Pokemon Scarlet and Violet (SV)

Blastoise Movesets and Best Builds

This is a guide to movesets and best builds for using Blastoise in competitive play for the games Pokemon Scarlet and Violet (SV). Read on for tips on the best Nature, EV spreads, Movesets, Tera Type, and Held Items to use with Blastoise, as well as its strengths and weaknesses.

Blastoise - Related Guides
Pokemon SV - Blastoise Evolution and LearnsetEvolution and Learnset Pokemon SV - Blastoise MovesetMoveset for Ranked Battle Pokemon Scarlet and Violet (SV) - Blastoise Tera Raid Builds IconTera Raid Build

Blastoise Base Stats, Type, Ability and Weakness

Blueberry #172 Type
Blastoise ImageBlastoise
Pokemon Scarlet and Violet SV - Water Icon
Abilities
Torrent
Rain Dish (Hidden)
Weak to:
(2x)
Pokemon Grass Type Icon Pokemon Electric Type Icon
Damaged Normally
By:
(1x)
Pokemon Normal Type Icon Pokemon Fighting Type Icon Pokemon Poison Type Icon Pokemon Ground Type Icon Pokemon Flying Type Icon Pokemon Psychic Type Icon Pokemon Bug Type Icon Pokemon Rock Type Icon Pokemon Ghost Type Icon Pokemon Dragon Type Icon Pokemon Dark Type Icon Pokemon Fairy Type Icon
Resists: (0.5x)
Pokemon Fire Type Icon Pokemon Water Type Icon Pokemon Ice Type Icon Pokemon Steel Type Icon

What is Type Effectiveness?

Ability Name Description
Torrent Increases the damage of Water-type moves by 50% when the user's HP is below 1/3 its max.
Rain Dish
(Hidden)
The user recovers 6.25% HP during Heavy Rain at the end of each turn.

Base Stats

Base Stats
Lv. 50 Stats
Stat Value Rank
HP
79
297
Atk
83
358
Def
100
119
SpAtk
85
258
SpDef
105
96
Speed
78
338
Total
530
169
Explanation of Pokemon Stats
Stat Max 0Nat 0EV -Nat Min
HP 186 186 154 154 139
Atk 148 135 103 92 79
Def 167 152 120 108 94
SpAtk 150 137 105 94 81
SpDef 172 157 125 112 99
Spd 143 130 98 88 74
  • Max: Max IVs & EVs and a stat-boosting Nature
  • 0Nat: Max IVs & EVs and a neutral Nature
  • 0EV: Max IVs, 0 EVs, and a neutral Nature
  • -Nat: Max IVs, 0 EVs, and a stat-reducing Nature
  • Min: 0 IVs & EVs, and a stat-reducing Nature
Introduction to EVs, IVs, and Natures

Best Nature for Blastoise

Best Natures
Modest
(+Sp. Atk, -Atk)
Timid
(+Spe, -Atk)

What are Natures?

Singles Movesets for Blastoise

Build Name Recommendation
Shell Smash ★★★

Shell Smash Moveset & Best Build

Nature Modest (+Sp. Atk, -Atk)
EV Spread Def 4 / Sp. Atk 252 / Spe 252
Final Stat Values HP 154 / Def 121 / Sp. Atk 150 / Sp. Def 125 / Spe 130
Ability Torrent
Tera Type Pokemon Steel Type Icon
Held Item White Herb
Moveset Hydro Pump
Ice Beam
Flash Cannon
Shell Smash

Summary

Pokeball Icon Has naturally high Defense and Special Defense.

Pokeball Icon Water and Steel are both strong defensive typings.

Pokeball Icon Has multiple strong coverage moves.

Ability and Held Item

Pokemon Scarlet and Violet SV - Blastoise Image
Ability Held Item
Torrent Pokemon Scarlet and Violet SV - White Herb ImageWhite Herb

The Ability chosen for this build is Torrent. This will boost the damage of Blastoise's Water-type attacks while it is at low health.

The item chosen for this build is a White Herb. This resets Blastoise's defense drops after it uses Shell Smash.

Moves Breakdown

Hydro Pump Ice Beam
Flash Cannon Shell Smash

Hydro Pump is its best Water-type STAB move, but it only has 80% accuracy.

Ice Beam is its main coverage move that will help it deal with Grass-types.

Flash Cannon is its other coverage move that has its damage boosted once it Terastallizes into Steel.

Shell Smash will boost Blastoise' Sp. Atk and Speed by two stages. It doesn't have to worry about the defensive stat drops because White Herb will reset them back to zero.

Best Tera Type: Steel

Steel Tera Type Matchup
Weak to:
(2x)
Pokemon Fire Type Icon Pokemon Fighting Type Icon Pokemon Ground Type Icon
Damaged Normally
By:
(1x)
Pokemon Water Type Icon Pokemon Electric Type Icon Pokemon Ghost Type Icon Pokemon Dark Type Icon
Resists: (0.5x)
Pokemon Normal Type Icon Pokemon Grass Type Icon Pokemon Ice Type Icon Pokemon Flying Type Icon Pokemon Psychic Type Icon Pokemon Bug Type Icon Pokemon Rock Type Icon Pokemon Dragon Type Icon Pokemon Steel Type Icon Pokemon Fairy Type Icon
Immune to: (0x)
Pokemon Poison Type Icon

Steel is the best Tera Type for this build because it is the best defensive type in the game. It will also boost the damage of Blastoise's Flash Cannon.

Alternatively, it could use a Water Tera Type since it is a strong defensive type that further boosts the damage of Blastoise's Water-type STAB moves.

Best Water (Tera) Type Pokemon for Ranked Battle

EV Spread and Nature

A full 252 EVs are placed in Blastoise' Sp. Atk and Speed to make it hit as hard and fast as possible. The extra 4 EVs are put into its Def to help round out its bulk.

A Modest nature is preferred to maximize Blastoise's damage output. A Timid nature isn't fast enough to outspeed a Speed Booster Flutter Mane, but Modest still leaves it fast enough to outspeed fast Choice Scarf Pokemon like Landorus Therian.

Other Viable Moves

Surf Does less damage than Hydro Pump, but is 100% accurate compared to Hydro Pump's 80%
Aura Sphere
or
Dark Pulse
Strong coverage options that let Blastoise hit Water-types that would otherwise resist its current moveset.
Aqua Jet A +1 priority move that lets Blastoise knockout low-health opponents.

Key Damage Calculations

Attack Icon Pokemon SVDamage Dealt by Smeargle
Pokemon Scarlet and Violet SV - Ogerpon (Hearthflame Mask) Image 80 HP|96 Sp. Def
Defensive EV Investment:
4 HP (Jolly)
Item: Hearthflame Mask
+2 Hydro Pump
160 ~ 190 (102.5 ~ 121.7%)
Guaranteed OHKO
Pokemon Scarlet and Violet SV - Dragonite Image 91 HP|100 Sp. Def
Defensive EV Investment:
252 HP (Adamant)
Ability: Multiscale
Item: Choice Band
+2 Ice Beam
170 ~ 202 (85.8 ~ 102%)
12.5% Chance to OHKO
Pokemon Scarlet and Violet SV - Flutter Mane Image 55 HP|135 Sp. Def
Defensive EV Investment:
4 Sp. Def (Timid)
Item: Booster Energy
+2 Flash Cannon
116 ~ 138 (89.2 ~ 106.1%)
37.5% Chance to OHKO

Game8's Competitive Damage Calculator

How to Use Blastoise Effectively

Only Shell Smash When It's Safe

While Blastoise has naturally good Defense and Special Defense, it is still susceptible to getting OHKO'd because of its EV spread. Only use Shell Smash when it is safe to do so, otherwise, Blastoise might get knocked out for free.

How to Build a Team with Blastoise

Blastoise appreciates teammates who can help it safely set up boosts and sweep the enemy team.

Sample Singles Team

Screens Lead Special Attacker Physical Attacker
Alolan Ninetales ImageAlolan Ninetales Blastoise ImageBlastoise Dragonite ImageDragonite

Alolan Ninetales can setup screens to make it safer for Blastoise to setup Shell Smash boosts. If Blastoise is knocked out, Dragonite can come in to finish off any survivors with Tera Normal Choice Band boosted Extreme Speeds.

Counters for Blastoise

Outspeed and KO Blastoise

Blastoise's mediocre speed stat makes it easy for faster threats to outspeed. Quickly knocking it out will stop Blastoise from being effective.

Best Pokemon to Use

Pokemon Description
Ogerpon (Hearthflame Mask) ImageOgerpon (Hearthflame Mask) Ranking: ★★★★★
・Both STABs cover for regular and Tera typings.
・One Trailblaze boost is enough to outspeed a Modest Blastoise after one Shell Smash.
▶️ Hearthflame Ogerpon Best Movesets
Rillaboom ImageRillaboom Ranking: ★★★★
・Needs to defensively Terastallize to survive a Life Orb-boosted Grassy Glide.
・High Horsepower has a high chance to OHKO if Blastoise becomes Tera Steel.
▶️ Rillaboom Best Movesets
Chien-Pao ImageChien-Pao Ranking: ★★★★
・Priority Sucker Punch will still let it outspeed Blastoise.
・Generally runs a Focus Sash to survive one hit.
▶️ Chien-Pao Best Movesets

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Pokemon Scarlet and Violet SV - Movesets.png

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Ranked Battle Regulation E: Rules and Banned Pokemon

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