Stats & Training
Gastrodon's spread is anchored by HP, with balanced defenses backing it up. Speed is the clear weak point. Worth 2 HP EVs per KO, and the medium-fast 1M XP curve keeps leveling painless.
It secretes a purple fluid to deter enemies. This fluid isn’t poisonous—instead, it’s super sticky, and once it sticks, it’s very hard to unstick.
Its body is covered in a sticky slime. It’s very susceptible to dehydration, so it can’t spend too much time on land.
Gastrodon Weakness
Gastrodon's Water/Ground typing leaves it vulnerable to Grass. Grass hits land at 4x, so they're the biggest threat. It shrugs off Electric-type attacks completely. It resists 4 types, giving it decent defensive coverage. Storm Drain grants an additional Water immunity, reshaping the matchup chart. With 111 HP and balanced defenses, Gastrodon can afford to eat a neutral hit or two.
| Damage | Types |
|---|---|
| 4x (Critical) | Grass |
| 0.5x (Resist) | Fire, Poison, Rock, Steel |
| 0x (Immune) | Electric |
Gloom GrassPoison | C | |
Available Moves Moves
Damage vs Gastrodon View Gloom builds →Solar Beam 4x165-195%KO Giga Drain 4x108-128%KO Mega Drain 4x64-75% Absorb 4x38-45% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x184-218%KO Magical Leaf 4x95-113%KO Mega Drain 4x70-83% Absorb 4x38-45% | ||
Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Lombre builds →Solar Beam 4x134-158%KO Mega Drain 4x50-60% Absorb 4x31-38% | ||
Nuzleaf GrassDark | D | |
Available Moves Moves
Damage vs Gastrodon View Nuzleaf builds →Solar Beam 4x134-158%KO Razor Leaf 4x83-98% Mega Drain 4x50-60% Absorb 4x31-38% | ||
Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Pumpkaboo builds →Solar Beam 4x108-128%KO Razor Leaf 4x76-90% Bullet Seed 4x38-45% | ||
Gloom GrassPoison | C | |
Available Moves Moves
Damage vs Gastrodon View Gloom builds →Solar Beam 4x156-185%KO Giga Drain 4x102-121%KO Mega Drain 4x60-70% Absorb 4x32-38% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x179-211%KO Magical Leaf 4x91-109%KO Mega Drain 4x65-77% Absorb 4x37-45% | ||
Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Lombre builds →Solar Beam 4x124-147%KO Mega Drain 4x48-57% Absorb 4x27-32% | ||
Nuzleaf GrassDark | D | |
Available Moves Moves
Damage vs Gastrodon View Nuzleaf builds →Solar Beam 4x124-147%KO Razor Leaf 4x76-89% Mega Drain 4x48-57% Absorb 4x27-32% | ||
Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Pumpkaboo builds →Solar Beam 4x102-121%KO Razor Leaf 4x70-83% Bullet Seed 4x37-45% | ||
Gloom GrassPoison | C | |
Available Moves Moves
Damage vs Gastrodon View Gloom builds →Solar Beam 4x150-177%KO Giga Drain 4x97-114%KO Mega Drain 4x53-63% Absorb 4x29-34% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x170-200%KO Magical Leaf 4x87-103%KO Mega Drain 4x63-74% Absorb 4x33-40% | ||
Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Lombre builds →Solar Beam 4x116-137%KO Mega Drain 4x43-51% Absorb 4x24-29% | ||
Nuzleaf GrassDark | D | |
Available Moves Moves
Damage vs Gastrodon View Nuzleaf builds →Solar Beam 4x116-137%KO Razor Leaf 4x72-86% Mega Drain 4x43-51% Absorb 4x24-29% | ||
Pumpkaboo GhostGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Pumpkaboo builds →Solar Beam 4x97-114%KO Razor Leaf 4x68-80% Bullet Seed 4x33-40% | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Maractus builds →Solar Beam 4x182-215%KO Petal Blizzard 4x134-158%KO Giga Drain 4x115-136%KO Mega Drain 4x63-74% | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Eldegoss builds →Solar Beam 4x145-171%KO Leaf Tornado 4x82-96% Magical Leaf 4x74-88% Razor Leaf 4x59-70% | ||
Gloom GrassPoison | C | |
Available Moves Moves
Damage vs Gastrodon View Gloom builds →Solar Beam 4x153-180%KO Giga Drain 4x96-114%KO Mega Drain 4x55-66% Absorb 4x29-35% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x174-206%KO Giga Drain 4x112-131%KO Magical Leaf 4x89-105%KO Mega Drain 4x63-74% | ||
Lombre WaterGrass | D | |
Available Moves Moves
Damage vs Gastrodon View Lombre builds →Solar Beam 4x119-140%KO Giga Drain 4x74-88% Mega Drain 4x45-53% Absorb 4x26-31% | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Maractus builds →Solar Beam 4x184-217%KO Petal Blizzard 4x134-158%KO Giga Drain 4x117-138%KO Mega Drain 4x63-75% | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Eldegoss builds →Solar Beam 4x145-171%KO Leaf Tornado 4x81-96% Magical Leaf 4x74-88% Razor Leaf 4x56-67% | ||
Shiinotic GrassFairy | C | |
Available Moves Moves
Damage vs Gastrodon View Shiinotic builds →Solar Beam 4x159-188%KO Giga Drain 4x102-121%KO Mega Drain 4x56-67% Absorb 4x31-38% | ||
Gloom GrassPoison | C | |
Available Moves Moves
Damage vs Gastrodon View Gloom builds →Solar Beam 4x152-179%KO Giga Drain 4x99-117%KO Mega Drain 4x53-63% Absorb 4x28-33% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x173-204%KO Giga Drain 4x110-129%KO Magical Leaf 4x88-104%KO Mega Drain 4x60-71% | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Maractus builds →Solar Beam 4x177-209%KO Petal Blizzard 4x129-152%KO Giga Drain 4x113-133%KO Mega Drain 4x61-72% | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Eldegoss builds →Solar Beam 4x142-167%KO Leaf Tornado 4x80-95% Magical Leaf 4x74-87% Razor Leaf 4x54-65% | ||
Shiinotic GrassFairy | C | |
Available Moves Moves
Damage vs Gastrodon View Shiinotic builds →Solar Beam 4x154-182%KO Giga Drain 4x100-118%KO Mega Drain 4x54-65% Absorb 4x28-34% | ||
Gloom GrassPoison | C | |
Available Moves Moves
Damage vs Gastrodon View Gloom builds →Solar Beam 4x148-175%KO Giga Drain 4x93-110%KO Mega Drain 4x51-61% Absorb 4x28-34% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x171-201%KO Giga Drain 4x109-129%KO Magical Leaf 4x87-103%KO Mega Drain 4x61-72% | ||
Dhelmise GhostGrass | B | |
Available Moves Moves
Damage vs Gastrodon View Dhelmise builds →Solar Beam 4x151-178%KO Giga Drain 4x96-113%KO Mega Drain 4x52-62% Absorb 4x27-33% | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Maractus builds →Solar Beam 4x179-211%KO Petal Blizzard 4x133-156%KO Giga Drain 4x114-135%KO Mega Drain 4x62-73% | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Eldegoss builds →Solar Beam 4x145-171%KO Leaf Tornado 4x80-95% Magical Leaf 4x74-87% Razor Leaf 4x55-65% | ||
Shiinotic GrassFairy | C | |
Available Moves Moves
Damage vs Gastrodon View Shiinotic builds →Solar Beam 4x158-185%KO Giga Drain 4x99-116%KO Mega Drain 4x55-65% Absorb 4x31-36% | ||
Roselia GrassPoison | D | |
Available Moves Moves
Damage vs Gastrodon View Roselia builds →Solar Beam 4x170-200%KO Giga Drain 4x108-127%KO Magical Leaf 4x86-102%KO Mega Drain 4x58-69% | ||
Ferrothorn GrassSteel | A | |
Available Moves Moves
Damage vs Gastrodon View Ferrothorn builds →Power Whip 4x191-225%KO Solar Beam 4x108-127%KO | ||
Dhelmise GhostGrass | B | |
Available Moves Moves
Damage vs Gastrodon View Dhelmise builds →Solar Beam 4x154-181%KO Giga Drain 4x97-114%KO Mega Drain 4x54-64% Absorb 4x28-34% | ||
Abomasnow GrassIce | C | |
Available Moves Moves
Damage vs Gastrodon View Abomasnow builds →Wood Hammer 4x188-221%KO Solar Beam 4x162-191%KO Magical Leaf 4x82-97% Razor Leaf 4x88-104%KO | ||
Maractus Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Maractus builds →Solar Beam 4x182-215%KO Petal Blizzard 4x134-158%KO Giga Drain 4x114-134%KO Mega Drain 4x63-74% | ||
Eldegoss Grass | C | |
Available Moves Moves
Damage vs Gastrodon View Eldegoss builds →Leaf Storm 4x156-184%KO Solar Beam 4x145-171%KO Leaf Tornado 4x79-94% Magical Leaf 4x74-87% | ||
S | ||
Recommended Build AbilityFlashfire ItemLeftovers NatureTimid Moves View Heatran builds →
| ||
A | ||
Recommended Build AbilityElectric Surge ItemHeavy-Duty Boots NatureTimid Moves
Damage vs Gastrodon View Tapu Koko builds →Dazzling Gleam27-31% | ||
B | ||
Recommended Build AbilityDrizzle ItemDamprock NatureBold Moves
Damage vs Gastrodon View Pelipper builds →U Turn6-8% Scald21-25% | ||
B | ||
Recommended Build AbilitySheerforce ItemLife Orb NatureTimid Moves
Damage vs Gastrodon View Nidoking builds →Ice Beam24-29% | ||
B | ||
Recommended Build AbilityRegenerator ItemHeavy-Duty Boots NatureRelaxed Moves
Damage vs Gastrodon View Slowbro builds →Scald22-26% | ||
Sword & Shield Evolution
Gastrodon is the evolved form of Shellos. Breeding produces Shellos eggs, and they're average hatch time. Evolving from Shellos gave Gastrodon the biggest boost in HP (+35), bringing the total to 475 stats. View every chain in the Evolution Chart.
How to Evolve
Breeding
Breed with Gastrodon to get Shellos eggs easily using 46 partners from the Indeterminate and Water1 egg groups. Notable egg moves include Acid Armor, Clear Smog, Counter and 8 more.
Sword & Shield Gastrodon Best Moveset
Stormdrain isn't flashy, but it matters. Combined with Leftovers for passive recovery each turn and max HP and Defense EVs, Gastrodon fills the defensive wall slot reliably. Calm nature finishes the spread.
Best Build
Gastrodon best EVs are HP and Defense
Doubles Bulky Support Moveset
- Earth Power
- Muddy Water
- Icy Wind
- Ice Beam
Recommended Teammates
Wall Moveset
- Recover
- Scald
- Earth Power
- Toxic
Recommended Teammates
Moves
The natural movepool does the job, but Acid Armor and Clear Smog from the egg pool give Gastrodon something extra. Pair those with Hydro Pump and Earthquake for STAB and coverage across 7 types for reach, and the kit fills out nicely.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
How to Get Gastrodon in Sword & Shield
Gastrodon starts showing up in late-game routes at high spawn rates across 4 encounter spots. The list below is sorted so you can pick what fits your current progress without scrolling through everything.
Where To Catch Gastrodon in Sword & Shield
Shellos is your first catch on the way to Gastrodon. You'll find walking encounters from Lv. 20-44 across 30 total spots in the chain.
Step 1Catch ShellosMotostoke RiverbankShieldGrass Lv.26-2835%MidThunderstormMotostoke RiverbankSwordGrass Lv.26-2835%MidThunderstormGiant's CapSwordGrass Lv.26-2830%MidRainingGiant's CapShieldGrass Lv.26-2830%MidRainingGiant's MirrorShieldGrass Lv.26-2830%MidRainingGiant's MirrorSwordGrass Lv.26-2830%MidRainingStony WildernessShieldGrass Lv.26-2830%MidRainingStony WildernessSwordGrass Lv.26-2830%MidRainingGalar Mine No. 2ShieldOverworld Lv.20-24 Cave25%MidAll WeatherGalar Mine No. 2SwordOverworld Lv.20-24 Cave25%MidAll WeatherBridge FieldShieldGrass Lv.26-2825%MidRainingBridge FieldSwordGrass Lv.26-2825%MidRainingBridge FieldShieldGrass Lv.26-2820%MidThunderstormBridge FieldSwordGrass Lv.26-2820%MidThunderstormGiant's CapSwordGrass Lv.26-2820%MidThunderstormGiant's CapShieldGrass Lv.26-2820%MidThunderstormGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidThunderstormGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidIntense SunGalar Mine No. 2SwordGrass Lv.20-24 Cave10%MidAll WeatherGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidSnowingGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidSandstormGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidRainingGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidHeavy FogGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidOvercastGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidNormal WeatherGalar Mine No. 2ShieldGrass Lv.20-24 Cave10%MidSnowstorm
Step 2Gastrodon ✓Route 9 - in Circhester BayShieldGrass Lv.39-43 Route30%LateAll WeatherRoute 9 - in Circhester BaySwordGrass Lv.39-43 Route30%LateAll WeatherRoute 9ShieldOverworld Lv.41-44 Route15%LateAll WeatherRoute 9SwordOverworld Lv.41-44 Route15%LateAll Weatheror evolve from Shellos (Step 1)
Gastrodon Guide
In Sword & Shield, Don't let Gastrodon's 475 base stat total fool you. Storm Drain is what makes it tick. It punches way above its weight class. We rate it B-Tier as a support. Earthpower with Leftovers is the standard set.
In Sword & Shield, watch for Roserade (Grass) when using Gastrodon. They all hit it super-effectively with STAB. Roserade is the most dangerous since Grass moves deal 4x damage. Only 1 weakness means fewer dedicated counters to worry about. At base 39 Speed, Gastrodon won't outrun any of these threats so switching to a resist is usually the safer play.
In Sword & Shield, Run Storm Drain on Gastrodon. It's the ability that defines how you build around it and the main reason it holds a competitive niche. Gastrodon also gets Sticky Hold and Sand Force, but they don't compare.
In Sword & Shield, Gastrodon fills the support role. It's a special attacker with base 92 Sp. Atk. Base 39 Speed is low. Priority moves or Trick Room are the way to go. And it's enough bulk to take a hit or two.
In Sword & Shield, run Earthpower, Muddywater, Icywind, and Ice Beam on Gastrodon. Earthpower is the most common pick at 20% usage. This set covers the support role with a mix of damage and utility.
Game Availability
Gastrodon first appeared in Diamond & Pearl and has been available in 13 games across 7 generations. Obtainable through wild encounters in most titles where it appears.
Click a game to view version-specific details
- Gen 1Y
Yellow - Gen 1RB

Red & Blue - Gen 2GS

Gold & Silver - Gen 2C
Crystal - Gen 3RS

Ruby & Sapphire - Gen 3FRLG

FireRed & LeafGreen - Gen 3E
Emerald - Gen 4Pt
Platinum - Gen 4HGSS

HeartGold & SoulSilver - Gen 4DPDebut

Diamond & Pearl - Gen 5BW

Black & White - Gen 5B2W2

Black 2 & White 2 - Gen 6XY

X & Y - Gen 6ORAS

Omega Ruby & Alpha Sapphire - Gen 7USUM

Ultra Sun & Ultra Moon - Gen 7SM

Sun & Moon - Gen 7LGPE

Let's Go Pikachu & Eevee - Gen 8SwSh

Sword & Shield - Gen 8PLA
Legends: Arceus - Gen 8BDSP

Brilliant Diamond & Shining Pearl - Gen 9SV

Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW

Winds & Waves
