#0423

Gastrodon

Sea Slug Pokémon

Game version

AppearanceStandard

Gastrodon

Gastrodon (shiny)

Height: 0.9 m
Weight: 29.9 kg

Training & breeding details

Gender50.0% ♂ · 50.0% ♀

Catch rate75(17.5%)Tricky

Base friendship70Standard

Hatch time20 cycles · ~5,355 steps

Growth ratemedium

Base EXP166

Eats beach sand for nourishment. Should one Gastrodon encounter another of a different color, a fierce battle will inevitably ensue.

2 TCG Pocket cards

Base stats

HP

111

Attack

83

Defense

68

Sp. Atk

92

Sp. Def

82

Speed

39

Total

475

Base Stat Total

Abilities

Prevents a held item from being removed by other Pokémon.

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

Sand ForceHidden

Strengthens Rock, Ground, and Steel moves to 1.3× their power during a sandstorm. Protects against sandstorm damage.

Egg groups: Water 1, Amorphous

On this page

Type defenses

Damage taken from each attacking type.

Weak to

Resistant to

Rock½×

Fire½×

Immune to

Competitive movesets

Smogon University

Battle-ready sets by tier, straight from Smogon. Pick a generation and format — a “/” means either option works in that slot.

Generation

Mixed Defense

UU

Moves

Item

Heavy-Duty Boots / Leftovers

AbilityStorm Drain

NatureCalm+SpD/−Atk

TeraPoisonFairyGhost

EV spread

HP252

Def156

SpD▲100

Source: Smogon (via pkmn) · Updated: Oct 6, 2026

Where to find Gastrodon

Wild encounter locations across the games. Availability may also include trades, evolution, gifts, and events not listed here.

Diamond

Fuego Ironworks Route 218 Route 221 Route 222 Route 224 Sea Route 230

Pearl

Fuego Ironworks Route 218 Route 221 Route 222 Route 224 Sea Route 230

Platinum

Canalave City Fuego Ironworks Pastoria City Route 205 Route 212 Route 213 Route 218 Route 224 Valley Windworks

X

Y

Sun

Ancient Poni Path Exeggutor Island Poni Wilds

Moon

Ancient Poni Path Exeggutor Island Poni Wilds

Ultra Sun

Ancient Poni Path Exeggutor Island Poni Breaker Coast Poni Wilds

Ultra Moon

Ancient Poni Path Exeggutor Island Poni Breaker Coast Poni Wilds

Sword

Bridge Field Dusty Bowl Galar Mine No. 2 Giant's Cap Giant's Mirror Lake of Outrage Rolling Fields Route 9 South Lake Miloch West Lake Axewell

Shield

Bridge Field Dusty Bowl Galar Mine No. 2 Giant's Cap Giant's Mirror Lake of Outrage Rolling Fields Route 9 South Lake Miloch West Lake Axewell

Crown Tundra (Sword)

Crown Tundra (Shield)

Evolution

Shellos

Lv. 30

Gastrodon

All Pokémon evolution families

Notable moves

The strongest damaging moves Gastrodon can learn — same-type (STAB) moves get a 1.5× power bonus in battle.

Muddy WaterSTAB

Earth PowerSTAB

LiquidationSTAB

Moves

Find a move16 of 16

Scroll across the table for type, power, accuracy and PP →

Lv.	Move & effect	Type	Class	Power	Acc.	PP
1	Harden Raises the user’s Defense by one stage.	Normal	Status	—	—	30
1	Mud Sport Halves all Electric-type damage.	Ground	Status	—	—	15
1	Mud-Slap Has a chance to lower the target’s accuracy by one stage.	Ground	Special	20	100	10
1	Recover Heals the user by half its max HP.	Normal	Status	—	—	5
1	Water Gun Inflicts regular damage with no additional effect.	Water	Special	40	100	25
5	Tackle Inflicts regular damage with no additional effect.	Normal	Physical	40	100	35
15	Water Pulse Has a chance to confuse the target.	Water	Special	60	100	20
16	Hidden Power Power and type depend upon user’s IVs. Power can range from 30 to 70.	Normal	Special	60	100	15
20	Ancient Power Has a chance to raise all of the user’s stats by one stage.	Rock	Special	60	100	5
21	Mud Bomb Has a chance to lower the target’s accuracy by one stage.	Ground	Special	65	85	10
25	Body Slam Has a chance to paralyze the target.	Normal	Physical	85	100	15
33	Muddy Water Has a chance to lower the target’s accuracy by one stage.	Water	Special	90	85	10
39	Earth Power Has a chance to lower the target’s Special Defense by one stage.	Ground	Special	90	100	10
46	Rain Dance Changes the weather to rain for five turns.	Water	Status	—	—	5
47	Hydro Pump Inflicts regular damage with no additional effect.	Water	Special	110	80	5
53	Memento Lowers the target’s Attack and Special Attack by two stages. User faints.	Dark	Status	—	100	10

Sprites & renders

19 sprites & renders for Gastrodon.

Official artwork

Pokémon HOME

Animated

Animated (back)

Front

Back

Across the games

Menu Icons

Black · White

Menu Icons

Platinum

Diamond · Pearl

HeartGold · SoulSilver

scarlet violet

X · Y

Menu Icons

ORAS

Menu Icons

Ultra Sun · Moon

Menu Icons

More Water-type Pokémon

Others that share this Pokémon's primary type.

All Water-type Pokémon

Community notes

No reader notes on Gastrodon yet.

Cite this page

“Gastrodon”. Pokémonism. Retrieved [date] from pokemonism.com/pokedex/gastrodon.

Species data from PokéAPI.