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Gastrodon

#231 in the Sword and Shield Pokédex • Sea Slug Pokémon

Sword

Its search for food sometimes leads it onto land, where it leaves behind a sticky trail of slime as it passes through.

Shield

The softness of its body helps disperse the force of impacts, so although its body is uncommonly squishy, it’s also surprisingly resilient.

Pokédexes

Galar #231

Egg Group

Water 1Amorphous

Steps to Hatch

5,120

Effort Values Yielded

2 HP

Gender Ratio

50% male / 50% female

Capture Rate

75

Base Experience

166
PokémonRequiresEvolution
Shellos

Shellos

#230

Level 30

Gastrodon

Gastrodon

#231

Gastrodon East

Drifloon

Gastrodon normal sprite

Normal

Shiny Gastrodon sprite

Shiny

Gastrodon

Sea Slug Pokémon

#231
WaterGround

Height

0.9 m

Weight

29.9 kg

Base XP

166

Abilities

Sticky HoldStorm DrainSand Force

HP

111

Attack

83

Defense

68

Sp. Atk

92

Sp. Def

82

Speed

39

Total

475

Type Chart

Weaknesses

Takes 4× from

Grass

Resistances

Takes 0× from

Electric

Takes 0.5× from

FirePoisonRockSteel
Class
Description
StartWater GunWaterSpecial4010025

The target is blasted with a forceful shot of water.

StartRecoverNormalStatus--5

Restoring its own cells, the user restores its own HP by half of its max HP.

StartHardenNormalStatus--30

The user stiffens all the muscles in its body to raise its Defense stat.

StartMud-SlapGroundSpecial2010010

The user hurls mud in the target’s face to inflict damage and lower its accuracy.

15Water PulseWaterSpecial6010020

The user attacks the target with a pulsing blast of water. This may also confuse the target.

20Ancient PowerRockSpecial601005

The user attacks with a prehistoric power. This may also raise all the user’s stats at once.

25Body SlamNormalPhysical8510015

The user drops onto the target with its full body weight. This may also leave the target with paralysis.

33Muddy WaterWaterSpecial908510

The user attacks by shooting muddy water at opposing Pokémon. This may also lower their accuracy.

39Earth PowerGroundSpecial9010010

The user makes the ground under the target erupt with power. This may also lower the target’s Sp. Def stat.

46Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water-type moves. It lowers the power of Fire-type moves.

53MementoDarkStatus-10010

The user faints when using this move. In return, this harshly lowers the target’s Attack and Sp. Atk stats.

Class
Description
TM08Hyper BeamNormalSpecial150905

The target is attacked with a powerful beam. The user can’t move on the next turn.

TM09Giga ImpactNormalPhysical150905

The user charges at the target using every bit of its power. The user can’t move on the next turn.

TM15DigGroundPhysical8010010

The user burrows into the ground, then attacks on the next turn.

TM21RestPsychicStatus--5

The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions.

TM22Rock SlideRockPhysical759010

Large boulders are hurled at opposing Pokémon to inflict damage. This may also make the opposing Pokémon flinch.

TM24SnoreNormalSpecial5010015

This attack can be used only if the user is asleep. The harsh noise may also make the target flinch.

TM25ProtectNormalStatus--10

This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession.

TM27Icy WindIceSpecial559515

The user attacks with a gust of chilled air. This also lowers opposing Pokémon’s Speed stats.

TM31AttractNormalStatus-10015

If it is the opposite gender of the user, the target becomes infatuated and less likely to attack.

TM32SandstormRockStatus--10

A five-turn sandstorm is summoned to hurt all combatants except Rock, Ground, and Steel types. It raises the Sp. Def stat of Rock types.

TM33Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water-type moves. It lowers the power of Fire-type moves.

TM35HailIceStatus--10

The user summons a hailstorm lasting five turns. It damages all Pokémon except Ice types.

TM36WhirlpoolWaterSpecial358515

The user traps the target in a violent swirling whirlpool for four to five turns.

TM39FacadeNormalPhysical7010020

This attack move doubles its power if the user is poisoned, burned, or paralyzed.

TM45DiveWaterPhysical8010010

Diving on the first turn, the user floats up and attacks on the next turn.

TM46Weather BallNormalSpecial5010010

This attack move varies in power and type depending on the weather.

TM48Rock TombRockPhysical609515

Boulders are hurled at the target. This also lowers the target’s Speed stat by preventing its movement.

TM49Sand TombGroundPhysical358515

The user traps the target inside a harshly raging sandstorm for four to five turns.

TM53Mud ShotGroundSpecial559515

The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat.

TM55BrineWaterSpecial6510010

If the target’s HP is half or less, this attack will hit with double the power.

TM76RoundNormalSpecial6010015

The user attacks the target with a song. Others can join in the Round to increase the power of the attack.

TM81BulldozeGroundPhysical6010020

The user strikes everything around it by stomping down on the ground. This lowers the Speed stats of those hit.

TM98Stomping TantrumGroundPhysical7510010

Driven by frustration, the user attacks the target. If the user’s previous move has failed, the power of this move doubles.

TR01Body SlamNormalPhysical8510015

The user drops onto the target with its full body weight. This may also leave the target with paralysis.

TR03Hydro PumpWaterSpecial110805

The target is blasted by a huge volume of water launched under great pressure.

TR04SurfWaterSpecial9010015

The user attacks everything around it by swamping its surroundings with a giant wave.

TR05Ice BeamIceSpecial9010010

The target is struck with an icy-cold beam of energy. This may also leave the target frozen.

TR06BlizzardIceSpecial110705

A howling blizzard is summoned to strike opposing Pokémon. This may also leave the opposing Pokémon frozen.

TR10EarthquakeGroundPhysical10010010

The user sets off an earthquake that strikes every Pokémon around it.

TR16WaterfallWaterPhysical8010015

The user charges at the target and may make it flinch.

TR17AmnesiaPsychicStatus--20

The user temporarily empties its mind to forget its concerns. This sharply raises the user’s Sp. Def stat.

TR20SubstituteNormalStatus--10

The user creates a substitute for itself using some of its HP. The substitute serves as the user’s decoy.

TR22Sludge BombPoisonSpecial9010010

Unsanitary sludge is hurled at the target. This may also poison the target.

TR26EndureNormalStatus--10

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

TR27Sleep TalkNormalStatus--10

While it is asleep, the user randomly uses one of the moves it knows.

TR45Muddy WaterWaterSpecial908510

The user attacks by shooting muddy water at opposing Pokémon. This may also lower their accuracy.

TR67Earth PowerGroundSpecial9010010

The user makes the ground under the target erupt with power. This may also lower the target’s Sp. Def stat.

TR75Stone EdgeRockPhysical100805

The user stabs the target from below with sharpened stones. Critical hits land more easily.

TR78Sludge WavePoisonSpecial9510010

The user strikes everything around it by swamping the area with a giant sludge wave. This may also poison those hit.

TR84ScaldWaterSpecial8010015

The user shoots boiling hot water at its target. This may also leave the target with a burn.

Class
Description
Skitter SmackBugPhysical709010

The user skitters behind the target to attack. This also lowers the target’s Sp. Atk stat.

Sticky Hold

Ability Slot 1

Items held by the Pokémon are stuck fast and cannot be removed by other Pokémon.

Prevents a held item from being removed by other Pokémon.

Storm Drain

Ability Slot 2

Draws in all Water-type moves. Instead of being hit by Water-type moves, it boosts its Sp. Atk.

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

Sand Force

Hidden Ability

Boosts the power of Rock-, Ground-, and Steel-type moves in a sandstorm.

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

Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.

SwSh / Pokédex

Gastrodon

Gastrodon

#231 in the Sword and Shield Pokédex • Sea Slug Pokémon

Sword

Its search for food sometimes leads it onto land, where it leaves behind a sticky trail of slime as it passes through.

Shield

The softness of its body helps disperse the force of impacts, so although its body is uncommonly squishy, it’s also surprisingly resilient.

Pokédexes

Galar #231

Egg Group

Water 1Amorphous

Steps to Hatch

5,120

Effort Values Yielded

2 HP

Gender Ratio

50% male / 50% female

Capture Rate

75

Base Experience

166
PokémonRequiresEvolution
Shellos

Shellos

#230

Level 30

Gastrodon

Gastrodon

#231

Gastrodon East

Drifloon

Gastrodon normal sprite

Normal

Shiny Gastrodon sprite

Shiny

Gastrodon

Sea Slug Pokémon

#231
WaterGround

Height

0.9 m

Weight

29.9 kg

Base XP

166

Abilities

Sticky HoldStorm DrainSand Force

HP

111

Attack

83

Defense

68

Sp. Atk

92

Sp. Def

82

Speed

39

Total

475

Type Chart

Weaknesses

Takes 4× from

Grass

Resistances

Takes 0× from

Electric

Takes 0.5× from

FirePoisonRockSteel
Class
Description
StartWater GunWaterSpecial4010025

The target is blasted with a forceful shot of water.

StartRecoverNormalStatus--5

Restoring its own cells, the user restores its own HP by half of its max HP.

StartHardenNormalStatus--30

The user stiffens all the muscles in its body to raise its Defense stat.

StartMud-SlapGroundSpecial2010010

The user hurls mud in the target’s face to inflict damage and lower its accuracy.

15Water PulseWaterSpecial6010020

The user attacks the target with a pulsing blast of water. This may also confuse the target.

20Ancient PowerRockSpecial601005

The user attacks with a prehistoric power. This may also raise all the user’s stats at once.

25Body SlamNormalPhysical8510015

The user drops onto the target with its full body weight. This may also leave the target with paralysis.

33Muddy WaterWaterSpecial908510

The user attacks by shooting muddy water at opposing Pokémon. This may also lower their accuracy.

39Earth PowerGroundSpecial9010010

The user makes the ground under the target erupt with power. This may also lower the target’s Sp. Def stat.

46Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water-type moves. It lowers the power of Fire-type moves.

53MementoDarkStatus-10010

The user faints when using this move. In return, this harshly lowers the target’s Attack and Sp. Atk stats.

Class
Description
TM08Hyper BeamNormalSpecial150905

The target is attacked with a powerful beam. The user can’t move on the next turn.

TM09Giga ImpactNormalPhysical150905

The user charges at the target using every bit of its power. The user can’t move on the next turn.

TM15DigGroundPhysical8010010

The user burrows into the ground, then attacks on the next turn.

TM21RestPsychicStatus--5

The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions.

TM22Rock SlideRockPhysical759010

Large boulders are hurled at opposing Pokémon to inflict damage. This may also make the opposing Pokémon flinch.

TM24SnoreNormalSpecial5010015

This attack can be used only if the user is asleep. The harsh noise may also make the target flinch.

TM25ProtectNormalStatus--10

This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession.

TM27Icy WindIceSpecial559515

The user attacks with a gust of chilled air. This also lowers opposing Pokémon’s Speed stats.

TM31AttractNormalStatus-10015

If it is the opposite gender of the user, the target becomes infatuated and less likely to attack.

TM32SandstormRockStatus--10

A five-turn sandstorm is summoned to hurt all combatants except Rock, Ground, and Steel types. It raises the Sp. Def stat of Rock types.

TM33Rain DanceWaterStatus--5

The user summons a heavy rain that falls for five turns, powering up Water-type moves. It lowers the power of Fire-type moves.

TM35HailIceStatus--10

The user summons a hailstorm lasting five turns. It damages all Pokémon except Ice types.

TM36WhirlpoolWaterSpecial358515

The user traps the target in a violent swirling whirlpool for four to five turns.

TM39FacadeNormalPhysical7010020

This attack move doubles its power if the user is poisoned, burned, or paralyzed.

TM45DiveWaterPhysical8010010

Diving on the first turn, the user floats up and attacks on the next turn.

TM46Weather BallNormalSpecial5010010

This attack move varies in power and type depending on the weather.

TM48Rock TombRockPhysical609515

Boulders are hurled at the target. This also lowers the target’s Speed stat by preventing its movement.

TM49Sand TombGroundPhysical358515

The user traps the target inside a harshly raging sandstorm for four to five turns.

TM53Mud ShotGroundSpecial559515

The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat.

TM55BrineWaterSpecial6510010

If the target’s HP is half or less, this attack will hit with double the power.

TM76RoundNormalSpecial6010015

The user attacks the target with a song. Others can join in the Round to increase the power of the attack.

TM81BulldozeGroundPhysical6010020

The user strikes everything around it by stomping down on the ground. This lowers the Speed stats of those hit.

TM98Stomping TantrumGroundPhysical7510010

Driven by frustration, the user attacks the target. If the user’s previous move has failed, the power of this move doubles.

TR01Body SlamNormalPhysical8510015

The user drops onto the target with its full body weight. This may also leave the target with paralysis.

TR03Hydro PumpWaterSpecial110805

The target is blasted by a huge volume of water launched under great pressure.

TR04SurfWaterSpecial9010015

The user attacks everything around it by swamping its surroundings with a giant wave.

TR05Ice BeamIceSpecial9010010

The target is struck with an icy-cold beam of energy. This may also leave the target frozen.

TR06BlizzardIceSpecial110705

A howling blizzard is summoned to strike opposing Pokémon. This may also leave the opposing Pokémon frozen.

TR10EarthquakeGroundPhysical10010010

The user sets off an earthquake that strikes every Pokémon around it.

TR16WaterfallWaterPhysical8010015

The user charges at the target and may make it flinch.

TR17AmnesiaPsychicStatus--20

The user temporarily empties its mind to forget its concerns. This sharply raises the user’s Sp. Def stat.

TR20SubstituteNormalStatus--10

The user creates a substitute for itself using some of its HP. The substitute serves as the user’s decoy.

TR22Sludge BombPoisonSpecial9010010

Unsanitary sludge is hurled at the target. This may also poison the target.

TR26EndureNormalStatus--10

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

TR27Sleep TalkNormalStatus--10

While it is asleep, the user randomly uses one of the moves it knows.

TR45Muddy WaterWaterSpecial908510

The user attacks by shooting muddy water at opposing Pokémon. This may also lower their accuracy.

TR67Earth PowerGroundSpecial9010010

The user makes the ground under the target erupt with power. This may also lower the target’s Sp. Def stat.

TR75Stone EdgeRockPhysical100805

The user stabs the target from below with sharpened stones. Critical hits land more easily.

TR78Sludge WavePoisonSpecial9510010

The user strikes everything around it by swamping the area with a giant sludge wave. This may also poison those hit.

TR84ScaldWaterSpecial8010015

The user shoots boiling hot water at its target. This may also leave the target with a burn.

Class
Description
Skitter SmackBugPhysical709010

The user skitters behind the target to attack. This also lowers the target’s Sp. Atk stat.

Sticky Hold

Ability Slot 1

Items held by the Pokémon are stuck fast and cannot be removed by other Pokémon.

Prevents a held item from being removed by other Pokémon.

Storm Drain

Ability Slot 2

Draws in all Water-type moves. Instead of being hit by Water-type moves, it boosts its Sp. Atk.

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

Sand Force

Hidden Ability

Boosts the power of Rock-, Ground-, and Steel-type moves in a sandstorm.

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

Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.