Physical
Wallbreaker
85Speed · Above Avg

Nothing fancy in Rillaboom's spread. It leans physical with Attack out front. And you'll get 3 Attack EVs per KO for it. Follows a 1.06M XP medium-slow curve.

Base Stats
High
HP100
B
Attack125
A
Defense90
B
Sp. Atk60
C
Sp. Def70
C
Speed85
C
Total530
Details
Catch Rate
Challenging45 / 255
Growth Rate
Medium Slow1.06M XP
Height2.1 m
Weight90.0 kg
Base XP265
Abilities
OvergrowRare
Strengthens grass moves to inflict 1.5× damage at 1/3 max HP or less.
Grassy SurgeHATop Pick
When this Pokémon enters battle, it changes the terrain to Grassy Terrain.
EV Yield
HPAtk+3DefSpASpDSpe
Strong Attack training target
Pokedex Entries

Gigantamax energy has caused Rillaboom’s stump to grow into a drum set that resembles a forest.

Rillaboom is weak to Fire, Ice, Poison, Flying, and Bug. The Grass typing picks up 4 resistances to work with. That's a lot of weak spots to cover so team support is important.

Rillaboom Weakness and Resistance Chart
DamageTypes
2x (Weak)Fire, Ice, Poison, Flying, Bug
0.5x (Resist)Water, Electric, Grass, Ground
Type ChartFragile
5Weak
4Resist
0Immune
Score-6
4xCritical
None
¼xResist
None
0xImmune
None
How to Beat Rillaboom (Best Counters)
Sandslash
SandslashWalls physical sets
Ground
A
Recommended Build
AbilitySandrush
ItemRocky Helmet
NatureImpish
Moves
  • Rapid Spin
  • EarthquakeSTAB
  • Knock Off
  • Stealth Rock
Damage vs Rillaboom
Rapid Spin
11-13%
Earthquake
16-19%
Knock Off
14-17%
View Sandslash builds →

The three-stage chain from Grookey through Thwackey ends here at Rillaboom. Want more? Breed for Grookey eggs. A massive partner pool available via two egg groups. The evolution from Grookey pushed Rillaboom to 530 total stats. Attack saw the largest single gain at +60. View every chain in the Evolution Chart.

How to Evolve

3 Forms
Stat Comparison 3 Stages
Grookey
Grass
Rillaboom
Grass
HP
50
70+20
100+30
ATK
65
85+20
125+40
DEF
50
70+20
90+20
SP.ATK
40
55+15
60+5
SP.DEF
40
60+20
70+10
SPE
65
80+15
85+5
BST
310B-Tier
420C-Tier+110
530S-Tier+110
ROLE
Balanced
Balanced
Wallbreaker
TYPE
Physical
Physical
Physical

Breeding

Easy

Breed with Rillaboom to get Grookey eggs easily using 278 partners from the Ground and Plant egg groups.

Egg Groups
GroundPlant
Gender
87.5%12.5%
Hatch Time
20 cycles·5,140 steps
Quick~5 min with Flame Body
Breed With (best first)
raichupikachunidokinggolduckampharosvenusaurmeganiumtorterraroseradeserperiorrhydonludicolo

Bulk and offense in one package. Rillaboom runs Assault Vest for a special bulk boost with no status moves allowed with a Jolly nature, so it survives long enough to threaten with Fakeout. Flexible EVs and the remaining moves make it hard to safely switch into.

Best Build

Highly recommended
Ability
Grassy Surge
Item
Assault VestBULK
Best Nature for Rillaboom
Jolly+SPE

Rillaboom best EVs are Attack and Speed

EVs

Doubles Physical Sweeper Moveset

  • Fake Out
  • Grassy GlideSTAB
  • Wood HammerSTAB
  • High Horsepower

Recommended Teammates

Moves

Most of Rillaboom's flexibility comes from TMs. Same-type output runs through Frenzy Plant and Leaf Storm, but Normal and Dark and the rest of the TM pool push it from predictable to genuinely threatening.

Level-Up Moves

Lv 1
Branch Poke
4010040Grass
Lv 1
Double Hit
D359010Normal
Lv 1
Grassy Terrain
D10Grass
Lv 1
Growl
D10040Normal
Lv 1
Noble Roar
10030Normal
Lv 1
Scratch
4010035Normal
Lv 1
Taunt
C10020Dark
Lv 12
Razor Leaf
C559525Grass
Lv 19
Screech
C8540Normal
Lv 24
Knock Off
S6510020Dark
Lv 30
Slam
807520Normal
Lv 38
Uproar
D9010010Normal
Lv 46
Wood Hammer
S12010015Grass
Lv 54
Endeavor
D1005Normal
Lv 62
Boomburst
C14010010Normal

TM Moves

TM
TM14
Acrobatics
C5510015Flying
TM89
Body Press
C8010010Fighting
TM66
Body Slam
C8510015Normal
TM58
Brick Break
C7510015Fighting
TM64
Bulk Up
C20Fighting
TM28
Bulldoze
C6010020Ground
TM56
Bullet Seed
D2510030Grass
TM204
Double-Edge
B12010015Normal
TM73
Drain Punch
B7510010Fighting
TM133
Earth Power
D9010010Ground
TM149
Earthquake
B10010010Ground
TM205
Endeavor
D1005Normal
TM47
Endure+4
C10Normal
TM119
Energy Ball
C9010010Grass
TM25
Facade
C7010020Normal
TM57
False Swipe
4010040Normal
TM43
Fling
D10010Dark
TM158
Focus Blast
D120705Fighting
TM192
Focus Punch-3
B15010020Fighting
TM155
Frenzy Plant
B150905Grass
TM111
Giga Drain
C7510010Grass
TM152
Giga Impact
B150905Normal
TM81
Grass Knot
D10020Grass
TM146
Grass Pledge
C8010010Grass
TM194
Grassy Glide
S5510020Grass
TM137
Grassy Terrain
D10Grass
TM186
High Horsepower
A959510Ground
TM163
Hyper Beam
C150905Normal
TM117
Hyper Voice
D9010010Normal
TM181
Knock Off
S6510020Dark
TM159
Leaf Storm
C130905Grass
TM12
Low Kick
D10020Fighting
TM39
Low Sweep
C6510020Fighting
TM33
Magical Leaf
D6020Grass
TM35
Mud Shot
D559515Ground
TM07
Protect+4
C10Normal
TM85
Rest
C5Psychic
TM06
Scary Face
C10010Normal
TM71
Seed Bomb
B8010015Grass
TM70
Sleep Talk
C10Normal
TM30
Snarl
D559515Dark
TM168
Solar Beam
C12010010Grass
TM190
Solar Blade
B12510010Grass
TM84
Stomping Tantrum
C7510010Ground
TM103
Substitute
C10Normal
TM49
Sunny Day
C5Fire
TM32
Swift
D6020Normal
TM88
Swords Dance
C20Normal
TM01
Take Down
C908520Normal
TM87
Taunt
C10020Dark
TM171
Tera Blast
D8010010Normal
TM18
Thief
C6010025Dark
TM20
Trailblaze
C5010020Grass
TM60
U-turn
S7010020Bug
TM191
Uproar
D9010010Normal

Egg Moves

Rillaboom doesn't have any Egg moves

Tutor Moves

Rillaboom can't learn any Tutor moves

How to Obtain Rillaboom in Scarlet & Violet

  1. Grookey
    Step 1Obtain Grookey
  2. Thwackey
    Step 2Evolve into Thwackey
  3. Rillaboom
    Step 3Rillaboom
  • Rillaboom works as a wallbreaker with 530 BST behind it. S-Tier on our list: one of the best competitive options available. That 125 base Attack does the heavy lifting.

  • Rillaboom's biggest threats include Blaziken (Fire), Weavile (Ice), and Salazzle (Poison), all carrying super-effective STAB moves. Flying and Bug-type attackers are also a problem. With 5 weakness types, most competitive teams carry at least one counter.

  • Overgrow is the go-to ability for Rillaboom. It strengthens grass moves to inflict 1.5× damage at 1/3 max HP or less. Its hidden ability Grassy Surge can work in specific setups.

  • Rillaboom is a physical attacker with base 125 Attack. Enough bulk to take a hit or two, too. Speed tells the real story. Base 85 Speed is workable. Faster than some, slower than many. Fits the wallbreaker role.

  • Best way to handle Rillaboom: Status moves (Toxic, Will-O-Wisp) wear it down. Setup sweepers can use it as a boost opportunity. Special attackers bypass its physical bulk.

Available since Sword & Shield, Rillaboom appears in 2 games spanning 3 generations. Beyond its original form, it gained a Gigantamax form in Generation 8.

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