|Aqua Mouse Pokémon|
|#183|| Thick Fat/Huge Power|
|1'4" (0.4m)||18.7 lbs. (8.5kg)|
|Male: 50%||Female: 50%|
|Evolves From||Evolves Into|
|Egg Group||Catch Rate|
Marill can have one of two abilities: Thick Fat, an Ability that reduces the damage taken from Fire and Ice Type Attacks by 50%; or Huge Power, an Ability that doubles the power of all of its Attacks. However, the effect of Huge Power is reduced by half if the Ability gets changed by way of Skill Swap. Marill from the Dream World use the Sap Sipper Ability. This ability increases its Attack by one stage should it take a hit from a Grass-Type move, and it won't take any damage from that move either. Additionally, due to Marill being a Water Type, this Ability also nullifies its Grass Type weakness.
Azurill can evolve into a Marill when it has a high Happiness Value and Levels Up, but this only applies from Generation III onward. It can evolve into Azumarill once Marill reaches Level 18, or the first Level Up after evolving Marill should Azurill evolve at Level 18 or higher, where applicable.
Marill is in the Egg Groups Water 1 and Fairy, and its Egg takes approximately 2,560 Steps to hatch regardless if the Pokémon was bred to hatch a Marill or Azurill. It takes Marill 800,000 Experience Points to reach Level 100.
Marill resembles a small blue rodent with a ball on its tail.
 Gender Differences
Marill doesn't have any differences to differentiate between male and female. It is worth noting that its pre-evolved form Azurill is a rare case of a pre-evolved Pokémon having a different Gender Ratio than its evolved forms; Azurill's Gender Ratio is Male 25%-Female 75% whereas both of its evolved forms are 50-50.
 Game Information
 Original Games
Marill can be found at Mt. Mortar in Gold, Silver, and Crystal, but becomes easier to find when Hiker Perry (a trainer on Route 45) calls and gives you the information relating to its location. Marill also appears on Route 42 in Crystal.
Marill appears on land on Routes 117 & 120, and when using Surf on Routes 102, 11, 114, 117, 120 & Petlburg City in Ruby, Sapphire, and Emerald. Marill appears in Leaf Green at Four Island and the Entrance of Icefall Cave when using Surf, and Ruin Valley on both land and using Surf.
Marill appears at the Great Marsh on both land and using Surf in Diamond and Pearl, and as a Daily Pokémon in the Trophy Garden in Diamond, Pearl, and Platinum. Marill also appears at the North end of Route 212 and Route 215 in Platinum.
Marill reprises its Mt. Mortar appearance in Heart Gold and Soul Silver, but it appears more often at Mt. Mortar during a Swarm. Marill also appears at the Safari Zone's Meadow at night, and using Surf at any time of day.
Marill can be found at Routes 6, 11, 20 and 22, along with Abundant Shrine, Floccesy Ranch, Pinwheel Forest, Relic Passage, Victory Road and Village Bridge in Black 2 and White 2. Marill can also be found in a Hidden Grotto at Floccesy Ranch.
 Spin-off Games
Marill makes appearances at Secret Storage 5 & 11, Endless Level 2 and Mr. Who's Den in Pokémon Trozei!.
Marill appears at Wish Cave 4F-6F in the first Mystery Dungeon game. In Explorers of Time, Explorers of Darkness and Explorers of Sky, Marill appears on the first 20 floors of Blizzard Island, Crevice Cave B1-B10 & DP B1-B4, and Mt. Avalanche B1-B19. Marill is exclusive to Stormy Adventure Squad in Mystery Dungeon 3, appearing at Storm Island 11F-17F.
Marill appears in Pokémon Ranger: Guardian Signs, its lone appearance in the Pokémon Ranger series. It appears on the East Beach of Dolce Island and is in a hiding spot at the Silver Falls on Sophian Island in the Present; and in the Ice Temple Mission Round and Round! Find the Floor! by defeating it and obtaining its Slate, but you must defeat the Boss of this stage within the time limit in order to retain this Slate.
Marill appears at Sun-Dappled Bank Lake 2-1 in Pokémon Rumble Blast.
 Trading Card Game
Marill appears in eight different sets and the Southern Islands, Wizards, and McDonalds Promos. Marill is listed as a Common Card in the Neo Genesis, Expedition, EX Sandstorm, EX Team Rocket Returns, EX Delta Species, Diamond and Pearl, Heart Gold and Soul Silver, and Boundaries Crossed sets. Marill's lone listing as an Uncommon Card is in the Aquapolis set.
 Anime/Manga Information
Tracey used his Marill in multiple episodes throughout Ash's journeys through the Orange Islands. Marill's debut was the episode The Crystal Onix, in which Marill helped the gang to track down an Onix that was made of Crystal. Many other trainers have used a Marill, including Lola (Brock's mother) and Lyra, a female trainer based off the female protagonist in Heart Gold and Soul Silver.
Tracey's Marill appears in the second Pikachu Short Pikachu's Rescue Adventure and The Power of One. Wild Marill have been featured in Pikachu's Vacation, Pikachu's Exploration Club, Pikachu's Great Ice Adventure, and Pikachu's Great Sparking Search, along with the films Pokémon Ranger and the Temple of the Sea, The Rise of Darkrai, and Zoroark: Master of Illusions.
Marill's Manga info is unknown at this time.
 Pokémon Information
 Competitive Battling
Marill is listed in the NFE, or Not Fully Evolved Tier of Competitive Battling as it is a Pokémon that hasn't reached its final stage of evolution.
 Area Location
Mt. Mortar (walking at night and surfing)
Route 42 at night
|Route 117 and 120 (grass)|
Route 102, 111, 114, 117 and 120, Petalburg City (surfing)
Ruin Valley (grass)
Ruin Valley (surfing)
|Trophy Garden (Special Pokemon)|
Great Marsh (grass)
Great Marsh (surfing)
Routes 212 and 215
Mt. Mortar (Swarm)
Safari Zone: Meadow
|Black 2/White 2||5%
|Route 6 (regular and dark grass)|
Route 11, 22 and Abundant Shrine (regular and dark grass)
Route 20 and Floccesy Ranch (surfing in rippling water)
Route 6, 22, Village Bridge, Abundant Shrine, Victory Road, Pinwheel Forest
and Relic Passage (surfing)
Village Bridge (regular and dark grass)
Floccesy Ranch (Hidden Grotto)
|X/Y||Unknown||Route 3 (surfing)|
 Pokédex Entries
|II||Pokémon Gold||The tip of its tail, which contains oil that is lighter than water, lets it swim without drowning.|
|II||Pokémon Silver||The end of its tail serves as a buoy that keeps it from drowning, even in a vicious current.|
|II||Pokémon Crystal||The fur on its body naturally repels water. It can stay dry, even when it plays in the water.|
|III||Pokémon Ruby||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.|
|III||Pokémon Sapphire||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.|
|III||Pokémon Emerald||Its body is covered with water-repellent fur. Because of the fur, it can swim through water at high speed without being slowed by the water's resistance.|
|III||Pokémon FireRed||The end of its tail serves as a buoy that keeps it from drowning, even in a vicious current.|
|III||Pokémon LeafGreen||The end of its tail serves as a buoy that keeps it from drowning, even in a vicious current.|
|IV||Pokémon Diamond||Using its tail as a float, it dives underwater. It likes eating plants that grow on river bottoms.|
|IV||Pokémon Pearl||The tip of its tail is filled with oil that is lighter than water, so it acts as a float.|
|IV||Pokémon Platinum||The oil-filled end of its tail floats on water. It keeps Marill from drowning even in a strong current.|
|IV||Pokémon HeartGold||The tip of its tail, which contains oil that is lighter than water, lets it swim without drowning.|
|IV||Pokémon SoulSilver||The end of its tail serves as a buoy that keeps it from drowning, even in a vicious current.|
|V||Pokémon Black||The oil-filled end of its tail floats on water. It keeps Marill from drowning even in a strong current.|
|V||Pokémon White||The oil-filled end of its tail floats on water. It keeps Marill from drowning even in a strong current.|
|V||Pokémon Black 2||The oil-filled tail functions as a buoy, so it's fine even in rivers with strong currents.|
|V||Pokémon White 2||The oil-filled tail functions as a buoy, so it's fine even in rivers with strong currents.|
|VI||Pokémon X||The fur on its body naturally repels water. It can stay dry, even when it plays in the water.|
|VI||Pokémon Y||The tip of its tail is filled with oil that is lighter than water, so it acts as a float.|
 Pokéthlon Statistics
 Via Level-Up
 Black 2/White 2
 Via TM/HM
 Via Breeding
 Via Dream World
 Via Move Tutor (Black 2/White 2)
 Via Level Up
 Black 2/White 2
 Via Breeding
 Via Move Tutor (Black 2/White 2)
 Generation III Exclusive Move Tutor Moves
 Generation IV Exclusive Moves
 Via TM/HM
- TM01: Focus Punch
- TM03: Water Pulse
- TM43: Secret Power
- TM58: Endure
- TM78: Captivate
- TM83: Natural Gift
- HM05: Whirlpool (Heart Gold/Soul Silver Only)
 Via Move Tutor
 Heart Gold/Soul Silver
 Evolution Line
 Type Matchups
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