Competitive Information for Mareanie [Sun/Moon]
Poison / Water
Abilities:
This Pokemon cannot be paralyzed. Gaining this Ability while paralyzed cures it.
This Pokemon restores 1/3 of its maximum HP, rounded down, when it switches out.
This Pokemon's attacks are critical hits if the target is poisoned.

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Movesets for Singles
Looking for a competitive moveset for Mareanie? These builds are optimized for Sun/Moon Single Battles. The movesets and EVs are designed to maximize damage against common opponents and threats in the Sun/Moon metagame. Check out the expert movesets below to boost your battle performance and dominate your opponents!
Mareanie is here! This superb Pokémon is Poison and Water-typed and ready to shine! Mareanie is not a Pokémon anyone usually expects to see on the battlefield. It often dominates battles in the LC tier (Little Cup). It is weak to Electric, Ground, and Psychic-typed attacks. Discover how Mareanie excels in battles with the movesets provided below.
Item: Waterium Z / Life Orb
Ability: Merciless
Nature: Adamant (+Atk, -SpA)
EVs: 216 Hp / 252 Atk / 40 SpD
Moveset:
- Liquidation
- Poison Jab / Poison Sting
- Return / Facade
- Knock Off / Bite
When it comes to single battles, Mareanie shines as a sensational Physical Sweeper. It's primary goal is to crush rivals using destructive physical moves. Life Orb boosts the power of Mareanie's damaging moves by 1.3x but it then loses 1/10 its max HP immediately after the attack. With Merciless, Mareanie's attacks are critical hits if the target is poisoned. Facade's damage doubles when the user has a status affliction. With a Waterium Z equipped to it, if Mareanie has a water move, this item allows it to use a water z-move.
◆ Poison Jab is a physical STAB-boosted 80-base power Poison-type move (30% chance to poison the target).
◆ Poison Sting is a physical STAB-boosted 15-base power Poison-type move (30% chance to poison the target).
◆ Return is a physical 0-base power Normal-type move (max 102 power at maximum happiness).
◆ Facade is a physical 70-base power Normal-type move (power doubles if Mareanie is burn/poison/paralyzed).
◆ Knock Off is a physical 65-base power Dark-type move (1.5x damage if foe holds an item; Note: This will also remove that item).
◆ Bite is a physical 60-base power Dark-type move (30% chance to make the target flinch).
Link (click to copy):
https://hohoushome.com/b/kaa2eb
Item: Poisonium Z / Life Orb
Ability: Merciless
Nature: Modest (+SpA, -Atk)
EVs: 216 Hp / 252 SpA / 40 SpD
IVs: 0 Atk
Moveset:
- Sludge Wave / Sludge Bomb
- Surf / Scald
- Ice Beam / Frost Breath
- Hidden Power / Round
Dominating single battles, Mareanie is an exquisite Special Sweeper. This build is crafted to take down the opponent's team with potent special moves. Life Orb boosts the power of Mareanie's damaging moves by 1.3x but it then loses 1/10 its max HP immediately after the attack. With Merciless, Mareanie's attacks are critical hits if the target is poisoned. With a Poisonium Z equipped to it, if Mareanie has a poison move, this item allows it to use a poison z-move.
◆ Sludge Bomb is a special STAB-boosted 90-base power Poison-type move (30% chance to poison the target).
◆ Surf is a special STAB-boosted 90-base power Water-type move (hits adjacent pokemon. Double damage on dive).
◆ Scald is a special STAB-boosted 80-base power Water-type move (30% chance to burn the target. Thaws target).
◆ Ice Beam is a special 90-base power Ice-type move (10% chance to freeze the target).
◆ Frost Breath is a special 60-base power Ice-type move (always results in a critical hit).
◆ Hidden Power is a special 60-base power Normal-type move (varies in type based on your Mareanie's ivs).
◆ Round is a special 60-base power Normal-type move (power doubles if others used round this turn).
Link (click to copy):
https://hohoushome.com/b/kba2eb
Movesets for Doubles
Need a strong doubles moveset for Mareanie? These builds are perfect for VGC (Pokémon Video Game Championship) and other competitive Sun/Moon Double Battles. The VGC is the ultimate test of strategy and skill, and these movesets and EVs are designed to excel against multiple opponents at once while providing essential support to your team. Dominate the Sun/Moon metagame with these expert-crafted setups!
Item: Waterium Z / Life Orb
Ability: Merciless
Nature: Adamant (+Atk, -SpA)
EVs: 216 Hp / 252 Atk / 40 SpD
Moveset:
- Liquidation
- Poison Jab / Poison Sting
- Return / Facade
- Knock Off / Bite
In double battles, Mareanie's Physical Sweeper role is an outstanding. The objective of this moveset is to crush rivals using heavy-hitting physical power. Life Orb boosts the power of Mareanie's damaging moves by 1.3x but it then loses 1/10 its max HP immediately after the attack. With Merciless, Mareanie's attacks are critical hits if the target is poisoned. Facade's damage doubles when the user has a status affliction. With a Waterium Z equipped to it, if Mareanie has a water move, this item allows it to use a water z-move.
◆ Poison Jab is a physical STAB-boosted 80-base power Poison-type move (30% chance to poison the target).
◆ Poison Sting is a physical STAB-boosted 15-base power Poison-type move (30% chance to poison the target).
◆ Return is a physical 0-base power Normal-type move (max 102 power at maximum happiness).
◆ Facade is a physical 70-base power Normal-type move (power doubles if Mareanie is burn/poison/paralyzed).
◆ Knock Off is a physical 65-base power Dark-type move (1.5x damage if foe holds an item; Note: This will also remove that item).
◆ Bite is a physical 60-base power Dark-type move (30% chance to make the target flinch).
Link (click to copy):
https://hohoushome.com/b/laa2eb
Item: Poisonium Z / Life Orb
Ability: Merciless
Nature: Modest (+SpA, -Atk)
EVs: 216 Hp / 252 SpA / 40 SpD
IVs: 0 Atk
Moveset:
- Sludge Wave / Sludge Bomb
- Surf / Scald
- Icy Wind / Ice Beam
- Hidden Power / Round
When it comes to double battles, Mareanie shines as a stunning Special Sweeper. This moveset was constructed to crush rivals using powerful special moves. Life Orb boosts the power of Mareanie's damaging moves by 1.3x but it then loses 1/10 its max HP immediately after the attack. With Merciless, Mareanie's attacks are critical hits if the target is poisoned. With a Poisonium Z equipped to it, if Mareanie has a poison move, this item allows it to use a poison z-move.
◆ Sludge Bomb is a special STAB-boosted 90-base power Poison-type move (30% chance to poison the target).
◆ Surf is a special STAB-boosted 90-base power Water-type move (hits adjacent pokemon. Double damage on dive).
◆ Scald is a special STAB-boosted 80-base power Water-type move (30% chance to burn the target. Thaws target).
◆ Icy Wind is a special 55-base power Ice-type move (100% chance to lower the foes speed by 1 stage).
◆ Ice Beam is a special 90-base power Ice-type move (10% chance to freeze the target).
◆ Hidden Power is a special 60-base power Normal-type move (varies in type based on your Mareanie's ivs).
◆ Round is a special 60-base power Normal-type move (power doubles if others used round this turn).
Link (click to copy):
https://hohoushome.com/b/lba2eb
Movepool
Want to know what moves Mareanie can learn? Check out the full list of moves available in the Pokemon Sun/Moon generation.
Sort and organize the learnset by type, category, accuracy, and power. Moves in bold get the same-type attack bonus (STAB) when used by Mareanie.
Damage Modifiers:
Combo List
These are a list of several common move combinations Mareanie can perform in Sun/Moon. Not every combo going to be game-changing, but some can be pretty fun to play with. Sometimes these can be easily overlooked or forgotten, hence why we find and list them here. Discover what items, abilities, and moves this Pokemon can use in combination with each other to gain a strategic advantage in competitive battles.
Competitive SM Move and Ability Combos for Mareanie
- Moves: Rest + Sleep talk
- Moves: Rest + Snore
- Moves: Stockpile + Spit up
- Moves: Stockpile + Swallow
- Moves: Pain split + Toxic
- Move: Swagger + Item: Mirror Herb
- Move: Facade + Item: Flame Orb
- Move: Facade + Item: Toxic Orb
- Moves with Priority: Magic Coat, Protect, Snatch, Wide Guard
- Moves that inflict status: Scald, Toxic
Moves that boost Mareanie's stats
- Iron Defense
- Stockpile
Most notable and possible best moves for Mareanie
- Ice Beam
- Knock Off
- Protect
- Rest
- Scald
- Toxic
Common Effort Values for Mareanie in Sun and Moon
Usage Data
Explore the latest analytical usage data for this Pokémon from various VGC and online competitions. We use this data to develop our strategies and movesets. The data is categorized by competition and skill level: top-ranking trainers, mid-level players, and entry-level players.

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