#0453 · Sinnoh · Generation 4

Croagunk

Toxic Mouth Pokémon · Poison/Fighting-type

Croagunk is a Poison/Fighting-type Pokémon, the Toxic Mouth Pokémon, number 453 (#0453) in the National Pokédex. It was introduced in Generation 4 and comes from the Sinnoh region. It is 0.7 m tall and weighs 23 kg.

Croagunk is the Toxic Mouth Pokémon, a poison dart frog that inflates its cheeks to make an eerie noise, then jabs anyone who flinches. Dirty fighter or not, it became popular after a drug company adopted it as its mascot.

How to pronounce Croagunk

Croagunk is pronounced KROH-gunk. The capital letters show the stressed syllable.

Listen to Croagunk said out loud:

In Japanese it is グレッグル (Gureggru).

Hear every other name on the Pokémon pronunciation guide.

Lore

Biology

Croagunk is a dark ultramarine bipedal frog, 0.7 m tall and 23 kg, with yellow eyes ringed in black, wide flat teeth and orange cheek pouches that swell up. White bands circle its chest, set slightly higher on a female. Its middle fingers are orange, and the Pokédex says its cheek sacs and fingers hold poison that becomes medicinal once diluted.

Behaviour

Croagunk rarely fights fairly, but the Pokédex says that is strictly to survive. The Pokédex calls it dastardly, yet says its peculiar cry and comical looks have won it a measure of popularity. Bulbapedia, citing Pokémon Sleep, says it puffs up its poison sacs even in its sleep, and the sound sometimes wakes it.

Habitat

Bulbapedia says it favours swamps and wooded areas. In Scarlet and Violet it is in Paldea's South and West Provinces and 2-star Tera Raids, but it is unobtainable in Legends: Z-A.

Powers

Its Abilities are Anticipation and Dry Skin, with Poison Touch hidden. It dirty-fights with Taunt, Sucker Punch and Low Kick, jabs with Poison Jab and boosts itself with Nasty Plot. Base Attack and Special Attack are both 61.

Name origin

Croagunk may combine 'croak' and 'gunk'. The Japanese name Gureggru (グレッグル) may combine gureru ('to turn delinquent') with gerogero, a frog's croak or an exclamation of disgust.

Design inspiration

Bulbapedia credits Takao Unno as the designer. It may be based on a poison dart frog, and the white bands around its middle resemble sarashi, chest wraps, with the higher placement on females matching styles worn by women. These are fan readings.

Evolution notes

It evolves into Toxicroak at level 37.

In the games

In Platinum, Looker appears with one briefly, and in Pastoria City it is the town mascot. In Mystery Dungeon: Explorers of Time and Darkness a Croagunk in Wigglytuff's Guild runs the Swap Cauldron and says 'Meh-heh-heh'. Croagunk's first games were Diamond and Pearl.

In the anime

Brock caught one in 'Gymbaliar!'. It took over the job of dragging him away from attractive women, using Poison Jab each time he falls in love. 'Cream of the Croagunk Crop!' centres on a Croagunk festival in Pastoria City.

Fun facts

• Its English name was revealed on 13 February 2007, and a blurry image led some fans to read it as 'Croalurk'.
• In Platinum, stand behind the Croagunk Wall in Pastoria and a wild Croagunk may stroll past and walk off to the Great Marsh.
• Bulbapedia notes that Croagunk is the sole fighter in Pokkén Tournament DX who can also be picked as a Support Pokémon.
• Its Diamond, Pearl and Platinum sprites show pink cheeks, while its 3D models and artwork show yellow-orange.

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

Base stats

• HP: 48
• Attack: 61
• Defense: 40
• Sp. Atk: 61
• Sp. Def: 40
• Speed: 50

Croagunk’s base stat total is 300. Its highest stat is Attack and Sp. Atk.

Type matchups

What is Croagunk weak to?

Croagunk takes extra damage from Psychic (4×), Ground (2×), Flying (2×) moves.

It resists Bug (¼×), Grass (½×), Fighting (½×), Poison (½×), Rock (½×), Dark (½×).

Evolution

How does Croagunk evolve?

Croagunk evolves into Toxicroak at level 37.

The whole family: Croagunk, Toxicroak.

Abilities

• Anticipation: Notifies all trainers upon entering battle if an opponent has a super-effective move, Self-Destruct, Explosion, or a one-hit KO move.
• Dry Skin: Causes 1/8 max HP in damage each turn during strong sunlight, but heals for 1/8 max HP during rain. Increases damage from Fire moves to 1.25×, but absorbs Water moves, healing for 1/4 max HP.
• Poison Touch (hidden ability): Has a 30% chance of poisoning target Pokémon upon contact.

Moves

Moves Croagunk learns by level up in Scarlet / Violet

TM moves (56)

Croagunk can learn 56 moves from TMs in Scarlet / Violet: Take Down, Mud-Slap, Scary Face, Protect, Low Kick, Acid Spray, Thief, Chilling Water, Facade, Aerial Ace, Bulldoze, Icy Wind, Mud Shot, Rock Tomb, Low Sweep, Fling, Venoshock, Endure, Sunny Day, Rain Dance, Dig, Brick Break, Shadow Claw, Foul Play, Bulk Up, Thunder Punch, Ice Punch, Sleep Talk, Drain Punch, Poison Jab, Rest, Rock Slide, Taunt, Gunk Shot, Substitute, X-Scissor, Shadow Ball, Encore, Helping Hand, Baton Pass, Reversal, Nasty Plot, Sludge Bomb, Earthquake, Focus Blast, Tera Blast, Toxic, Spite, Knock Off, Super Fang, Vacuum Wave, Focus Punch, Lash Out, Coaching, Sludge Wave, Upper Hand.

Egg moves (9):Bullet Punch, Counter, Cross Chop, Dynamic Punch, Fake Out, Feint, Headbutt, Quick Guard, Vacuum Wave.

Breeding & training

• Gender: 50% male, 50% female.
• Egg groups: Human-Like.
• Egg cycles: 10 (steps to hatch, Scarlet/Violet: 1,280).
• Catch rate: 140 out of 255.
• Base friendship (Gen 8 onward): 100.
• Growth rate: Medium (1,000,000 experience points to reach level 100).
• Defeating it gives 1 Attack effort value.
• Base experience yield: 60.

Pokédex entries

A poison wielder with a dastardly personality. Despite such qualities, this species is afforded a measure of popularity due to its peculiar cry and comical features. (Legends: Arceus)

Once diluted, its poison becomes medicinal. This Pokémon came into popularity after a pharmaceutical company chose it as a mascot. (Shield)

It makes frightening noises with its poison-filled cheek sacs. When opponents flinch, Croagunk hits them with a poison jab. (Sword)

Inflating its poison sacs, it fills the area with an odd sound and hits flinching opponents with a poison jab. (Black 2, White 2, Y, Alpha Sapphire)

Its cheeks hold poison sacs. It tries to catch foes off guard to jab them with toxic fingers. (Diamond, X, Omega Ruby)

It rarely fights fairly, but that is strictly to ensure survival. It is popular as a mascot. (Platinum, Black, White)

Names around the world

Trivia

• Shortest Fighting type in Gen 4: 0.7 m, shared with 1 other.
• Slowest Fighting type in Gen 4: 50 Speed.
• Slowest Poison type in Gen 4: 50 Speed.
• Taller than 34% of all Pokémon (0.7 m).
• Heavier than 45% of all Pokémon (23 kg).
• Base stat total 300, ranked #856 of 1,025.
• One of 4 Pokémon that are both Poison and Fighting.
• One of 170 blue Pokémon.
• Number 67 of 107 Pokémon introduced in Generation 4 (Sinnoh).
• Part of an evolution family of 2 Pokémon.
• Can learn 70 different moves in Scarlet / Violet.
• Catch rate 140: about 18.3% per Poké Ball at full health.
• Appears in 8 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: Croagunk (Pokémon), Serebii: Croagunk (Scarlet/Violet Pokédex).
• Pronunciation (KROH-gunk): 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

Poison-type Pokémon · Fighting-type Pokémon · Poison/Fighting weaknesses and matchups · Sinnoh region guide · Anticipation ability · Dry Skin ability · Poison Touch ability · Compare Croagunk · Full Pokédex · Type chart · All moves

Browse similar Pokémon

Gen 4 Poison-type Pokémon · Gen 4 Fighting-type Pokémon · Gen 4 Pokémon list · Blue Pokémon list · Human-Like egg group · Pokémon that start with C · Frog Pokémon

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