Rillaboom - Moveset & Best Build for Ranked Battle | Pokemon Sword and Shield

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Rillaboom.png

This is a strategy guide for using Rillaboom in competitive play for the games Pokemon Sword and Shield. Read on for tips on the best Nature, EV spreads, Movesets, Builds, and Held Items to use with Rillaboom, as well as its strengths and weak points.

Rillaboom - Related Articles
Pokeball Icon.pngEvolution and Learnset VS Battle Icon.pngBuild for Ranked Battle

Basic Information for Rillaboom

Types and Abilities

Pokemon Type 1 Type 2
Grass Type
Abilities
Overgrow Powers up Grass-type moves in a pinch.
Grassy Surge (Hidden) The Pokemon creates a Grassy Terrain when it enters a battle.

Base Stats

HP Attack Defense Sp. Atk Sp. Def Speed
100 125 90 60 70 85

Best Nature for Rillaboom

Best Natures
Jolly
(+Spd, -SpAtk)
Adamant[nl(+Atk, -SpAtk)

What are Natures?

How to Learn Rillaboom's Egg Moves

Hammer Arm Inherit from Rhydon (Learnable on evolution) or Stufful(learns at Lv. 32)

Moveset & Best Build for Rillaboom

Choice Item Moveset & Best Build

Nature Jolly
EV Spread Atk. 252 / Spd. 252 / HP 4
Final Stat Values HP 176 / Atk. 177 / Def. 110 / Sp.Def. 90 / Spd. 150
Ability Overgrow
Held Item Choice Scarf / Choice Band
Moveset U-turn
Drum Beating
Knock Off
Superpower

This set focuses on taking advantage of Rillaboom's high Defense and Speed, while escaping from difficult matchups with U-turn. Even if the opponents outspeeds Rillaboom, it can use Drum Beating to decrease its opponent's Speed and gain the upper hand.

Other Viable Moves

Wood Hammer An alternate choice for Drum Beating for when you want to prioritize damage above all else.
Earthquake For when you want to vary its potential to attack with different types. However, be warned that Max Overgrowth will set up Grassy Terrain, which halves its power.
High Horsepower An alternate Ground move for when you want to Dynamax Rillaboom. Its power doesn't decrease with Grassy Terrain, making it more effective than Earthquake in this context.

Assault Vest Moveset & Best Build

Nature Adamant (+Atk, -SpAtk)
EV Spread Atk. 252 / Spd. 252 / HP 4
Final Stat Values HP 175 / Atk. 194 / Def. 110 / Sp.Def. 90 / Spd. 137
Ability Overgrow
Held Item Assault Vest
Moveset Drum Beating
U-turn
Hammer Arm
Knock Off

This build allows Rillaboom to survive Fire Blast, frequently learned by Dragapult and Hydreigon, and after getting one Drum Beating up, it can outspeed to use a super effective move and aim for a 1HKO.

Other Viable Moves

Earthquake A high-power attack with reliable accuracy. However, be warned that Max Overgrowth will set up Grassy Terrain, which halves its power.
High Horsepower An alternate Ground move for when you want to Dynamax Rillaboom. Its power doesn't decrease with Grassy Terrain, making it more effective than Earthquake in this context.
Superpower An alternate choice for Hammer Arm for when you want to avoid the Speed drop, and are willing to trade it for an Attack and Defense drop.

How to Use Rillaboom Effectively

An attacker who combines Attack and Defense

Rillaboom is able to hit hard with its high Attack. It also has high Speed, so arming it with a Choice Scarf can allow it to take advantage of this to move faster and defeat many opponents.

Must watch out for its many weaknesses

As a Grass-type Pokemon, Rillaboom is cursed with weaknesses to Fire, Flying and others which are frequently held even by non-STAB opponents. Don't send it up against opponents who it can't handle.

Counters for Rillaboom

Take advantage of its weaknesses

As Rillaboom is a Grass-type Pokemon, a type with several weaknesses, and since it can only learn Moves of a few types, it's easy to exploit these weaknesses with an advantageously-typed Pokemon.

Best Pokemon to Use

Pokemon Description
Heat Rotom ImageHeat Rotom Ranking: ★★★★★
・Can go for a knockout with Overheat
・Can handle almost all of Rillaboom's attacks with its type combination and Levitate
Corviknight ImageCorviknight Ranking: ★★★★☆
・A physical attacker with a great dual-typing of Flying and Steel
・Can take an attack even when switched in on Rillaboom
Best Ranked Battle Build for Corviknight
Gyarados ImageGyarados Ranking: ★★★★☆
・Can deal super effective damage while raising its Speed with Max Airstream
Best Ranked Battle Build for Gyarados

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