Is Rillaboom viable in Gen 9 National Dex?

Rillaboom is ranked #50 in Gen 9 National Dex with 3.78% usage according to Smogon Mar 2026 - May 2026 data.

What beats Rillaboom in Gen 9 National Dex?

The best counter for Rillaboom in Gen 9 National Dex is Dragonite with a 88.4% win rate when they meet. Based on Smogon's Mar 2026 - May 2026 usage data, the top Pokémon that beat Rillaboom include Dragonite, Gholdengo, Zapdos, Kingambit, Zamazenta.

What is the best counter for Rillaboom in Gen 9 National Dex?

Dragonite is the best counter for Rillaboom in Gen 9 National Dex, KOing or forcing it out in 88.4% of their encounters.

Rillaboom counters

Gen 9 National Dex · Sorted by reliability score · Smogon · Mar 2026 - May 2026

#0812 Rillaboom

Grass

USAGE 3.8% #50

ABILITYGrassy Surge

BASE STATS

HP 100

ATK 125

DEF 90

SPA 60

SPD 70

SPE 85

BST530

TYPE MATCHUPS

2×

FireIcePoisonFlyingBug

½×

WaterElectricGrassGround

Moves

Grassy Glide 99.6% U-turn 84.7% Wood Hammer 77.4% Knock Off 75.3% Swords Dance 20.3% Superpower 19.4% Drain Punch 7.9% High Horsepower 6.6%

Items

Choice Band 70.9% Life Orb 9.4% Terrain Extender 5.9% Grassium Z 5.7% Leftovers 2.5% Assault Vest 1.5% Grassy Seed 1.5% Protective Pads 0.8%

Abilities

Grassy Surge99.9%Overgrow0.1%

Common Teammates

Browse Gen 9 National Dex teams using Rillaboom →

Teams using Dragonite 88% Teams using Gholdengo 64% Teams using Zapdos 63% Teams using Kingambit 60% Teams using Zamazenta 59% Teams using Tapu Lele 58%

Checks & Counters

Ranked by reliability — blends KO rate with how often each Pokémon is matched up.

# Checker Encounters Reliability KO Rate

Dragonite

DragonFlying OFFENSIVE CHECK

45.97

88.4% dies 6.67%

DAMAGE CALCGrassy Terrain

252+ Atk Dragonite Fly vs. 252 HP / 0 Def Rillaboom: 362-428 (89.6 - 105.9%) -- 37.5% chance to OHKO

View Dragonite counters → Teams with Dragonite →

Gholdengo

SteelGhost OFFENSIVE CHECK

49.242

64.5% dies 9.47%

DAMAGE CALCGrassy Terrain

252+ SpA Gholdengo Make It Rain vs. 252 HP / 252+ SpD Rillaboom: 198-234 (49 - 57.9%) -- 56.3% chance to 2HKO after Grassy Terrain recovery

View Gholdengo counters → Teams with Gholdengo →

Zapdos

ElectricFlying OFFENSIVE CHECK

74.288

62.6% dies 9.70%

DAMAGE CALCGrassy Terrain

252+ SpA Zapdos Hurricane vs. 252 HP / 252+ SpD Rillaboom: 348-410 (86.1 - 101.4%) -- 12.5% chance to OHKO

View Zapdos counters → Teams with Zapdos →

Kingambit

DarkSteel DEFENSIVE COUNTER

22.879

60.4% dies 10.22%

DAMAGE CALCGrassy Terrain

252+ Atk Choice Band Rillaboom Superpower vs. 252 HP / 252+ Def Kingambit: 532-628 (131.6 - 155.4%) -- guaranteed OHKO

View Kingambit counters → Teams with Kingambit →

Zamazenta

Fighting OFFENSIVE CHECK

65.71

58.9% dies 10.50%

DAMAGE CALCGrassy Terrain

252+ Atk Zamazenta Close Combat vs. 252 HP / 0 Def Rillaboom: 222-262 (54.9 - 64.8%) -- guaranteed 2HKO after Grassy Terrain recovery

View Zamazenta counters → Teams with Zamazenta →

Tapu Lele

PsychicFairy OFFENSIVE CHECK

30.872

57.7% dies 8.89%

DAMAGE CALCPsychic Terrain

252+ SpA Tapu Lele Future Sight vs. 252 HP / 252+ SpD Rillaboom in Psychic Terrain: 253-298 (62.6 - 73.7%) -- guaranteed 2HKO

View Tapu Lele counters → Teams with Tapu Lele →

Garchomp

DragonGround SOFT CHECK

32.099

44.2% dies 8.77%

DAMAGE CALCGrassy Terrain

252+ Atk Garchomp Outrage vs. 252 HP / 0 Def Rillaboom: 235-277 (58.1 - 68.5%) -- guaranteed 2HKO after Grassy Terrain recovery

View Garchomp counters → Teams with Garchomp →

Terapagos

Normal SOFT CHECK

20.635

43.3% dies 10.91%

DAMAGE CALCGrassy Terrain

0- SpA Terapagos Tera Starstorm vs. 252 HP / 252+ SpD Rillaboom: 75-88 (18.5 - 21.7%) -- possible 7HKO

View Terapagos counters → Teams with Terapagos →

Gliscor

GroundFlying SOFT CHECK

116.534

41.1% dies 7.84%

DAMAGE CALCGrassy Terrain

252+ Atk Gliscor Knock Off (97.5 BP) vs. 252 HP / 0 Def Rillaboom: 102-121 (25.2 - 29.9%) -- 0.1% chance to 4HKO after Grassy Terrain recovery

View Gliscor counters → Teams with Gliscor →

Great Tusk

GroundFighting SOFT CHECK

54.64

33.9% dies 9.01%

DAMAGE CALCGrassy Terrain

252+ Atk Great Tusk Close Combat vs. 252 HP / 0 Def Rillaboom: 237-280 (58.6 - 69.3%) -- guaranteed 2HKO after Grassy Terrain recovery

View Great Tusk counters → Teams with Great Tusk →

Iron Valiant

FairyFighting SOFT CHECK

24.142

31.1% dies 9.42%

DAMAGE CALCGrassy Terrain

0- Atk Iron Valiant Close Combat vs. 252 HP / 0 Def Rillaboom: 160-189 (39.6 - 46.7%) -- guaranteed 3HKO after Grassy Terrain recovery

View Iron Valiant counters → Teams with Iron Valiant →

Ogerpon-Wellspring

GrassWater SOFT CHECK

51.181

22.3% dies 8.09%

DAMAGE CALCGrassy Terrain

252+ Atk Wellspring Mask Ogerpon-Wellspring U-turn vs. 252 HP / 0 Def Rillaboom: 208-246 (51.4 - 60.8%) -- 92.6% chance to 2HKO after Grassy Terrain recovery

View Ogerpon-Wellspring counters → Teams with Ogerpon-Wellspring →

Landorus-Therian

GroundFlying SOFT CHECK

95.827

21.0% dies 7.13%

DAMAGE CALCGrassy Terrain

252+ Atk Landorus-Therian Explosion vs. 252 HP / 0 Def Rillaboom: 354-417 (87.6 - 103.2%) -- 25% chance to OHKO

View Landorus-Therian counters → Teams with Landorus-Therian →

Diancie-Mega

RockFairy SOFT CHECK

24.047

18.9% dies 7.99%

DAMAGE CALCGrassy Terrain

252+ SpA Diancie-Mega Mystical Fire vs. 252 HP / 252+ SpD Rillaboom: 190-224 (47 - 55.4%) -- 14.8% chance to 2HKO after Grassy Terrain recovery

View Diancie-Mega counters → Teams with Diancie-Mega →

Alomomola

Water SOFT CHECK

133.188

11.8% dies 4.84%

DAMAGE CALCGrassy Terrain

252+ Atk Alomomola Knock Off (97.5 BP) vs. 252 HP / 0 Def Rillaboom: 88-104 (21.7 - 25.7%) -- possible 5HKO

View Alomomola counters → Teams with Alomomola →

Ranked #50 with 3.78% usage. Sorted by reliability score.