Mid-stage Pokemon like Marill rarely see competitive play outside of special formats. It's a waypoint on the road to Azumarill, which is where the real potential kicks in. Dragon moves can't touch it, and only 3 types hit it super-effectively. Known as the Aqua Mouse Pokemon.
Marill's spread isn't flashy. HP leads, Attack trails, 0 stats clear the bar. Common in the wild and worth 2 HP EVs, on a fast 800K XP curve.
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.
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.
Marill Weakness
GoodMarill's Water/Fairy typing leaves it vulnerable to Electric, Grass, and Poison moves. It shrugs off Dragon-type attacks completely. 6 resistances give it solid defensive coverage on top of that. Thick Fat reduces Fire/Ice damage, further improving the defensive spread.
Marill is the middle stage between Azurill and Azumarill. It's a three-stage line with one more evolution to go. For breeding, quick to hatch with no compatible partners via two egg groups. So far, HP got the biggest boost (+20 from Azurill). The final form adds another 170 stats on top.
How to Evolve
Breed with Marill to get Azurill eggs easily from the Fairy and Water1 egg groups. Notable egg moves include Amnesia, Aqua Jet, Belly Drum and 17 more.
Best Build
No build content available for this Pokemon in Gen 6.
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Breadth over depth defines this movepool. Marill won't stack one type's damage ceiling, but coverage across 10 types means it always has an effective option. Hydro Pump and Aqua Tail anchor the STAB core.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
Reminder Moves
Transfer Moves
Grab Marill from the locations below, it shows up in the wild. Drop it at the nursery to hatch Azurill. From there, level the baby through the remaining stages to Marill.
Where To Catch Marill in Omega Ruby & Alpha Sapphire
Azurill is your first catch on the way to Marill. You'll find surfing and walking encounters from Lv. 7-20 across 20 total spots in the chain.
Step 1Breed Azurill from MarillBreed from Marill at the Day Care.
Step 2Marill ✓EFFORTLESSPetalburg CityAlpha SapphireSurfing on waterLv.1560%EarlyCityEFFORTLESSPetalburg CityOmega RubySurfing on waterLv.1560%EarlyCityEFFORTLESSRoute 102Alpha SapphireSurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 102Omega RubySurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 111 - SouthAlpha SapphireSurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 111 - SouthOmega RubySurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 114Alpha SapphireSurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 114Omega RubySurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 117Alpha SapphireSurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 117Omega RubySurfing on waterLv.1560%EarlyRouteEFFORTLESSRoute 120 - EastAlpha SapphireGrassLv.1335%EarlyRouteHorde battleEFFORTLESSRoute 120 - EastOmega RubyGrassLv.1335%EarlyRouteHorde battleEFFORTLESSRoute 120 - WestAlpha SapphireGrassLv.1335%EarlyRouteHorde battleEFFORTLESSRoute 120 - WestOmega RubyGrassLv.1335%EarlyRouteHorde battleMODERATERoute 117Alpha SapphireGrassLv.11-138%EarlyRouteMODERATERoute 117Omega RubyGrassLv.11-138%EarlyRouteCHALLENGINGRoute 117Alpha SapphireGrassLv.75%EarlyRouteHorde battleCHALLENGINGRoute 117Omega RubyGrassLv.75%EarlyRouteHorde battleEFFORTLESSRoute 123Alpha SapphireSurfing on waterLv.2060%MidRouteEFFORTLESSRoute 123Omega RubySurfing on waterLv.2060%MidRouteor evolve from Azurill (Step 1)
Marill isn't fully evolved, so it's not built for competitive play. You'll want to evolve it into Azumarill to unlock its full potential. At 250 BST, it's a stepping stone rather than a team anchor.
Run Huge Power on Marill. It's the ability that defines how you build around it and the main reason it holds a competitive niche. Marill also gets Thick Fat and Sap Sipper, but they don't compare.
Marill fills the balanced role. It's a special attacker with base 20 Sp. Atk. Base 40 Speed is low. Priority moves or Trick Room are the way to go.
Marill appears in 17 games, including Gold & Silver, Crystal, and Ruby & Sapphire.
Marill first appeared in Gold & Silver and has been available in 17 games across 8 generations. Obtainable through catching or hatching as a base form in most titles where it appears.
- Gen IY
Yellow - Gen IRB

Red & Blue - Gen IIGSDebut

Gold & Silver - Gen IIC
Crystal - Gen IIIRS

Ruby & Sapphire - Gen IIIFRLG

FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS

HeartGold & SoulSilver - Gen IVDP

Diamond & Pearl - Gen VBW

Black & White - Gen VB2W2

Black 2 & White 2 - Gen VIXY

X & Y - Gen VIORAS

Omega Ruby & Alpha Sapphire - Gen VIIUSUM

Ultra Sun & Ultra Moon - Gen VIISM

Sun & Moon - Gen VIILGPE

Let's Go Pikachu & Eevee - Gen VIIISwSh

Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP

Brilliant Diamond & Shining Pearl - Gen IXSV

Scarlet & Violet - Gen IXLZA
Legends: Z-A