In Legends: Arceus, 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.

What is Gastrodon weak to?

In Legends: Arceus, 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.

What is the best ability for Gastrodon?

In Legends: Arceus, 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.

What role does Gastrodon play in battle?

In Legends: Arceus, 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.

What are the best moves for Gastrodon?

In Legends: Arceus, 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.

Gastrodon - Weakness, Evolution, Moveset, EVs & Stats

Special

Support

BTier

39Speed · Very Slow

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.

Base Stats

Above

HP111

Attack83

Defense68

Sp. Atk92

Sp. Def82

Speed39

Total475

Details

Catch Rate

Challenging75 / 255

Growth Rate

Medium Fast1M XP

Height0.9 m

Weight29.9 kg

Base XP166

Abilities

Sticky HoldRare

Prevents a held item from being removed by other Pokémon.

Storm DrainTop Pick

Redirects single-target water moves to this Pokémon where possible. Absorbs Water moves, raising Special Attack one stage.

Sand ForceHA

Strengthens rock, ground, and steel moves to 1.3× their power during a sandstorm. Protects against sandstorm damage.

Storm Drain grants Water immunity

EV Yield

HP+2AtkDefSpASpDSpe

HP training target

Pokedex Entries

Found more often on the land than in the sea. More active when it’s cloudy or rainy out than when the weather is fair.

Legends: Arceus

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.

Gastrodon Weakness and Resistance Chart
Damage	Types
4x (Critical)	Grass
0.5x (Resist)	Fire, Poison, Rock, Steel
0x (Immune)	Electric

Type ChartGood

1Weak

4Resist

2Immune

Score+3

4xCritical

Grass

2xWeak

None

½xResist

Fire Poison Rock Steel

¼xResist

None

0xImmune

Electric Water

STAB (6)

Fire Ground Rock Electric Poison Steel

How to Beat Gastrodon in Legends: Arceus (Best Counters)

Leafeon Grass	A
Available Move Moves LeafageLv. 1 Damage vs Gastrodon Leafage 4x 111-133%KO View Leafeon builds →
Shaymin Grass	C
Obtain MethodFloaro Gardens Interact Encounter Available Move Moves LeafageLv. 1 Damage vs Gastrodon Leafage 4x 93-111%KO View Shaymin builds →
Cherrim Grass	C
Available Move Moves AbsorbLv. 1 Damage vs Gastrodon Absorb 4x 56-67% View Cherrim builds →
Parasect BugGrass	C
Available Move Moves AbsorbLv. 1 Damage vs Gastrodon Absorb 4x 56-67% View Parasect builds →
Dartrix GrassFlying	D
Upcoming Move Moves LeafageLv. 6 Learns Leafage at Level 6 View Dartrix builds →

Legends: Arceus 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

2 Forms

#422Shellos

Level 30

#423Gastrodon

Stat Comparison 2 Stages

Shellos

Water

Gastrodon

WaterGround

111+35

ATK

83+35

DEF

68+20

SP.ATK

92+35

SP.DEF

82+20

SPE

39+5

BST

325C-Tier

475B-Tier+150

ROLE

Balanced

Trick Room

TYPE

Utility

Mixed

Breeding is not available in this game

Legends: Arceus 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

Legends: Arceus uses different battle mechanics.

Competitive build content is not applicable for this game. Select a main series game for builds.

Moves

Gastrodon's movepool balances level-up moves with TM options. Consistent STAB comes from Hydro Pump and Earth Power, and Normal and Rock coverage and more keeps opponents from switching in for free. No major gaps here.

Level-Up Moves

Lv 1

Mud-Slap

D2010010Ground

Lv 5

Tackle

D4010035Normal

Lv 9

Water Pulse

C6010020Water

Lv 15

Ancient Power

D601005Rock

Lv 21

Mud Bomb

—658510Ground

Lv 29

Earth Power

S9010010Ground

Lv 37

Recover

S——10Normal

Lv 47

Hydro Pump

B110805Water

TM Moves

Gastrodon can't learn any TM moves

Egg Moves

Gastrodon doesn't have any Egg moves

Tutor Moves

Tut

Tutor

Bulldoze

C6010020Ground

Tutor

Earth Power

S9010010Ground

Tutor

Giga Impact

C150905Normal

Tutor

Hyper Beam

B150905Normal

Tutor

Ice Beam

A9010010Ice

Tutor

Icy Wind

A559515Ice

Tutor

Rest

C——10Psychic

Tutor

Rock Slide

D759010Rock

Tutor

Rock Smash

D4010015Fighting

Tutor

Sludge Bomb

C9010010Poison

Tutor

Stone Edge

C100805Rock

Tutor

Water Pulse

C6010020Water

How to Get Gastrodon in Legends: Arceus

Gastrodon starts showing up in mid-game routes at decent spawn rates across 3 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 Legends: Arceus

Shellos is your first catch on the way to Gastrodon. You'll find walking encounters from walking across 7 total spots in the chain.

Step 1Catch Shellos
Ramanas Island
Grass Water
Uncommon
Sandgem Flats
Grass Desert
Uncommon
Seagrass Haven
Grass
Uncommon
Tranquility Cove
Grass
Uncommon
Train until Level 30
Step 2Gastrodon ✓
Ramanas Island
Grass Water
Uncommon
Sandgem Flats
Grass Desert
Uncommon
Seagrass Haven
Grass
Uncommon
or evolve from Shellos (Step 1)

Gastrodon Guide

In Legends: Arceus, 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 Legends: Arceus, 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 Legends: Arceus, 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 Legends: Arceus, 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 Legends: Arceus, 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

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Tapu KokoRecovers with Roost, outspeeds ElectricFairy	A
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