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Pokemon Scarlet and Violet (SV)
Rillaboom Movesets and Best Builds
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This is a guide to movesets and best builds for using Rillaboom 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 Rillaboom, as well as its strengths and weaknesses.
| Rillaboom - Related Guides | ||
|---|---|---|
 Evolution and Learnset |
 Moveset for Ranked Battle |
 Tera Raid Build |
List of Contents
Rillaboom Base Stats, Type, Ability and Weakness
| Blueberry #229 | Type | |
|---|---|---|
 Rillaboom
|
|
|
| Abilities | ||
|
Overgrow Grassy Surge (Hidden) |
||
| Weak to: | ||
| (2x) | 
|
|
| Damaged Normally By: |
(1x) | 
|
| Resists: | (0.5x) | 
|
| Ability Name | Description | |
|---|---|---|
| Overgrow | Increases the damage of Grass-type moves by 50% when the user's HP is below 1/3 its max. | |
| Grassy Surge (Hidden) |
The user applies Grassy Terrain to the battlefield for five turns when it enters a battle. | |
Base Stats
Base Stats
Lv. 50 Stats
| Stat | Value | Rank |
|---|---|---|
| HP | 100 | 82 |
| Atk | 125 | 59 |
| Def | 90 | 192 |
| SpAtk | 60 | 471 |
| SpDef | 70 | 376 |
| Speed | 85 | 251 |
| Total | 530 | 169 |
| Stat | Max | 0Nat | 0EV | -Nat | Min |
|---|---|---|---|---|---|
| HP | 207 | 207 | 175 | 175 | 160 |
| Atk | 194 | 177 | 145 | 130 | 117 |
| Def | 156 | 142 | 110 | 99 | 85 |
| SpAtk | 123 | 112 | 80 | 72 | 58 |
| SpDef | 134 | 122 | 90 | 81 | 67 |
| Spd | 150 | 137 | 105 | 94 | 81 |
- 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
Best Nature for Rillaboom
| Best Natures | ||
|---|---|---|
| Adamant （+Atk, -Sp. Atk） |
||
Singles Movesets for Rillaboom
| Build Name | Recommendation |
|---|---|
| Offensive | ★★★★★ |
| Grassy Seed | ★★★★★ |
Offensive Moveset & Best Build
| Nature | Adamant (+Atk, -Sp. Atk) |
|---|---|
| EV Spread | Atk 252 / Sp. Def 4 / Spe 252 |
| Final Stat Values | HP 175 / Atk 194 / Def 110 / Sp. Def 91 / Speed 137 |
| Ability | Grassy Surge |
| Tera Type |
|
| Held Item | Choice Band / Assault Vest |
| Moveset | ・
Grassy Glide
・ Knock Off ・ Tera Blast ・ U-turn |
Summary
 Great Attack stat and good bulk. Strong Ability in Grassy Surge. Ability has synergy with the powerful Grassy Glide. |
Ability and Held Item
|
|
||
|---|---|---|
| Ability | Held Item | |
| Grassy Surge |
 Choice Band
 Assault Vest
|
|
Grassy Surge is Rillaboom's best Ability to set Grassy Terrain to protect teammates from moves like Earthquake and to give passive recovery to every Pokemon on the field. Grassy Terrain is also necessary for Grassy Glide to have a +1 priority.
Rillaboom can use either a Choice Band or an Assault Vest for this build. Choice Band is the offensive option since it increases Rillaboom's damage output, while Assault Vest is the defensive option since it allows Rillaboom to tank hits from opposing Special Attackers.
Moves Breakdown
| Grassy Glide | Knock Off |
| Tera Blast | U-turn |
Grassy Glide is Rillaboom's best Grass-type STAB attack since it has a +1 priority while Grassy Terrain is active.
Knock Off is a strong offensive utility option that allows Rillaboom to remove the opponent's held item.
Tera Blast is Rillaboom's preferred coverage move because, once Terastallized to Rock, it will check all of Rillaboom's counters except for Poison.
U-Turn is used to pivot Rillaboom out of bad matchups.
Best Tera Type: Rock
| Rock Tera Type Matchup | ||
|---|---|---|
| Weak to: | ||
| (2x) |
|
|
| Damaged Normally By: |
(1x) |
|
| Resists: | (0.5x) |
|
Rock is the best Tera Type for this build because it turns Rillaboom's common Flying and Fire weaknesses into resists. It also makes Tera Blast a fantastic coverage move once Rillaboom Terastallizes.
EV Spread and Nature
A full 252 EVs are put into its Attack and Speed to make Rillaboom hit as hard and fast as possible. The extra 4 EVs are placed into Sp. Def to help round out its bulk, especially if it's holding an Assault Vest.
An Adamant nature is preferred to maximize Rillaboom's damage output.
Other Viable Moves
| High Horsepower | A good coverage move that can threaten Fire-types without Rillaboom needing to Terastallize. |
|---|---|
|
Wood Hammer
or Drum Beating |
Stronger Grass-type STAB moves that don't have priority. Wood Hammer is the stronger of the two, but it also has recoil damage. |
Key Damage Calculations
 Damage Dealt by Rillaboom |
|
|---|---|
80 HP | 84 DefDefensive EV Investment: 4 Def |
Tera Type:
Tera Blast
168-200 (108.3 - 129%) Guaranteed OHKO Regardless of Item |
55 HP｜55 DefNo Defensive EV Investment |
Item:
Choice Band
Grassy Glide 157-186 (120.7 - 143%) Guaranteed OHKO Item: Assault Vest Grassy Glide 131 ~ 161 (104.6 ~ 123.8%) Guaranteed 2HKO after Grassy Terrain recovery |
113 HP｜120 DefDefensive EV Investment: 252 HP |
Item:
Choice Band
Grassy Glide 168-200 (76.3 - 90.9%) Guaranteed 2HKO Item: Assault Vest Grassy Glide 114-134 (51.8 - 60.9%) 93.8% Chance to 2HKO after Grassy Terrain recovery |
100 HP｜100 DefDefensive EV Investment: 4 HP |
Item:
Choice Band
Grassy Glide 198-234 (113.1 - 133.7%) Guaranteed OHKO Item: Assault Vest Grassy Glide 132-156 (75.4 - 89.1%) Guaranteed 2HKO after Grassy Terrain recovery |
 Damage Received by Rillaboom |
|
|
135 Sp. Atk Offensive EV Investment: 252 Sp. Atk |
Rillaboom:
Choice Band
Blood Moon 178-210 (101.7 - 120%) Guaranteed OHKO Rillaboom: Assault Vest Blood Moon 118-141 (67.4 - 80.5%) Guaranteed 2HKO after Grassy Terrain recovery |
Game8's Competitive Damage Calculator
Grassy Seed Moveset & Best Build
| Nature | Adamant (+Atk, -Sp. Atk) |
|---|---|
| EV Spread | Atk 252 / Def 4 / Spe 252 |
| Final Stat Values | HP 175 / Atk 194 / Def 111 / Sp. Def 90 / Speed 137 |
| Ability | Grassy Surge |
| Tera Type |
|
| Held Item | Grassy Seed |
| Moveset | ・
Grassy Glide
・ Knock Off ・ Taunt ・ U-turn |
Summary
| Incredibly versatile moveset. Strong Ability in Grassy Surge. Ability has synergy with the powerful Grassy Glide. |
Ability and Held Item
|
|
||
|---|---|---|
| Ability | Held Item | |
| Grassy Surge |
 Grassy Seed
|
|
Grassy Surge is Rillaboom's best Ability to set Grassy Terrain to protect teammates from moves like Earthquake and to give passive recovery to every Pokemon on the field. Grassy Terrain is also necessary for Grassy Glide to have a +1 priority.
Grassy Seed is used to boost Rillaboom's Defense stat by one stage the first time it switches in.
Moves Breakdown
| Grassy Glide | Knock Off |
| Taunt | U-turn |
Grassy Glide is Rillaboom's best Grass-type STAB attack since it has a +1 priority while Grassy Terrain is active.
Knock Off is a strong offensive utility option that allows Rillaboom to remove the opponent's held item.
Taunt is used to prevent opposing setup sweepers or hazard setters from using their status moves.
U-Turn is used to pivot Rillaboom out of bad matchups.
Best Tera Type: Rock
| Rock Tera Type Matchup | ||
|---|---|---|
| Weak to: | ||
| (2x) |
|
|
| Damaged Normally By: |
(1x) |
|
| Resists: | (0.5x) |
|
Rock is the best Tera Type for this build because it turns Rillaboom's common Flying and Fire weaknesses into resists.
EV Spread and Nature
A full 252 EVs are put into its Attack and Speed to make Rillaboom hit as hard and fast as possible. The extra 4 EVs are placed into Def to help round out its bulk especially with the Defense boost from Grassy Seed.
An Adamant nature is preferred to maximize Rillaboom's damage output.
Other Viable Moves
| High Horsepower | A good coverage move that can threaten Fire-types. |
|---|---|
|
Wood Hammer
or Drum Beating |
Stronger Grass-type STAB moves that don't have priority. Wood Hammer is the stronger of the two, but it also has recoil damage. |
| Tera Blast | Once Terastallized to Rock, it becomes an amazing coverage move. |
| Swords Dance | Boosts Rillaboom's Attack by two stages, making Grassy Glide incredibly threatening. |
Doubles Movesets for Rillaboom
| Build Name | Recommendation |
|---|---|
| Grassy Surge Support | ★★★★★ |
Grassy Surge Support Moveset & Best Build
| Nature | Adamant (+Atk, -Sp. Atk) |
|---|---|
| EV Spread | 140 HP / 252 Atk / 4 Def / 84 Sp. Def / 28 Spe |
| Final Stat Values | 193 HP / 194 Atk / 111 Def / 101 Sp. Def / 109 Spe |
| Ability | Grassy Surge |
| Tera Type |
|
| Held Item | Life Orb |
| Moveset | ・
Grassy Glide
・ Knock Off ・ Fake Out ・ High Horsepower |
Summary
| Great Attack stat and good bulk.Strong Ability in Grassy Surge.Ability has synergy with the powerful Grassy Glide.Good offensive utility options in Fake Out and Knock Off. |
Ability and Held Item
|
|
||
|---|---|---|
| Ability | Held Item | |
| Grassy Surge |
 Life Orb
|
|
Grassy Surge is Rillaboom's best Ability, which is important for overwriting opposing Terrain, and protecting teammates from Moves like Earthquake. It can also give passive recovery to every Pokemon on the field.
Life Orb is chosen for this build, as it can ensure that it can get decisive KOs on Flutter Mane and Rapid-Strike Urshifu.
Moves Breakdown
| Grassy Glide | Knock Off |
| Fake Out | High Horsepower |
Grassy Glide is Rillaboom's most notorious move. It gets a damage nerf this generation but is still useful for antagonizing Grass-weak Pokemon because it retains its Priority in Grassy Terrain. This move single-handedly makes Rillaboom a legitimate check to Iron Bundle, who would threaten it with Freeze-Dry in previous Regulation Formats.
Knock Off can disrupt an opponent and remove valuable items, limiting the effectiveness of opposing Pokemon.
Fake Out is an important move for this set, that forces an opponent to play defensively or lose a turn to flinch.
High Horsepower is a strong Ground-type attack that is useful for damaging Fire-type Pokemon who may want to take on Rillaboom 1-on-1. This move can 2-Hit KO even the bulky Incineroar, making it so Rillaboom isn't solely checked by it.
Best Tera Type: Fire
| Fire Tera Type Matchup | ||
|---|---|---|
| Weak to: | ||
| (2x) |
|
|
| Damaged Normally By: |
(1x) |
|
| Resists: | (0.5x) |
|
Fire is the best Tera Type for this build as it can give Rillaboom resistances to Ice, Bug, and Fire, and more importantly, an immunity to Will-O-Wisp. This also allows Rillaboom to take neutral damage from Poison and Flying-type attacks.
An alternate Grass Tera would be a strong offensive Tera that can help Rillaboom score consistent KOs on the likes of Flutter Mane, however Grass Tera Rillaboom would necessitate an Adamant Nature for maximum consistency.
Best Fire Type Pokemon for Ranked Battle
EV Spread and Nature
Rillaboom is given 140 HP, 4 Defense, and 84 Special Defense EVs to give it sizeable bulk, while a full 252 is put into Attack to maximize its damage potential.
28 Speed EVs are invested so that Rillaboom can outspeed Urshifu Rapid-Strike Style under Tailwind conditions, as well as non-Booster Energy Iron Bundle.
Other Viable Moves
| U-turn | U-Turn works well with Rillaboom's middling Speed, allowing it to take a hit and switch out, letting a teammate come in safely. |
|---|---|
| Wood Hammer | A good option for burst damage. Useful for decisive KOs on Grass-weak Pokemon such as Rapid-Strike Urshifu and Dondozo. |
Key Damage Calculations
| Damage Dealt by Rillaboom |
|
|---|---|
|
100 HP｜100 Def Defensive EV Investment: 4 HP |
Grassy Glide 174 ~ 205 (98.8 ~ 116.4%) 87.5% Chance toOH KO |
|
55 HP｜55 Def No Defensive EV Investment |
Grassy Glide 131 ~ 161 (104.6 ~ 123.8%) Guaranteed OHKO |
| Damage Received by Rillaboom |
|
Offensive EV Investment: 252 Sp. Atk |
Bleakwind Storm 140 ~ 168 (67.6 ~ 81.1%) Guaranteed 2-Hit KO After Grassy Terrain Recovery |
Offensive EV Investment: 252 Sp. Atk |
Heat Wave 198 ~ 234 (95.6 ~ 113%) 68.8% Chance to OHKO |
Game8's Competitive Damage Calculator
How to Use Rillaboom Effectively
Use Fake Out to Support Your Team
Fake Out is Rillaboom's most important move and is largely why it is still strong despite not having access to Grassy Glide. Use this to get better positioning in a match!
Use Rillaboom to KO Flutter Mane and Rapid-Strike Ushifu
Rillaboom with Grassy Glide can effectively work as a check to Flutter Mane and Urshifu, out-prioritizing both, and KOing them if they have not invested heavily in physical bulk.
How to Build a Team with Rillaboom
Rillaboom can comfortably fill a slot in your team if you need a Grass-type. It is a solid addition to any Fire-Water-Grass core and fulfils a supportive or offensive role.
Sample Singles Team
| Offensive Lead | Physical Attacker | Special Attacker |
|---|---|---|
|
Rillaboom
|
Ogerpon (Hearthflame Mask)
|
 Iron Bundle
|
Rillaboom is a great lead to set up an early Grassy Terrain and threaten quick knockouts with Grassy Glide. It can also cripple opposing leads with moves like Knock Off and Taunt. If Rillaboom is lead versus a bad matchup, then it can also switch out with U-Turn.
Hearthflame Ogerpon is used as a mind game tool to trick your opponents into thinking that it also has Grassy Glide. If they think that they will get knocked out by Ogerpon's Grassy Glide, they will defensively Terastallize and you can hit them with an Ivy Cudgel instead.
Iron Bundle has good matchups into Pokemon that the rest of the team cannot deal with. Between STAB Hydro Pump and Freeze-Dry, it is difficult for most Pokemon to wall Iron Bundle even with a defensive Tera.
Sample Doubles Team
| Physical Attacker / Sun Setter | Support / Special Attacker |
|---|---|
 Groudon
|
 Venusaur
|
| Support / Physical Attacker | Support / Physical Attacker |
 Incineroar
|
Rillaboom
|
Venusaur can be an effective partner to Groudon in Regulation I, as it has in the past, offering disruptive support with Sleep Powder, as well as being able to threaten Water-types that Groudon may have trouble with.
Rillaboom can protect Groudon from Water-types as well with its Priority Grassy Glide.
Incineroar can offer consistent support in a team with Sun, as it can Intimidate and pivot out with U-Turn or Parting Shot, as well as enjoy Sun-boosted Flare Blitz.
Counters for Rillaboom
Hit Rillaboom with Super-Effective Attacks
While modestly bulky, Rillabooms usually do not carry Protect and will be susceptible to getting double-targeted. Have it waste Fake Out with a well-timed Tera or Protect, and take it out of the game as soon as possible!
Best Pokemon to Use
| Pokemon | Description |
|---|---|
|
Tornadus (Incarnate Forme)
|
Ranking: ★★★★★
・Can Tera to protect itself from Fake Out. ・Can hit Rillaboom for super-effective damage with Bleakwind Storm. ▶️Tornadus Best Movesets |
 Galarian Moltres
|
Ranking: ★★★★
・Can wall all of Rillaboom's offensive options. ・Can hit Rillaboom with a super-effective Flying-type attack. ▶️Galarian Moltres Best Movesets |
 Landorus (Therian Forme)
|
Ranking: ★★★★
・Can wall all of Rillaboom's offensive options. ・Can hit Rillaboom with a super-effective Flying-type attack. ▶️Landorus Best Movesets |
Related Guides
Movesets & Best Builds for Ranked Battle
Banned/Restricted Builds
| Mythical/Restricted Builds |
|---|
|
Ranked Battle Regulation J: Rules and Banned Pokemon
All Indigo Disk DLC Builds for Ranked Battle
New Indigo Disk Pokemon Builds
| New Indigo Disk Pokemon Builds |
|---|
|
Snack Legendary Builds
| New Indigo Disk Pokemon Builds |
|---|
|
Returning Indigo Disk Pokemon Builds
| Returning Indigo Disk Pokemon Builds |
|---|
|
Blueberry Pokedex: List of All Indigo Disk Pokemon
All Teal Mask DLC Builds for Ranked Battle
| All Teal Mask DLC Builds |
|---|
|
Kitakami Pokedex: List of All Teal Mask DLC Pokemon
All Pokemon HOME Builds for Ranked Battle
| All Pokemon HOME Builds |
|---|
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All Pokemon HOME Transferable Pokemon
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| All Treasures of Ruin Builds |
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Best Treasures of Ruin Builds for Ranked Battle and Raids
All Paradox Pokemon Builds for Ranked Battle
| All Paradox Pokemon Builds |
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Paradox Pokemon Builds for Competitive Battles and Tera Raids
All Other Gen 9 Meta Pokemon Builds for Ranked Battle
| All Other Gen 9 Meta Pokemon Builds |
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Gen 9 Pokemon: All New Pokemon
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| All Gen 1~8 Meta Pokemon Builds |
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All Off-Meta Builds for Ranked Battle
| All Off-Meta Pokemon Builds |
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