Utility
Balanced
305Low
45Very Slow
DTier

While most trainers evolve Mareanie into Toxapex immediately, the unevolved form has a niche with Eviolite boosting its defenses. Only weak to Electric, Ground, and Psychic. Known as the Brutal Star Pokemon. Can go either physical or special depending on the set.

Mareanie's stats barely vary. 0 sit in respectable range with no real gaps. It's a blank slate for EV investment. Worth 1 Defense EV, medium-fast 1M XP curve to max.

Base Stats
305Avg
HP50
D
Attack53
D
Defense62
C
Sp. Atk43
D
Sp. Def52
D
Speed45
D
Total305
Low <60
Avg 60-89
High 90-149
Top 150+
EV YieldDefeating Mareanie yields +1 Def
HPAtkDef+1SpASpDSpe
Details
Catch190EasyMedium Fast1M XP0.4m / 1'04"8kg / 17.6 lbs61Base XP
Pokedex Entries

It plunges the poison spike on its head into its prey. When the prey has weakened, Mareanie deals the finishing blow with its 10 tentacles.

Sun

It’s found crawling on beaches and seafloors. The coral that grows on Corsola’s head is as good as a five-star banquet to this Pokémon.

Moon

Mareanie Weakness

Good

Mareanie's Poison/Water typing leaves it vulnerable to Electric, Ground, and Psychic moves. 8 resistances give it solid defensive coverage on top of that.

4xCriticali
None
¼xResisti
None
0xImmunei
None
3Weak
8Resist
0Immune
Scorei+2
SpikesGrounded — up to 25%
Toxic SpikesAbsorbs on switch
Abilities
MercilessThis Pokémon's moves critical hit against poisoned targets.
LimberPrevents paralysis.
RegeneratorHAHeals for 1/3 max HP upon switching out.

Mareanie evolves into Toxapex. It's a two-stage chain with the method shown below. No compatible partners for breeding via one egg group. Eggs are average hatch time. The evolved forms gain up to 190 total stats over Mareanie.

How to Evolve

2 Forms
Stat Comparison 2 Stages
Mareanie
PoisonWater
Toxapex
PoisonWater
HP
50
50
ATK
53
63+10
DEF
62
152+90
SP.ATK
43
53+10
SP.DEF
52
142+90
SPE
45
35-10
BST
305B-Tier
495B-Tier+190
ROLE
Balanced
Balanced
TYPE
Utility
Utility
Breeding
Very Easy

Breed Mareanie easily from the Water1 egg group. Pass egg moves like Haze, Spit Up, Stockpile and 1 more to offspring.

Egg Groups
Water1
Gender
50.0%50.0%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body
Egg Moves
4moves

Best Build

No build content available for this Pokemon in Gen 7.

Try selecting a different game/generation filter, or check back later.

You'll want to breed for Haze and Spit Up on Mareanie. These egg moves aren't just nice to have. Combined with STAB from Sludge Wave and Sludge Bomb, they expand what Mareanie can actually threaten in practice.

Level-Up Moves

Lv 1
Poison Sting
1510035Poison
Lv 5
Peck
3510035Flying
Lv 9
Bite
6010025Dark
Lv 13
Toxic Spikes
20Poison
Lv 17
Wide Guard+3
10Rock
Lv 21
Toxic
9010Poison
Lv 25
Venoshock
6510010Poison
Lv 29
Spike Cannon
2010015Normal
Lv 33
Recover
10Normal
Lv 37
Poison Jab
8010020Poison
Lv 41
Venom Drench
10020Poison
Lv 45
Pin Missile
259520Bug
Lv 49
Liquidation
8510010Water

TM Moves

Src
TM45
Attract
10015Normal
TM14
Blizzard
110705Ice
TM100
Confide
20Normal
TM32
Double Team
15Normal
TM42
Facade
7010020Normal
TM79
Frost Breath
609010Ice
TM21
Frustration
10020Normal
TM07
Hail
10Ice
TM10
Hidden Power
6010015Normal
TM13
Ice Beam
9010010Ice
TM83
Infestation
2010020Bug
TM66
Payback
5010010Dark
TM84
Poison Jab
8010020Poison
TM17
Protect+4
10Normal
TM18
Rain Dance
5Water
TM44
Rest
10Psychic
TM27
Return
10020Normal
TM48
Round
6010015Normal
TM20
Safeguard
25Normal
TM55
Scald
8010015Water
TM88
Sleep Talk
10Normal
TM36
Sludge Bomb
9010010Poison
TM34
Sludge Wave
9510010Poison
TM90
Substitute
10Normal
TM94
Surf
9010015Water
TM87
Swagger
8515Normal
TM06
Toxic
9010Poison
TM09
Venoshock
6510010Poison

Egg Moves

Src
Egg
Haze
30Ice
Egg
Spit Up
10010Normal
Egg
Stockpile
20Normal
Egg
Swallow
10Normal

Tutor Moves

Mareanie can't learn any Tutor moves

moderate rates across 6 locations for Mareanie in early-game fishing spots. Scroll the sorted list below and pick whichever spot sits closest to your current route. The rate differences between locations are worth comparing.

Best Locations

Bring Super Rod for Mareanie. There are 6 fishing encounters from Lv. 10-23 with no walking alternatives. Pick the spot with the best rate and settle in.

Melemele Sea
MoonSuper RodLv.10-18EarlyWaterSOS from Corsola
Melemele Sea
MoonSuper RodLv.10-18EarlyWaterSOS from Corsola
Melemele Sea
SunSuper RodLv.10-18EarlyWaterSOS from Corsola
Melemele Sea
SunSuper RodLv.10-18EarlyWaterSOS from Corsola
Route 9
SunSuper RodLv.10-23EarlyRouteSOS from Corsola
Route 9
MoonSuper RodLv.10-23EarlyRouteSOS from Corsola
  • Mareanie isn't fully evolved, so it's not built for competitive play. You'll want to evolve it into Toxapex to unlock its full potential. At 305 BST, it's a stepping stone rather than a team anchor.

  • Watch for Rotom (Electric), Excadrill (Ground), and Reuniclus (Psychic) when using Mareanie. They all hit it super-effectively with STAB.

  • Mareanie evolves into Toxapex at level 38. Mareanie is the base form of this evolutionary line.

  • Run Regenerator on Mareanie. It's the ability that defines how you build around it and the main reason it holds a competitive niche. Mareanie also gets Merciless and Limber, but they don't compare.

  • Mareanie fills the balanced role. It's leaning toward the physical side (base 53 Attack). Base 45 Speed is low. Priority moves or Trick Room are the way to go. And it's fragile — can't afford to take many hits.

  • Mareanie can be found in Scarlet & Violet, Sword & Shield, Sun & Moon, and Ultra Sun & Ultra Moon.

Introduced in Sun & Moon, Mareanie has appeared in 4 games across 3 generations. Later debuts mean fewer total appearances, but it's been a consistent presence since its introduction.