#0259 · Hoenn · Generation 3 · starter

Marshtomp

Mud Fish Pokémon · Water/Ground-type

Marshtomp is a Water/Ground-type Pokémon, the Mud Fish Pokémon, number 259 (#0259) in the National Pokédex. It was introduced in Generation 3 and comes from the Hoenn region. It is 0.7 m tall and weighs 28 kg.

Marshtomp is a Water and Ground amphibian and the Mud Fish Pokémon; the Pokédex says it is much faster through mud than it is swimming. A thin, sticky film lets it live on land, but it grows weak if its skin dries out.

How to pronounce Marshtomp

Marshtomp is pronounced MARSH-tomp. The capital letters show the stressed syllable.

Listen to Marshtomp said out loud:

In Japanese it is ヌマクロー (Numacraw).

Hear every other name on the Pokémon pronunciation guide.

Lore

Biology

Marshtomp is an amphibious, salamander-like Pokémon, 0.7 m tall and 28 kg, with light blue skin, an orange belly and an angular black fin on its head. Its eyes are small and orange, with orange gills at the ends of its cheeks, and it has long arms ending in three-fingered hands and two black tail fins. Its hind legs are so well developed that, the Pokédex says, it can walk on them alone.

Behaviour

Marshtomp is at its best on muddy ground with poor footing, where it quickly overwhelms foes that are struggling to move. Its skin must stay moist, so when the tide is out it plays in beach mud to restore its fluids. It sleeps buried in mud.

Habitat

The Pokédex lists the water's edge, and Bulbapedia places Marshtomp in swamps and other wetlands. In Scarlet and Violet it comes from evolving a Mudkip in The Indigo Disk.

Powers

Torrent boosts its Water moves when its HP is low, and Damp is hidden. It learns Mud Shot as it evolves, then Water Pulse, Rock Slide, Muddy Water at level 40 and Hydro Pump at level 55, and can use Earthquake by TM. Base Attack 85, with 70 in each of HP, Defense and Special Defense, makes it a sturdy physical attacker.

Name origin

Marshtomp may combine 'marsh' and 'stomp'. The Japanese name is Numacraw (ヌマクロー), which may mix 沼 numa (swamp) with 'crawfish', 'crawl' or 'claw'.

Design inspiration

Bulbapedia says Marshtomp appears to be based on a mudpuppy or mudskipper. The single fin on its head recalls the helmet of a Roman murmillo gladiator, or a Greek Corinthian helmet with a horsehair crest. These are fan readings.

Evolution notes

Marshtomp evolves from Mudkip at level 16 and into Swampert at level 36.

In the games

Marshtomp is the middle stage of Professor Birch's Mudkip, first seen in Ruby and Sapphire. It appeared in Max Lair through Sword and Shield's Expansion Pass, and in Legends: Z-A it is found only in the Mega Dimension DLC, in Hyperspace Lumiose's Water-type and Ground-type wild zones.

In the anime

Brock's Mudkip evolved into a Marshtomp in 'A Chip Off the Old Brock', and it stayed on his team until he left it in Pewter City. In 'Up to Your Neck!', Ash and Goh freed a Marshtomp trapped in dry mud.

Fun facts

• Water and Ground leave Marshtomp with one weakness, Grass, which hits for four times damage; Bulbapedia says that is the fewest weaknesses of any typing containing one of the three starter types.
• In 'Lights, Camerupt, Action!', Max remembers a childhood film in which a Marshtomp played an Air Force pilot who proved to be an alien superhero.
• In the Pokémon Adventures manga, Ruby's Mudkip, nicknamed Mumu, evolves into a Marshtomp on arrival in Slateport City, and Ruby is delighted to film it.

Sources: Bulbapedia: Marshtomp (Pokémon) · Serebii: Marshtomp (Scarlet/Violet Pokédex)

Base stats

• HP: 70
• Attack: 85
• Defense: 70
• Sp. Atk: 60
• Sp. Def: 70
• Speed: 50

Marshtomp’s base stat total is 405. Its highest stat is Attack.

Type matchups

What is Marshtomp weak to?

Marshtomp takes extra damage from Grass (4×) moves.

It resists Fire (½×), Poison (½×), Rock (½×), Steel (½×).

It is immune to Electric moves.

Evolution

What does Marshtomp evolve from?

Marshtomp evolves from Mudkip at level 16.

How does Marshtomp evolve?

Marshtomp evolves into Swampert at level 36.

The whole family: Mudkip, Marshtomp, Swampert.

Abilities

• Torrent: Strengthens Water moves to inflict 1.5× damage at 1/3 max HP or less.
• Damp (hidden ability): Prevents Self-Destruct, Explosion, and Aftermath from working while the Pokémon is in battle.

Moves

Moves Marshtomp learns by level up in Scarlet / Violet

“Evo” means Marshtomp learns the move the moment it evolves: Mud Shot.

TM moves (46)

Marshtomp can learn 46 moves from TMs in Scarlet / Violet: Take Down, Mud-Slap, Protect, Water Pulse, Low Kick, Chilling Water, Facade, Bulldoze, Icy Wind, Mud Shot, Rock Tomb, Fling, Avalanche, Endure, Rain Dance, Dig, Brick Break, Body Slam, Ice Punch, Sleep Talk, Waterfall, Rest, Rock Slide, Substitute, Liquidation, Stealth Rock, Surf, Amnesia, Helping Hand, Earth Power, Ice Beam, Hydro Pump, Blizzard, Water Pledge, Earthquake, Tera Blast, Roar, Sand Tomb, Uproar, Focus Punch, Double-Edge, Endeavor, Whirlpool, Muddy Water, Sludge Wave, Curse.

Egg moves (12):Ancient Power, Bite, Counter, Curse, Double-Edge, Mirror Coat, Mud-Slap, Rock Smash, Sludge, Stomp, Wide Guard, Yawn.

Breeding & training

• Gender: 87.5% male, 12.5% female.
• Egg groups: Monster, Water 1.
• Egg cycles: 20 (steps to hatch, Scarlet/Violet: 2,560).
• Catch rate: 45 out of 255.
• Base friendship (Gen 8 onward): 50.
• Growth rate: Medium Slow (1,059,860 experience points to reach level 100).
• Defeating it gives 2 Attack effort values.
• Base experience yield: 142.

Pokédex entries

Marshtomp is much faster at traveling through mud than it is at swimming. This Pokémon's hindquarters exhibit obvious development, giving it the ability to walk on just its hind legs. (Sapphire, Alpha Sapphire)

The surface of Marshtomp's body is enveloped by a thin, sticky film that enables it to live on land. This Pokémon plays in mud on beaches when the ocean tide is low. (Ruby, Omega Ruby)

Living on muddy ground that provides poor footing has made its legs sturdy. (HeartGold, SoulSilver, Y)

Its sturdy legs give it sure footing, even in mud. It burrows into dirt to sleep. (Diamond, Pearl, Platinum, Black, White, Black 2, White 2, X)

It is at its best when on muddy ground with poor footing. It quickly overwhelms foes struggling in mud. (FireRed, LeafGreen)

Its toughened hind legs enable it to stand upright. Because it weakens if its skin dries out, it replenishes fluids by playing in mud. (Emerald)

Names around the world

Trivia

• Taller than 34% of all Pokémon (0.7 m).
• Heavier than 49% of all Pokémon (28 kg).
• Base stat total 405, ranked #605 of 1,025.
• One of 9 Pokémon that are both Water and Ground.
• One of 170 blue Pokémon.
• Number 8 of 135 Pokémon introduced in Generation 3 (Hoenn).
• Part of an evolution family of 3 Pokémon.
• Can learn 61 different moves in Scarlet / Violet.
• Catch rate 45: about 5.9% per Poké Ball at full health.
• Appears in 6 distinct Pokédex entries.

Sources and fact-checking

• Stats, types, abilities, moves, evolutions, forms and Pokédex entries: PokéAPI open game data.
• Lore: written by pokee.si in our own words, researched from Bulbapedia: Marshtomp (Pokémon), Serebii: Marshtomp (Scarlet/Violet Pokédex).
• Pronunciation (MARSH-tomp): it follows how the English anime, games or official videos say it.

Last checked: 20 October 2026. Every sentence of the lore was checked against Bulbapedia, Serebii and the game data.

Explore

Water-type Pokémon · Ground-type Pokémon · Water/Ground weaknesses and matchups · Hoenn region guide · Torrent ability · Damp ability · Compare Marshtomp · Full Pokédex · Type chart · All moves

Browse similar Pokémon

Gen 3 Water-type Pokémon · Gen 3 Ground-type Pokémon · Gen 3 Pokémon list · Blue Pokémon list · Monster egg group · Water 1 egg group · Pokémon that start with M · Fish Pokémon · Lizard Pokémon

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