Dittobase

Home

Games

Pokémon GO
Pokopia
Pokémon Unite

Cards

TCG Pocket
Pokémon TCG

Main Series

Legends Z-A
Scarlet & Violet
HOME
Legends: Arceus
Brilliant Diamond and Shining Pearl
Sword and Shield
Let's Go, Pikachu! and Eevee!
Ultra Sun and Ultra Moon
Sun and Moon
Omega Ruby and Alpha Sapphire
X and Y
Black 2 and White 2
Black and White
HeartGold and SoulSilver
Platinum
Diamond and Pearl
Emerald
FireRed and LeafGreen
Ruby and Sapphire
Crystal
Gold and Silver
Yellow
Red and Blue

Tools

Sword and Shield

Game

Sword and Shield

News

Updates for this game hub

Guides

Galar mechanics and tips

Pokédex

Stats, moves, and dexes

Moves

Power, accuracy, and learners

Abilities

Effects and Pokémon lists

Items

Pockets, machines, and effects

Gym Leaders

Gyms, Champion Cup, and Leon

Egg Groups

Breeding groups and members

SwSh / Pokédex

Rillaboom

Rillaboom

Galar #3 in the Sword and Shield Pokédex • Drummer Pokémon

Rillaboom

Galar #3 in the Sword and Shield Pokédex • Drummer Pokémon

Stats

Base stat spread shown as a hex chart and supporting stat bars.

Min

Max

HP

100

310

404

Attack

125

229

383

Defense

90

166

306

Sp. Atk

60

112

240

Sp. Def

70

130

262

Speed

85

157

295

Total

530

Ranges are for Level 100. Max assumes a beneficial nature, 252 EVs, and 31 IVs; min assumes a hindering nature, 0 EVs, and 0 IVs.

Thwackey

Rillaboom Gigantamax

Rillaboom normal sprite

Normal

Shiny Rillaboom sprite

Shiny

Rillaboom

Drummer Pokémon

Galar #3
Grass

Height

2.1 m (6'11")

Weight

90 kg (198.4 lbs)

Abilities

OvergrowGrassy Surge(Hidden Ability)

It's Super Effective

Damage multipliers Rillaboom takes from each attacking type, sorted from worst weakness to best resistance.

Weak to

Fire

Ice

Poison

Flying

Bug

Resists

Water

0.5×

Electric

0.5×

Grass

0.5×

Ground

0.5×

Growth

EV yield, catch rate, and experience details for this Pokémon.
Pokédexes
Galar #3
EV yield
3 Atk
Catch rate
45
Base Exp.
265

Eggs

Egg groups, gender ratio, and hatching details for this Pokémon.
Egg Groups
FieldGrass
Gender
87.5% male
12.5% female
Egg cycles
20 (5,120 steps)

Lore

Version-specific Pokédex entries for this Pokémon.
Pokémon Sword box art

Sword

By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.

Pokémon Shield box art

Shield

The one with the best drumming techniques becomes the boss of the troop. It has a gentle disposition and values harmony among its group.

Evolution

Evolution requirements shown in a compact table or chain view.
PokémonRequiresEvolution
Grookey

Grookey

Galar #1

Level 16

Thwackey

Thwackey

Galar #2

Thwackey

Thwackey

Galar #2

Level 35

Rillaboom

Rillaboom

Galar #3

Moves

Moves this Pokémon learns naturally by reaching specific levels.
Class
Description
StartDrum BeatingGrassPhysical8010010

The user plays its drum, controlling the drum’s roots to attack the target. This also lowers the target’s Speed stat.

StartScratchNormalPhysical4010035

Hard, pointed, sharp claws rake the target to inflict damage.

StartGrowlNormalStatus-10040

The user growls in an endearing way, making opposing Pokémon less wary. This lowers their Attack stats.

StartTauntDarkStatus-10020

The target is taunted into a rage that allows it to use only attack moves for three turns.

StartDouble HitNormalPhysical359010

The user slams the target with a long tail, vines, or a tentacle. The target is hit twice in a row.

StartNoble RoarNormalStatus-10030

Letting out a noble roar, the user intimidates the target and lowers its Attack and Sp. Atk stats.

StartGrassy TerrainGrassStatus--10

The user turns the ground to grass for five turns. This restores the HP of Pokémon on the ground a little every turn and powers up Grass-type moves.

StartDrum BeatingGrassPhysical8010010

The user plays its drum, controlling the drum’s roots to attack the target. This also lowers the target’s Speed stat.

StartBranch PokeGrassPhysical4010040

The user attacks the target by poking it with a sharply pointed branch.

12Razor LeafGrassPhysical559525

Sharp-edged leaves are launched to slash at opposing Pokémon. Critical hits land more easily.

19ScreechNormalStatus-8540

An earsplitting screech harshly lowers the target’s Defense stat.

24Knock OffDarkPhysical6510020

The user slaps down the target’s held item, and that item can’t be used in that battle. The move does more damage if the target has a held item.

30SlamNormalPhysical807520

The target is slammed with a long tail, vines, or the like to inflict damage.

38UproarNormalSpecial9010010

The user attacks in an uproar for three turns. During that time, no Pokémon can fall asleep.

46Wood HammerGrassPhysical12010015

The user slams its rugged body into the target to attack. This also damages the user quite a lot.

54EndeavorNormalPhysical-1005

This attack move cuts down the target’s HP to equal the user’s HP.

62BoomburstNormalSpecial14010010

The user attacks everything around it with the destructive power of a terrible, explosive sound.

Machines

Moves this Pokémon can learn from Technical Machines and Technical Records in Pokémon Sword and Shield.
Class
Description
TM00Mega PunchNormalPhysical808520

The target is slugged by a punch thrown with muscle-packed power.

TM01Mega KickNormalPhysical120755

The target is attacked by a kick launched with muscle-packed power.

TM08Hyper BeamNormalSpecial150905

The target is attacked with a powerful beam. The user can’t move on the next turn.

TM09Giga ImpactNormalPhysical150905

The user charges at the target using every bit of its power. The user can’t move on the next turn.

TM10Magical LeafGrassSpecial60-20

The user scatters curious leaves that chase the target. This attack never misses.

TM11Solar BeamGrassSpecial12010010

In this two-turn attack, the user gathers light, then blasts a bundled beam on the next turn.

TM12Solar BladeGrassPhysical12510010

In this two-turn attack, the user gathers light and fills a blade with the light’s energy, attacking the target on the next turn.

TM16ScreechNormalStatus-8540

An earsplitting screech harshly lowers the target’s Defense stat.

TM21RestPsychicStatus--5

The user goes to sleep for two turns. This fully restores the user’s HP and heals any status conditions.

TM24SnoreNormalSpecial5010015

This attack can be used only if the user is asleep. The harsh noise may also make the target flinch.

TM25ProtectNormalStatus--10

This move enables the user to protect itself from all attacks. Its chance of failing rises if it is used in succession.

TM26Scary FaceNormalStatus-10010

The user frightens the target with a scary face to harshly lower its Speed stat.

TM28Giga DrainGrassSpecial7510010

A nutrient-draining attack. The user’s HP is restored by half the damage taken by the target.

TM31AttractNormalStatus-10015

If it is the opposite gender of the user, the target becomes infatuated and less likely to attack.

TM34Sunny DayFireStatus--5

The user intensifies the sun for five turns, powering up Fire-type moves. It lowers the power of Water-type moves.

TM39FacadeNormalPhysical7010020

This attack move doubles its power if the user is poisoned, burned, or paralyzed.

TM40SwiftNormalSpecial60-20

Star-shaped rays are shot at opposing Pokémon. This attack never misses.

TM43Brick BreakFightingPhysical7510015

The user attacks with a swift chop. It can also break barriers, such as Light Screen and Reflect.

TM50Bullet SeedGrassPhysical2510030

The user forcefully shoots seeds at the target two to five times in a row.

TM53Mud ShotGroundSpecial559515

The user attacks by hurling a blob of mud at the target. This also lowers the target’s Speed stat.

TM56U-turnBugPhysical7010020

After making its attack, the user rushes back to switch places with a party Pokémon in waiting.

TM58AssuranceDarkPhysical6010010

If the target has already taken some damage in the same turn, this attack’s power is doubled.

TM59FlingDarkPhysical-10010

The user flings its held item at the target to attack. This move’s power and effects depend on the item.

TM63Drain PunchFightingPhysical7510010

An energy-draining punch. The user’s HP is restored by half the damage taken by the target.

TM76RoundNormalSpecial6010015

The user attacks the target with a song. Others can join in the Round to increase the power of the attack.

TM78AcrobaticsFlyingPhysical5510015

The user nimbly strikes the target. If the user is not holding an item, this attack inflicts massive damage.

TM81BulldozeGroundPhysical6010020

The user strikes everything around it by stomping down on the ground. This lowers the Speed stats of those hit.

TM85SnarlDarkSpecial559515

The user yells as if it’s ranting about something, which lowers the Sp. Atk stats of opposing Pokémon.

TM88Grassy TerrainGrassStatus--10

The user turns the ground to grass for five turns. This restores the HP of Pokémon on the ground a little every turn and powers up Grass-type moves.

TM94False SwipeNormalPhysical4010040

A restrained attack that prevents the target from fainting. The target is left with at least 1 HP.

TM97Brutal SwingDarkPhysical6010020

The user swings its body around violently to inflict damage on everything in its vicinity.

TM98Stomping TantrumGroundPhysical7510010

Driven by frustration, the user attacks the target. If the user’s previous move has failed, the power of this move doubles.

TR00Swords DanceNormalStatus--20

A frenetic dance to uplift the fighting spirit. This sharply raises the user’s Attack stat.

TR01Body SlamNormalPhysical8510015

The user drops onto the target with its full body weight. This may also leave the target with paralysis.

TR07Low KickFightingPhysical-10020

A powerful low kick that makes the target fall over. The heavier the target, the greater the move’s power.

TR10EarthquakeGroundPhysical10010010

The user sets off an earthquake that strikes every Pokémon around it.

TR13Focus EnergyNormalStatus--30

The user takes a deep breath and focuses so that critical hits land more easily.

TR20SubstituteNormalStatus--10

The user creates a substitute for itself using some of its HP. The substitute serves as the user’s decoy.

TR26EndureNormalStatus--10

The user endures any attack with at least 1 HP. Its chance of failing rises if it is used in succession.

TR27Sleep TalkNormalStatus--10

While it is asleep, the user randomly uses one of the moves it knows.

TR35UproarNormalSpecial9010010

The user attacks in an uproar for three turns. During that time, no Pokémon can fall asleep.

TR37TauntDarkStatus-10020

The target is taunted into a rage that allows it to use only attack moves for three turns.

TR39SuperpowerFightingPhysical1201005

The user attacks the target with great power. However, this also lowers the user’s Attack and Defense stats.

TR42Hyper VoiceNormalSpecial9010010

The user lets loose a horribly echoing shout with the power to inflict damage.

TR48Bulk UpFightingStatus--20

The user tenses its muscles to bulk up its body, raising both its Attack and Defense stats.

TR64Focus BlastFightingSpecial120705

The user heightens its mental focus and unleashes its power. This may also lower the target’s Sp. Def stat.

TR65Energy BallGrassSpecial9010010

The user draws power from nature and fires it at the target. This may also lower the target’s Sp. Def stat.

TR67Earth PowerGroundSpecial9010010

The user makes the ground under the target erupt with power. This may also lower the target’s Sp. Def stat.

TR71Leaf StormGrassSpecial130905

The user whips up a storm of leaves around the target. The attack’s recoil harshly lowers the user’s Sp. Atk stat.

TR77Grass KnotGrassSpecial-10020

The user snares the target with grass and trips it. The heavier the target, the greater the move’s power.

TR85Work UpNormalStatus--30

The user is roused, and its Attack and Sp. Atk stats increase.

TR93Darkest LariatDarkPhysical8510010

The user swings both arms and hits the target. The target’s stat changes don’t affect this attack’s damage.

TR94High HorsepowerGroundPhysical959510

The user fiercely attacks the target using its entire body.

TR99Body PressFightingPhysical8010010

The user attacks by slamming its body into the target. The higher the user’s Defense, the more damage it can inflict on the target.

Tutors

Moves this Pokémon can learn from move tutors in this game.
Class
Description
Frenzy PlantGrassSpecial150905

The user slams the target with the roots of an enormous tree. The user can’t move on the next turn.

Grass PledgeGrassSpecial8010010

A column of grass hits the target. When used with its water equivalent, its power increases and a vast swamp appears.

Grassy GlideGrassPhysical5510020

Gliding on the ground, the user attacks the target. This move always goes first on Grassy Terrain.

Traits

Ability options available to this Pokémon in this game.

Overgrow

Ability Slot 1

Powers up Grass-type moves when the Pokémon’s HP is low.

Strengthens Grass moves to inflict 1.5× damage at 1/3 max HP or less.

Grassy Surge(Hidden Ability)

Turns the ground into Grassy Terrain when the Pokémon enters a battle.

When this Pokémon enters battle, it changes the terrain to Grassy Terrain.

#2

Thwackey

#3

Rillaboom Gigantamax

Join Discord

Join a community of over 5,000+ other trainers.

discord.gg/dittobase
Dittobase

© 2026 dittobase.com. All rights reserved.

This website is an independent platform and is not associated with, validated, backed, or sponsored by Nintendo, Game Freak, Niantic, or The Pokémon Company.