#0183 · Johto · Generation 2

Marill

Aqua Mouse Pokémon · Water/Fairy-type

Marill is a Water/Fairy-type Pokémon, the Aqua Mouse Pokémon, number 183 (#0183) in the National Pokédex. It was introduced in Generation 2 and comes from the Johto region. It is 0.4 m tall and weighs 8.5 kg.

Marill is the Aqua Mouse Pokémon, a bouncy blue water-dweller with an oil-filled tail tip that works as a float. Its water-repellent fur dries almost instantly, so it never gets cold, even after swimming in a cold sea.

How to pronounce Marill

Marill is pronounced MAIR-il. The capital letters show the stressed syllable.

Listen to Marill said out loud:

In Japanese it is マリル (Maril).

Hear every other name on the Pokémon pronunciation guide.

Lore

Biology

Marill is a nearly spherical, two-legged blue rodent, 0.4 m tall and 8.5 kg, with a white belly, round red-lined ears and a zigzag black tail. The tail tip is a bubble-like ball of oil lighter than water, which acts as a buoy. The ears are sensitive enough to pick up distant sounds, and the water-repellent fur lets it swim fast without being slowed.

Behaviour

Marill is an enthusiastic swimmer. The Pokédex says it anchors its tail to a tree trunk while fishing beside a fast stream, and a lone tail bobbing on the surface means Marill is diving. The tail ball can glow when it attacks.

Habitat

The Pokédex lists the water's edge. In Scarlet and Violet it is found in Paldea's South, East and West Provinces, and it is not available in Legends: Z-A.

Diet

The Pokédex says it eats plants that grow on river bottoms.

Powers

Marill has Thick Fat, which halves Fire and Ice damage, Huge Power, which doubles its Attack, and the hidden Ability Sap Sipper. It starts with Water Gun, Rollout and Defense Curl, then learns Bubble Beam, Aqua Tail and Play Rough. Its Attack and Special Attack are a feeble 20 each, so it leans on its 70 HP until it evolves.

Name origin

Marill may combine mar ('sea' in Spanish and Portuguese) with 'rill', a small stream. The Japanese name is Maril (マリル), which may come from marui ('round') or mari ('ball').

Design inspiration

Marill may be a mouse crossed with a beach ball or lifebuoy, and Bulbapedia notes that its body and ears recall the shape of a water molecule. It might draw on water rats such as the European water vole, and its name, Shiny colours and tail could point to marimo, spherical lake algae. These are fan readings.

Evolution notes

Marill evolves from Azurill with high friendship and into Azumarill at level 18.

In the games

Marill plays Azurill's older brother in Pokémon Mystery Dungeon: Explorers of Time and Explorers of Darkness, and the species first appeared in Gold and Silver.

In the anime

Lyra's Marill was her principal partner and first appeared in 'An Egg Scramble!', and Tracey's Marill debuted in 'The Crystal Onix'. Five more form a team for the Fire and Rescue Grand Prix in 'The Fire-ing Squad!'.

Fun facts

• Fans often called it 'Pikablu' before Gold and Silver came out, and Topps' trading cards for the first film used that name too.
• Its name was once spelled 'Marril' on some merchandise for the first film.
• Bulbapedia notes that before Generation VI the Azurill family were the only known Pokémon that could have Huge Power.

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

Base stats

• HP: 70
• Attack: 20
• Defense: 50
• Sp. Atk: 20
• Sp. Def: 50
• Speed: 40

Marill’s base stat total is 250. Its highest stat is HP.

Type matchups

What is Marill weak to?

Marill takes extra damage from Electric (2×), Grass (2×), Poison (2×) moves.

It resists Fire (½×), Water (½×), Ice (½×), Fighting (½×), Bug (½×), Dark (½×).

It is immune to Dragon moves.

Evolution

What does Marill evolve from?

Marill evolves from Azurill (Friendship).

How does Marill evolve?

Marill evolves into Azumarill at level 18.

The whole family: Azurill, Marill, Azumarill.

Abilities

• Thick Fat: Halves damage from Fire and Ice moves.
• Huge Power: Doubles Attack in battle.
• Sap Sipper (hidden ability): Absorbs Grass moves, raising Attack one stage.

Moves

Moves Marill learns by level up in Scarlet / Violet

TM moves (50)

Marill can learn 50 moves from TMs in Scarlet / Violet: Take Down, Charm, Fake Tears, Mud-Slap, Protect, Water Pulse, Disarming Voice, Trailblaze, Chilling Water, Facade, Bulldoze, Swift, Icy Wind, Mud Shot, Draining Kiss, Fling, Endure, Rain Dance, Snowscape, Dig, Brick Break, Body Slam, Ice Punch, Sleep Talk, Light Screen, Waterfall, Metronome, Grass Knot, Rest, Substitute, Liquidation, Hyper Voice, Encore, Surf, Ice Spinner, Play Rough, Amnesia, Helping Hand, Ice Beam, Misty Terrain, Hydro Pump, Blizzard, Tera Blast, Knock Off, Focus Punch, Misty Explosion, Double-Edge, Whirlpool, Muddy Water, Alluring Voice.

Egg moves (9), which Azurill can hatch knowing:Aqua Jet, Belly Drum, Copycat, Perish Song, Present, Sing, Soak, Supersonic, Tickle.

Breeding & training

• Gender: 50% male, 50% female.
• Egg groups: Water 1, Fairy.
• Egg cycles: 10 (steps to hatch, Scarlet/Violet: 1,280).
• Catch rate: 190 out of 255.
• Base friendship (Gen 8 onward): 50.
• Growth rate: Fast (800,000 experience points to reach level 100).
• Defeating it gives 2 HP effort values.
• Base experience yield: 88.

Pokédex entries

Even after Marill swims in a cold sea, its waterrepellent fur dries almost as soon as Marill leaves the water. That's why this Pokémon is never cold. (Shield)

This Pokémon uses its round tail as a float. The ball of Marill's tail is filled with nutrients that have been turned into an oil. (Sword)

When fishing for food at the edge of a fast-running stream, Marill wraps its tail around the trunk of a tree. This Pokémon's tail is flexible and configured to stretch. (Sapphire, Alpha Sapphire)

Marill's oil-filled tail acts much like a life preserver. If you see just its tail bobbing on the water's surface, it's a sure indication that this Pokémon is diving beneath the water to feed on aquatic plants. (Ruby, Omega Ruby)

The tip of its tail is filled with oil that is lighter than water, so it acts as a float. (Pearl, Y)

The fur on its body naturally repels water. It can stay dry, even when it plays in the water. (Crystal, X)

Names around the world

Trivia

• Shortest Water type in Gen 2: 0.4 m, shared with 1 other.
• Taller than 11% of all Pokémon (0.4 m).
• Heavier than 24% of all Pokémon (8.5 kg).
• Base stat total 250, ranked #967 of 1,025.
• One of 4 Pokémon that are both Water and Fairy.
• One of 170 blue Pokémon.
• Number 32 of 100 Pokémon introduced in Generation 2 (Johto).
• Part of an evolution family of 3 Pokémon.
• Can learn 70 different moves in Scarlet / Violet.
• Catch rate 190: about 24.8% per Poké Ball at full health.
• Appears in 12 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: Marill (Pokémon), Serebii: Marill (Scarlet/Violet Pokédex).
• Pronunciation (MAIR-il): it follows how the English anime, games or official videos say it.

Last checked: 19 October 2026. Every sentence of the lore was checked against Bulbapedia, Serebii and the game data.

Explore

Water-type Pokémon · Fairy-type Pokémon · Water/Fairy weaknesses and matchups · Johto region guide · Thick Fat ability · Huge Power ability · Sap Sipper ability · Compare Marill · Full Pokédex · Type chart · All moves

Browse similar Pokémon

Gen 2 Water-type Pokémon · Gen 2 Fairy-type Pokémon · Gen 2 Pokémon list · Blue Pokémon list · Water 1 egg group · Fairy egg group · Pokémon that start with M · Mouse and Rodent Pokémon

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