20%
Route 11 · AlolaWalking · version details vary

Alola Route 11 Area

Moon max 20%
Walking · Lv. 24–27 · 20%
Sun max 20%
Walking · Lv. 24–27 · 20%
Ultra Moon max 20%
Walking · Lv. 26–29 · 20%
Ultra Sun max 20%
Walking · Lv. 26–29 · 20%
Route 17 · AlolaWalking, SOS Encounter · version details vary

Alola Route 17 West

Moon max 20%
Walking · Lv. 31–34 · 20%
Sun max 20%
Walking · Lv. 31–34 · 20%
Ultra Moon max 20%
Walking · Lv. 33–36 · 20%
Ultra Sun max 35%
SOS Encounter · Lv. 33–36 · 15%Walking · Lv. 33–36 · 20%
Ula’ula Meadow · AlolaWalking · version details vary

Ulaula Meadow Area

Moon max 20%
Walking · Lv. 31–34 · 20%
Sun max 20%
Walking · Lv. 31–34 · 20%
Ultra Moon max 20%
Walking · Lv. 33–36 · 20%
Ultra Sun max 20%
Walking · Lv. 33–36 · 20%
Sky Pillar · HoennHorde · version details vary

Sky Pillar (1F)

Alpha Sapphire max 35%
Horde · Lv. 23 · 35%
Omega Ruby max 35%
Horde · Lv. 23 · 35%

Sky Pillar (3F)

Alpha Sapphire max 35%
Horde · Lv. 23 · 35%
Omega Ruby max 35%
Horde · Lv. 23 · 35%

Sky Pillar (5F)

Alpha Sapphire max 35%
Horde · Lv. 23 · 35%
Omega Ruby max 35%
Horde · Lv. 23 · 35%
Route 37 · JohtoWalking · version details vary

Road 37

Crystal max 5%
Walking · Lv. 15 · 4% · Time NightWalking · Lv. 15 · 1% · Time Night
Friend Safari · KalosWalking · version details vary

Friend Safari (Poison)

X max 33%
Walking · Lv. 30 · 33% · Friend Safari Slot 2
Y max 33%
Walking · Lv. 30 · 33% · Friend Safari Slot 2
Route 2 · KantoWalking · version details vary

Road 2 (north, towards Pewter City)

HeartGold max 5%
Walking · Lv. 7 · 4% · Time NightWalking · Lv. 7 · 1% · Time Night

Road 2 (south, towards Viridian City)

Crystal max 5%
Walking · Lv. 7 · 5% · Time Night
Gold max 5%
Walking · Lv. 7 · 5% · Time Night
HeartGold max 5%
Walking · Lv. 7 · 4% · Time NightWalking · Lv. 7 · 1% · Time Night
Viridian Forest · KantoHeadbutt · version details vary

Viridian Forest

HeartGold max 10%
Headbutt · Lv. 5–7 · 10% · Headbutt Tree Rare
Shadow Pokémon Lab · OrreSnag · version details vary

Shadow Pokémon Lab B2F

Colosseum max 100%
Snag · Lv. 43 · 100%
Route 229 · SinnohWalking · version details vary

Road 229

Diamond max 20%
Walking · Lv. 52 · 10% · Time Night
Pearl max 20%
Walking · Lv. 52 · 10% · Time Night
Platinum max 20%
Walking · Lv. 50 · 10% · Time Night
Dreamyard · UnovaDark Grass · version details vary

Dreamyard

Black max 10%
Dark Grass · Lv. 49 · 10%
White max 10%
Dark Grass · Lv. 49 · 10%

Dreamyard (B1F)

Black max 5%
Dark Grass · Lv. 49 · 5%
White max 5%
Dark Grass · Lv. 49 · 5%

Additional Images

PokeAPI sprites

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Ariados Biology and Behavior

Ariados is a nocturnal forest predator capable of producing strong silk from both its mouth and its rear spinneret, making it difficult at a glance to determine which end of its body produced a strand. Tiny hooks on its feet let it climb vertical walls and ceilings, while a continuous thread spun behind it can serve as a trail leading back to its nest as it wanders through the forest after dark. Captured prey may be wrapped in silk and bitten before Ariados slowly drinks its bodily fluids, but it sometimes uses a more elaborate strategy: attaching a thread to captured prey, releasing it, and later following the strand back to that animal and its companions. Humans in some regions weave Ariados silk into cloth valued for its exceptional strength. Unlike the stationary web-hunting behavior associated with Spinarak, Ariados is also described as an active nighttime hunter that leaves its web and aggressively searches for food.

Ariados Biological Data

National Pokédex
#168
Species
Long Leg Pokémon
Height
3' 7" (1.1 m)
Weight
73.9 lbs (33.5 kg)
Habitat
Forest
Color
Red
Body Style
Armor
Gender
50% female / 50% male

Misc

Catch Rate: 90

Base Experience: 140 Exp

Hatch Counter: 15

Ariados Size Comparison: BETA

Ariados is listed at 3' 7" (1.1 m) and shown in an in-chart visual comparison.

7 ft6 ft5 ft4 ft3 ft2 ft1 ft0 ft
ariados
Professor Oak
How is visual size determined?

Pokédex height is treated as the official listed measurement, but the chart uses pose-aware visual scaling so each sprite looks reasonable in a direct comparison.

For long or coiled Pokémon, the listed height may represent total body length rather than upright height. For Pokémon with floppy ears, leaves, feathers, antennae, wings, or other flexible features, the chart usually measures to the top of the solid, substantial part of the head or body instead of the tallest decorative feature.

The goal is not to replace the official height, but to make the artwork compare naturally at the size it appears to occupy.