Is Rillaboom viable in Gen 8 National Dex?

Rillaboom is ranked #19 in Gen 8 National Dex with 9.68% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Rillaboom in Gen 8 National Dex?

The best counter for Rillaboom in Gen 8 National Dex is Zapdos with a 56.8% win rate when they meet. Based on Smogon's Feb 2026 - Apr 2026 usage data, the top Pokémon that beat Rillaboom include Zapdos, Tapu Koko.

What is the best counter for Rillaboom in Gen 8 National Dex?

Zapdos is the best counter for Rillaboom in Gen 8 National Dex, KOing or forcing it out in 56.8% of their encounters.

Rillaboom counters

Gen 8 National Dex · Sorted by reliability score · Smogon · Feb 2026 - Apr 2026

#0812 Rillaboom

Grass

USAGE 9.7% #19

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 99.8% Knock Off 92.1% U-turn 78.9% Superpower 44.6% Wood Hammer 41.3% Swords Dance 16.8% Drain Punch 13.6% High Horsepower 9.3%

Items

Choice Band 73.8% Leftovers 8.6% Life Orb 8.3% Assault Vest 5.1% Choice Scarf 1.4% Terrain Extender 1.0% Fightinium Z 0.8% Miracle Seed 0.2%

Abilities

Grassy Surge100.0%Overgrow0.0%

Common Teammates

Landorus-Therian20.6%

Blissey18.0%

Tapu Fini16.5%

Garchomp14.9%

Checks & Counters

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

# Checker Encounters Reliability KO Rate

Zapdos

ElectricFlying OFFENSIVE CHECK

22.967

56.8% dies 10.34%

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 →

Tapu Koko

ElectricFairy SOFT CHECK

20.316

22.9% dies 9.33%

DAMAGE CALCElectric Terrain

252+ SpA Choice Specs Tapu Koko Hidden Power Ice vs. 252 HP / 252+ SpD Rillaboom: 158-186 (39.1 - 46%) -- guaranteed 3HKO

View Tapu Koko counters → Teams with Tapu Koko →

Ranked #19 with 9.68% usage. Sorted by reliability score.