Is Charizard-Mega-Y viable in Gen 9 Champions VGC 2026 Reg M-B Best of 3?

Charizard-Mega-Y is ranked #4 in Gen 9 Champions VGC 2026 Reg M-B Best of 3 with 38.81% usage according to Smogon May 2026 - Jul 2026 data.

What beats Charizard-Mega-Y in Gen 9 Champions VGC 2026 Reg M-B Best of 3?

Garchomp has the strongest conservative score in this observed May 2026 - Jul 2026 sample. The target was knocked out or switched out in 56.7% of 194.77330971961499 relevant encounters. Standard error is 4.7 points. Sets and switch conditions can change the result.

How are Charizard-Mega-Y matchup checks ranked in Gen 9 Champions VGC 2026 Reg M-B Best of 3?

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

Charizard-Mega-Y counters

Gen 9 Champions VGC 2026 Reg M-B Best of 3 · Sorted by p − 4 standard errors · Smogon source period May 2026 - Jul 2026 · Generated 2026-08-05

#0006 Charizard-Mega-Y

FireFlying

USAGE 38.8% #4

BASE STATS

HP 78

ATK 104

DEF 78

SPA 159

SPD 115

SPE 100

BST634

TYPE MATCHUPS

4×

Rock

2×

WaterElectric

½×

FireFightingSteelFairy

¼×

GrassBug

0×

Ground

Moves

Protect 100.0% Heat Wave 99.9% Weather Ball 98.8% Solar Beam 83.8% Helping Hand 7.2% Ancient Power 5.2% Hurricane 3.7% Overheat 0.6%

Items

Charizardite Y 100.0%

Common Teammates

Leading observed checks

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

Team core to explore

Charizard-Mega-Y + Basculegion 49.1% teammate usage Explore teams →

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

Garchomp

DragonGround OFFENSIVE CHECK View matchup

194.773

37.9

56.7% Standard error 4.72 points

DAMAGE CALCSun

252+ Atk Life Orb Garchomp Rock Slide vs. 252 HP / 0 Def Charizard-Mega-Y: 302-359 (163.2 - 194%) -- guaranteed OHKO

View Garchomp counters →

Sneasler

FightingPoison SOFT CHECK View matchup

107.974

30.9

50.1% Standard error 4.81 points

DAMAGE CALCSun

252+ Atk Sneasler Gunk Shot vs. 252 HP / 0 Def Charizard-Mega-Y: 138-163 (74.5 - 88.1%) -- guaranteed 2HKO

View Sneasler counters → Teams with Sneasler →

Charizard-Mega-Y

FireFlying SOFT CHECK View matchup

168.233

28.1

43.3% Standard error 3.82 points

DAMAGE CALCSun

252+ SpA Charizard-Mega-Y Ancient Power vs. 252 HP / 252+ SpD Charizard-Mega-Y: 116-140 (62.7 - 75.6%) -- guaranteed 2HKO

View Charizard-Mega-Y counters →

Incineroar

FireDark SOFT CHECK View matchup

307.816

27.3

42.0% Standard error 3.68 points

DAMAGE CALCSun

252+ Atk Incineroar Flare Blitz vs. 252 HP / 0 Def Charizard-Mega-Y in Sun: 95-112 (51.3 - 60.5%) -- guaranteed 2HKO

View Incineroar counters → Teams with Incineroar →

Kingambit

DarkSteel SOFT CHECK View matchup

161.698

26.2

47.0% Standard error 5.20 points

DAMAGE CALCSun

252+ Atk Black Glasses Kingambit Kowtow Cleave vs. 252 HP / 0 Def Charizard-Mega-Y: 120-142 (64.8 - 76.7%) -- guaranteed 2HKO

View Kingambit counters → Teams with Kingambit →

Venusaur

GrassPoison SOFT CHECK View matchup

61.865

24.6

50.1% Standard error 6.36 points

DAMAGE CALCSun

252+ SpA Life Orb Venusaur Sludge Bomb vs. 252 HP / 252+ SpD Charizard-Mega-Y: 62-74 (33.5 - 40%) -- guaranteed 3HKO

View Venusaur counters →

Floette-Mega

Fairy SOFT CHECK View matchup

62.116

24.6

50.0% Standard error 6.34 points

DAMAGE CALCSun

252+ SpA Floette-Mega Light of Ruin vs. 252 HP / 252+ SpD Charizard-Mega-Y: 49-58 (26.4 - 31.3%) -- guaranteed 4HKO

View Floette-Mega counters →

Basculegion

WaterGhost SOFT CHECK View matchup

137.304

22.6

45.0% Standard error 5.60 points

DAMAGE CALCSun

252+ Atk Mystic Water Adaptability Basculegion Wave Crash vs. 252 HP / 0 Def Charizard-Mega-Y in Sun: 200-236 (108.1 - 127.5%) -- guaranteed OHKO

View Basculegion counters → Teams with Basculegion →

Farigiraf

NormalPsychic SOFT CHECK View matchup

46.414

21.8

51.1% Standard error 7.34 points

DAMAGE CALCSun

252+ SpA Farigiraf Thunderbolt vs. 252 HP / 252+ SpD Charizard-Mega-Y: 68-80 (36.7 - 43.2%) -- guaranteed 3HKO

View Farigiraf counters → Teams with Farigiraf →

Maushold

Normal OFFENSIVE CHECK View matchup

23.181

19.5

60.2% Standard error 10.17 points

DAMAGE CALCSun

252+ Atk Maushold Population Bomb (10 hits) vs. 252 HP / 0 Def Charizard-Mega-Y: 160-210 (86.4 - 113.5%) -- approx. 56.6% chance to OHKO

View Maushold counters →

Sylveon

Fairy SOFT CHECK View matchup

41.027

16.2

47.4% Standard error 7.80 points

DAMAGE CALCSun

252+ SpA Fairy Feather Pixilate Sylveon Hyper Beam vs. 252 HP / 252+ SpD Charizard-Mega-Y: 59-70 (31.8 - 37.8%) -- 93.2% chance to 3HKO

View Sylveon counters →

Whimsicott

GrassFairy SOFT CHECK View matchup

107.976

15.4

40.7% Standard error 6.33 points

DAMAGE CALCSun

252+ SpA Whimsicott Moonblast vs. 252 HP / 252+ SpD Charizard-Mega-Y: 21-25 (11.3 - 13.5%) -- possible 8HKO

View Whimsicott counters → Teams with Whimsicott →

Pelipper

WaterFlying SOFT CHECK View matchup

139.823

15.2

37.5% Standard error 5.58 points

DAMAGE CALCRain

252+ SpA Pelipper Weather Ball (100 BP Water) vs. 252 HP / 252+ SpD Charizard-Mega-Y in Rain: 152-180 (82.1 - 97.2%) -- guaranteed 2HKO

View Pelipper counters →

Staraptor-Mega

FightingFlying SOFT CHECK View matchup

35.87

12.3

45.5% Standard error 8.31 points

DAMAGE CALCSun

252+ Atk Staraptor-Mega Brave Bird vs. 252 HP / 0 Def Charizard-Mega-Y: 145-172 (78.3 - 92.9%) -- guaranteed 2HKO

View Staraptor-Mega counters →

Delphox-Mega

FirePsychic SOFT CHECK View matchup

36.295

11.7

44.7% Standard error 8.25 points

DAMAGE CALCSun

252+ SpA Delphox-Mega Psyshock vs. 252 HP / 0 Def Charizard-Mega-Y: 108-127 (58.3 - 68.6%) -- guaranteed 2HKO

View Delphox-Mega counters →

Tyranitar-Mega

RockDark SOFT CHECK View matchup

32.594

10.6

45.5% Standard error 8.72 points

DAMAGE CALCSand

252+ Atk Tyranitar-Mega Rock Slide vs. 252 HP / 0 Def Charizard-Mega-Y: 408-484 (220.5 - 261.6%) -- guaranteed OHKO

View Tyranitar-Mega counters →

Aerodactyl-Mega

RockFlying SOFT CHECK View matchup

26.675

10.1

48.8% Standard error 9.68 points

DAMAGE CALCSun

252+ Atk Aerodactyl-Mega Rock Slide vs. 252 HP / 0 Def Charizard-Mega-Y: 360-424 (194.5 - 229.1%) -- guaranteed OHKO

View Aerodactyl-Mega counters →

Toxapex

PoisonWater SOFT CHECK View matchup

34.152

9.3

43.2% Standard error 8.48 points

DAMAGE CALCSun

252+ SpA Toxapex Infestation vs. 252 HP / 252+ SpD Charizard-Mega-Y: 1-1 (0.5 - 0.5%) -- guaranteed 8HKO after trapping damage

View Toxapex counters →

Raichu-Mega-Y

Electric SOFT CHECK View matchup

23.182

8.8

50.3% Standard error 10.38 points

DAMAGE CALCSun

252+ SpA Raichu-Mega-Y Zap Cannon vs. 252 HP / 252+ SpD Charizard-Mega-Y: 174-206 (94 - 111.3%) -- 68.8% chance to OHKO

View Raichu-Mega-Y counters →

Grimmsnarl

DarkFairy SOFT CHECK View matchup

67.61

7.2

29.3% Standard error 5.53 points

DAMAGE CALCSun

252+ Atk Grimmsnarl Sucker Punch vs. 252 HP / 0 Def Charizard-Mega-Y: 76-91 (41 - 49.1%) -- guaranteed 3HKO

View Grimmsnarl counters →

Archaludon

SteelDragon SOFT CHECK View matchup

67.376

6.8

28.8% Standard error 5.52 points

DAMAGE CALCSun

+1 252+ SpA Archaludon Electro Shot vs. 252 HP / 252+ SpD Charizard-Mega-Y: 156-184 (84.3 - 99.4%) -- guaranteed 2HKO

View Archaludon counters →

Sinistcha

GrassGhost SOFT CHECK View matchup

78.581

6.0

25.7% Standard error 4.93 points

DAMAGE CALCSun

252+ SpA Sinistcha Shadow Ball vs. 252 HP / 252+ SpD Charizard-Mega-Y: 48-57 (25.9 - 30.8%) -- guaranteed 4HKO

View Sinistcha counters → Teams with Sinistcha →

Venusaur-Mega

GrassPoison SOFT CHECK View matchup

27.493

4.7

42.4% Standard error 9.42 points

DAMAGE CALCSun

252+ SpA Venusaur-Mega Sludge Bomb vs. 252 HP / 252+ SpD Charizard-Mega-Y: 54-64 (29.1 - 34.5%) -- 6% chance to 3HKO

View Venusaur-Mega counters →

Froslass-Mega

IceGhost SOFT CHECK View matchup

23.953

3.4

44.0% Standard error 10.14 points

DAMAGE CALCSnow

252+ SpA Froslass-Mega Thunderbolt vs. 252 HP / 252+ SpD Charizard-Mega-Y: 78-94 (42.1 - 50.8%) -- 2% chance to 2HKO

View Froslass-Mega counters →

Gholdengo

SteelGhost SOFT CHECK View matchup

25.927

1.0

39.4% Standard error 9.60 points

DAMAGE CALCSun

252+ SpA Life Orb Gholdengo Power Gem vs. 252 HP / 252+ SpD Charizard-Mega-Y: 177-213 (95.6 - 115.1%) -- 81.3% chance to OHKO

View Gholdengo counters → Teams with Gholdengo →

Ninetales-Alola

IceFairy SOFT CHECK View matchup

28.797

-3.1

31.6% Standard error 8.66 points

DAMAGE CALCSnow

252+ SpA Never-Melt Ice Ninetales-Alola Blizzard vs. 252 HP / 252+ SpD Charizard-Mega-Y: 60-72 (32.4 - 38.9%) -- 98.5% chance to 3HKO

View Ninetales-Alola counters → Teams with Ninetales-Alola →

Swampert-Mega

WaterGround SOFT CHECK View matchup

21.581

-7.1

33.6% Standard error 10.17 points

DAMAGE CALCSun

252+ Atk Swampert-Mega Wave Crash vs. 252 HP / 0 Def Charizard-Mega-Y in Sun: 152-180 (82.1 - 97.2%) -- guaranteed 2HKO

View Swampert-Mega counters →

Politoed

Water SOFT CHECK View matchup

26.209

-7.4

27.5% Standard error 8.72 points

DAMAGE CALCRain

252+ SpA Politoed Weather Ball (100 BP Water) vs. 252 HP / 252+ SpD Charizard-Mega-Y in Rain: 146-174 (78.9 - 94%) -- guaranteed 2HKO

View Politoed counters →

Gengar-Mega

GhostPoison SOFT CHECK View matchup

22.874

-9.8

27.7% Standard error 9.35 points

DAMAGE CALCSun

252+ SpA Gengar-Mega Sludge Bomb vs. 252 HP / 252+ SpD Charizard-Mega-Y: 67-81 (36.2 - 43.7%) -- guaranteed 3HKO

View Gengar-Mega counters →

Ranked #4 with 38.81% usage. Sorted by conservative score.