Is Flutter Mane viable in Gen 9 VGC 2026 Regulation F Best of 3?

Flutter Mane is ranked #3 in Gen 9 VGC 2026 Regulation F Best of 3 with 45.72% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Flutter Mane in Gen 9 VGC 2026 Regulation F Best of 3?

Urshifu-Rapid-Strike has the strongest conservative score in this observed Feb 2026 - Apr 2026 sample. The target was knocked out or switched out in 54.1% of 143.46458267270347 relevant encounters. Standard error is 4.2 points. Sets and switch conditions can change the result.

How are Flutter Mane matchup checks ranked in Gen 9 VGC 2026 Regulation F Best of 3?

They are ranked by p minus four standard errors. Here, p is the observed fraction of relevant encounters where Flutter Mane was knocked out or switched out. This is not a set-specific battle guarantee.

Flutter Mane counters

Gen 9 VGC 2026 Regulation F Best of 3 · Sorted by p − 4 standard errors · Smogon source period Feb 2026 - Apr 2026 · Generated 2026-05-27

#0987 Flutter Mane

GhostFairy

USAGE 45.7% #3

BASE STATS

HP 55

ATK 55

DEF 55

SPA 135

SPD 135

SPE 135

BST570

TYPE MATCHUPS

2×

GhostSteel

¼×

Bug

0×

NormalFightingDragon

Moves

Moonblast 99.3% Shadow Ball 58.1% Icy Wind 56.7% Dazzling Gleam 49.8% Protect 41.6% Taunt 30.8% Thunder Wave 22.7% Power Gem 19.1%

Items

Booster Energy 58.8% Choice Specs 37.9% Sitrus Berry 1.0% Pixie Plate 0.8% Fairy Feather 0.6% Focus Sash 0.6% Life Orb 0.2% Aguav Berry 0.0%

Tera Types

Fairy 67.3% Grass 23.8% Water 5.2% Dragon 1.4% Fire 0.9% Stellar 0.5% Steel 0.5% Dark 0.2%

Common Teammates

Incineroar63.5%

Urshifu-Rapid-Strike49.0%

Raging Bolt39.7%

Amoonguss30.3%

Tornadus28.5%

Ogerpon-Hearthflame27.1%

Landorus25.5%

Ogerpon-Wellspring23.5%

Leading observed checks

Open a matchup for a separate set-based damage estimate, or browse uploaded teams with both Pokémon.

Checks & Counters

Observed target KO or switch rate is upstream p: the fraction of relevant encounters where the target was knocked out or switched out. Standard error is upstream d. The conservative score is p − 4d. These ladder observations do not prove a set-specific counter.

How to read this table

Use encounter count and standard error to judge the sample. Damage estimates below use inferred sets and remain separate from the observed ladder metric.

# Checker Encounters Conservative score Target KO or switch rate

Urshifu-Rapid-Strike

FightingWater SOFT CHECK View matchup

143.465

37.5

54.1% Standard error 4.16 points

DAMAGE CALC

252+ Atk Mystic Water Urshifu-Rapid-Strike Surging Strikes (3 hits) vs. 252 HP / 0 Def Flutter Mane on a critical hit: 207-246 (127.7 - 151.8%) -- guaranteed OHKO

View Urshifu-Rapid-Strike counters →

Rillaboom

Grass OFFENSIVE CHECK View matchup

72.87

32.3

55.6% Standard error 5.82 points

DAMAGE CALCGrassy Terrain

252+ Atk Rillaboom Wood Hammer vs. 252 HP / 0 Def Flutter Mane in Grassy Terrain: 228-268 (140.7 - 165.4%) -- guaranteed OHKO

View Rillaboom counters →

Urshifu

FightingDark OFFENSIVE CHECK View matchup

28.578

30.7

66.1% Standard error 8.85 points

DAMAGE CALC

252+ Atk Choice Band Urshifu Wicked Blow vs. 252 HP / 0 Def Flutter Mane on a critical hit: 255-301 (157.4 - 185.8%) -- guaranteed OHKO

View Urshifu counters →

Chien-Pao

DarkIce OFFENSIVE CHECK View matchup

39.965

27.4

58.6% Standard error 7.79 points

DAMAGE CALC

252+ Atk Sword of Ruin Chien-Pao Icicle Crash vs. 252 HP / 0 Def Flutter Mane: 162-192 (100 - 118.5%) -- guaranteed OHKO

View Chien-Pao counters →

Incineroar

FireDark SOFT CHECK View matchup

190.512

27.4

41.7% Standard error 3.57 points

DAMAGE CALC

252+ Atk Incineroar Flare Blitz vs. 252 HP / 0 Def Flutter Mane: 165-195 (101.8 - 120.3%) -- guaranteed OHKO

View Incineroar counters →

Ogerpon-Hearthflame

GrassFire SOFT CHECK View matchup

49.693

26.3

54.6% Standard error 7.06 points

DAMAGE CALC

252+ Atk Hearthflame Mask Ogerpon-Hearthflame Wood Hammer vs. 252 HP / 0 Def Flutter Mane: 204-241 (125.9 - 148.7%) -- guaranteed OHKO

View Ogerpon-Hearthflame counters →

Landorus

GroundFlying SOFT CHECK View matchup

61.804

25.0

50.4% Standard error 6.36 points

DAMAGE CALC

252+ SpA Life Orb Sheer Force Landorus Sandsear Storm vs. 252 HP / 252+ SpD Flutter Mane: 87-103 (53.7 - 63.5%) -- guaranteed 2HKO

View Landorus counters →

Dragonite

DragonFlying SOFT CHECK View matchup

45.503

24.4

54.0% Standard error 7.39 points

DAMAGE CALC

252+ Atk Choice Band Dragonite Iron Head vs. 252 HP / 0 Def Flutter Mane: 246-290 (151.8 - 179%) -- guaranteed OHKO

View Dragonite counters →

Flutter Mane

GhostFairy SOFT CHECK View matchup

93.086

23.5

44.1% Standard error 5.15 points

DAMAGE CALC

252+ SpA Flutter Mane Shadow Ball vs. 252 HP / 252+ SpD Flutter Mane: 92-110 (56.7 - 67.9%) -- guaranteed 2HKO

View Flutter Mane counters →

Amoonguss

GrassPoison SOFT CHECK View matchup

63.485

22.1

47.2% Standard error 6.27 points

DAMAGE CALC

252+ SpA Amoonguss Leaf Storm vs. 252 HP / 252+ SpD Flutter Mane: 54-64 (33.3 - 39.5%) -- guaranteed 3HKO

View Amoonguss counters →

Raging Bolt

ElectricDragon SOFT CHECK View matchup

55.459

21.3

48.2% Standard error 6.71 points

DAMAGE CALC

252+ SpA Raging Bolt Thunderbolt vs. 252 HP / 252+ SpD Flutter Mane: 51-61 (31.4 - 37.6%) -- 88.4% chance to 3HKO

View Raging Bolt counters →

Chi-Yu

DarkFire OFFENSIVE CHECK View matchup

25.528

20.4

59.3% Standard error 9.72 points

DAMAGE CALC

252+ SpA Beads of Ruin Chi-Yu Overheat vs. 252 HP / 252+ SpD Flutter Mane: 99-117 (61.1 - 72.2%) -- guaranteed 2HKO

View Chi-Yu counters →

Ogerpon-Wellspring

GrassWater SOFT CHECK View matchup

50.307

19.3

47.4% Standard error 7.04 points

DAMAGE CALC

252+ Atk Wellspring Mask Ogerpon-Wellspring Wood Hammer vs. 252 HP / 0 Def Flutter Mane: 204-241 (125.9 - 148.7%) -- guaranteed OHKO

View Ogerpon-Wellspring counters →

Gholdengo

SteelGhost SOFT CHECK View matchup

43.36

18.4

48.8% Standard error 7.59 points

DAMAGE CALC

252+ SpA Metal Coat Gholdengo Make It Rain vs. 252 HP / 252+ SpD Flutter Mane: 162-192 (100 - 118.5%) -- guaranteed OHKO

View Gholdengo counters →

Regidrago

Dragon SOFT CHECK View matchup

29.633

11.1

47.8% Standard error 9.18 points

DAMAGE CALC

252+ SpA Life Orb Regidrago Earth Power vs. 252 HP / 252+ SpD Flutter Mane: 36-44 (22.2 - 27.1%) -- 43.3% chance to 4HKO

View Regidrago counters →

Whimsicott

GrassFairy SOFT CHECK View matchup

22.849

8.0

49.9% Standard error 10.46 points

DAMAGE CALC

252+ SpA Whimsicott Moonblast vs. 252 HP / 252+ SpD Flutter Mane: 37-45 (22.8 - 27.7%) -- 60.7% chance to 4HKO

View Whimsicott counters →

Tatsugiri

DragonWater SOFT CHECK View matchup

26.583

7.4

46.1% Standard error 9.67 points

DAMAGE CALC

252+ SpA Tatsugiri Muddy Water vs. 252 HP / 252+ SpD Flutter Mane: 48-57 (29.6 - 35.1%) -- 10.3% chance to 3HKO

View Tatsugiri counters →

Iron Crown

SteelPsychic SOFT CHECK View matchup

20.901

4.9

48.7% Standard error 10.93 points

DAMAGE CALC

252+ SpA Iron Crown Tachyon Cutter (2 hits) vs. 252 HP / 252+ SpD Flutter Mane: 108-132 (66.6 - 81.4%) -- guaranteed 2HKO

View Iron Crown counters →

Tornadus

Flying SOFT CHECK View matchup

44.454

4.8

33.0% Standard error 7.05 points

DAMAGE CALC

252+ SpA Tornadus Bleakwind Storm vs. 252 HP / 252+ SpD Flutter Mane: 54-64 (33.3 - 39.5%) -- guaranteed 3HKO

View Tornadus counters →

Indeedee-F

PsychicNormal SOFT CHECK View matchup

30.252

2.9

38.2% Standard error 8.83 points

DAMAGE CALCPsychic Terrain

252+ SpA Indeedee-F Psychic vs. 252 HP / 252+ SpD Flutter Mane in Psychic Terrain: 52-63 (32 - 38.8%) -- 97.9% chance to 3HKO

View Indeedee-F counters →

Ursaluna

GroundNormal SOFT CHECK View matchup

21.426

2.8

45.9% Standard error 10.76 points

DAMAGE CALC

252+ Atk Ursaluna Headlong Rush vs. 252 HP / 0 Def Flutter Mane: 190-225 (117.2 - 138.8%) -- guaranteed OHKO

View Ursaluna counters →

Ranked #3 with 45.72% usage. Sorted by conservative score.