Is Rillaboom viable in Gen 9 National Dex Doubles?

Rillaboom is ranked #3 in Gen 9 National Dex Doubles with 23.42% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Rillaboom in Gen 9 National Dex Doubles?

The best counter for Rillaboom in Gen 9 National Dex Doubles is Tornadus with a 51.3% win rate when they meet. Based on Smogon's Feb 2026 - Apr 2026 usage data, the top Pokémon that beat Rillaboom include Tornadus, Rillaboom, Tapu Fini, Incineroar, Flutter Mane.

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

Tornadus is the best counter for Rillaboom in Gen 9 National Dex Doubles, KOing or forcing it out in 51.3% of their encounters.

Rillaboom counters

Gen 9 National Dex Doubles · Sorted by reliability score · Smogon · Feb 2026 - Apr 2026

#0812 Rillaboom

Grass

USAGE 23.4% #3

ABILITYGrassy Surge

BASE STATS

HP 100

ATK 125

DEF 90

SPA 60

SPD 70

SPE 85

BST530

TYPE MATCHUPS

2×

FireIcePoisonFlyingBug

½×

WaterElectricGrassGround

Moves

Fake Out 99.1% Grassy Glide 97.3% Wood Hammer 82.3% U-turn 80.4% High Horsepower 24.3% Knock Off 3.5% Stomping Tantrum 2.9% Low Kick 2.5%

Items

Assault Vest 80.4% Life Orb 11.7% Choice Band 2.5% Miracle Seed 2.0% Loaded Dice 0.7% Leftovers 0.5% Meadow Plate 0.4% Grassium Z 0.4%

Abilities

Grassy Surge99.9%Overgrow0.1%

Tera Types

Fire 67.1% Grass 16.8% Water 6.2% Rock 4.9% Ground 2.0% Ghost 1.2% Dragon 0.7%

Common Teammates

Flutter Mane40.8%

Charizard-Mega-Y32.0%

Checks & Counters

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

# Checker Encounters Reliability KO Rate

Tornadus

Flying SOFT CHECK

35.365

51.3% dies 8.40%

DAMAGE CALCGrassy Terrain

252+ SpA Tornadus Bleakwind Storm vs. 252 HP / 252+ SpD Assault Vest Rillaboom: 210-248 (51.9 - 61.3%) -- 95.3% chance to 2HKO after Grassy Terrain recovery

View Tornadus counters → Teams with Tornadus →

Rillaboom

Grass SOFT CHECK

28.055

49.4% dies 9.44%

DAMAGE CALCGrassy Terrain

252+ Atk Rillaboom U-turn vs. 252 HP / 0 Def Rillaboom: 180-212 (44.5 - 52.4%) -- guaranteed 3HKO after Grassy Terrain recovery

View Rillaboom counters → Teams with Rillaboom →

Tapu Fini

WaterFairy SOFT CHECK

24.945

37.1% dies 9.67%

DAMAGE CALCMisty Terrain

252+ SpA Tapu Fini Moonblast vs. 252 HP / 252+ SpD Assault Vest Rillaboom: 84-99 (20.7 - 24.5%) -- guaranteed 5HKO

View Tapu Fini counters → Teams with Tapu Fini →

Incineroar

FireDark SOFT CHECK

47.615

35.7% dies 6.94%

DAMAGE CALCGrassy Terrain

252+ Atk Incineroar Flare Blitz vs. 252 HP / 0 Def Rillaboom: 432-510 (106.9 - 126.2%) -- guaranteed OHKO

View Incineroar counters → Teams with Incineroar →

Flutter Mane

GhostFairy SOFT CHECK

29.676

18.2% dies 7.09%

DAMAGE CALCGrassy Terrain

252+ SpA Choice Specs Flutter Mane Mystical Fire vs. 252 HP / 252+ SpD Assault Vest Rillaboom: 168-198 (41.5 - 49%) -- guaranteed 3HKO after Grassy Terrain recovery

View Flutter Mane counters → Teams with Flutter Mane →

Indeedee-F

PsychicNormal SOFT CHECK

21.067

17.8% dies 8.33%

DAMAGE CALCPsychic Terrain

252+ SpA Indeedee-F Psyshock vs. 252 HP / 0 Def Rillaboom in Psychic Terrain: 165-195 (40.8 - 48.2%) -- guaranteed 3HKO

View Indeedee-F counters → Teams with Indeedee-F →

Ranked #3 with 23.42% usage. Sorted by reliability score.