Is Mewtwo-Mega-X viable in Gen 6 Pure Hackmons?

Mewtwo-Mega-X is ranked #1 in Gen 6 Pure Hackmons with 71.91% usage according to Smogon Feb 2026 - Apr 2026 data.

What beats Mewtwo-Mega-X in Gen 6 Pure Hackmons?

The best counter for Mewtwo-Mega-X in Gen 6 Pure Hackmons is Diancie-Mega with a 68.3% win rate when they meet. Based on Smogon's Feb 2026 - Apr 2026 usage data, the top Pokémon that beat Mewtwo-Mega-X include Diancie-Mega, Rayquaza-Mega, Manectric-Mega, Mewtwo-Mega-X, Slaking.

What is the best counter for Mewtwo-Mega-X in Gen 6 Pure Hackmons?

Diancie-Mega is the best counter for Mewtwo-Mega-X in Gen 6 Pure Hackmons, KOing or forcing it out in 68.3% of their encounters.

Mewtwo-Mega-X counters

Gen 6 Pure Hackmons · Sorted by reliability score · Smogon · Feb 2026 - Apr 2026

#0150 Mewtwo-Mega-X

PsychicFighting

USAGE 71.9% #1

ABILITYHuge Power

BASE STATS

HP 106

ATK 190

DEF 100

SPA 154

SPD 100

SPE 130

BST780

TYPE MATCHUPS

2×

FlyingGhostFairy

½×

FightingRock

Moves

Play Rough 31.4% Shadow Sneak 29.8% Sacred Fire 28.9% Thousand Arrows 28.7% Mach Punch 26.9% Gear Grind 20.0% Poison Jab 19.5% Ice Shard 16.5%

Items

Lum Berry 18.6% Shed Shell 17.7% Expert Belt 12.1% Life Orb 11.6% Focus Sash 11.4% Choice Scarf 7.7% Scope Lens 3.4% Meadow Plate 3.4%

Abilities

Huge Power57.9%Wonder Guard12.2%Shadow Tag7.8%Mold Breaker7.3%Pure Power5.8%No Guard5.0%Magic Bounce2.0%Teravolt0.8%

Common Teammates

Checks & Counters

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

# Checker Encounters Reliability KO Rate

Diancie-Mega

RockFairy OFFENSIVE CHECK

23.304

68.3% dies 9.64%

DAMAGE CALC

252+ Atk Pixilate Diancie-Mega Extreme Speed vs. 252 HP / 0 Def Mewtwo-Mega-X: 438-516 (105.2 - 124%) -- guaranteed OHKO

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

Rayquaza-Mega

DragonFlying SOFT CHECK

209.339

54.7% dies 4.83%

DAMAGE CALC

0- Atk Rayquaza-Mega Dragon Ascent vs. 252 HP / 0 Def Mewtwo-Mega-X: 390-462 (93.7 - 111%) -- 62.5% chance to OHKO

View Rayquaza-Mega counters → Teams with Rayquaza-Mega →

Manectric-Mega

Electric SOFT CHECK

74.277

48.6% dies 8.03%

DAMAGE CALC

252+ SpA Manectric-Mega Steam Eruption vs. 252 HP / 252+ SpD Mewtwo-Mega-X: 98-116 (23.5 - 27.8%) -- 85.5% chance to 4HKO

View Manectric-Mega counters → Teams with Manectric-Mega →

Mewtwo-Mega-X

PsychicFighting SOFT CHECK

277.495

47.6% dies 4.22%

DAMAGE CALC

252+ Atk Huge Power Mewtwo-Mega-X Play Rough vs. 252 HP / 0 Def Mewtwo-Mega-X: 574-676 (137.9 - 162.5%) -- guaranteed OHKO

View Mewtwo-Mega-X counters → Teams with Mewtwo-Mega-X →

Slaking

Normal SOFT CHECK

137.319

44.0% dies 5.74%

DAMAGE CALC

252+ Atk Slaking Extreme Speed vs. 252 HP / 0 Def Mewtwo-Mega-X: 168-198 (40.3 - 47.5%) -- guaranteed 3HKO

View Slaking counters → Teams with Slaking →

Blissey

Normal SOFT CHECK

136.011

43.7% dies 5.80%

Deoxys-Speed

Psychic SOFT CHECK

109.532

43.2% dies 6.50%

Groudon-Primal

GroundFire SOFT CHECK

140.459

41.8% dies 5.82%

DAMAGE CALC

252+ Atk Groudon-Primal V-create vs. 252 HP / 0 Def Mewtwo-Mega-X: 412-486 (99 - 116.8%) -- 93.8% chance to OHKO

View Groudon-Primal counters → Teams with Groudon-Primal →

Regigigas

Normal SOFT CHECK

80.297

41.3% dies 7.51%

DAMAGE CALC

252+ Atk Regigigas Extreme Speed vs. 252 HP / 0 Def Mewtwo-Mega-X: 168-198 (40.3 - 47.5%) -- guaranteed 3HKO

View Regigigas counters → Teams with Regigigas →

Chansey

Normal SOFT CHECK

66.932

37.9% dies 8.18%

DAMAGE CALC

Chansey Final Gambit vs. 252 HP Mewtwo-Mega-X: 641-641 (154 - 154%) -- guaranteed OHKO

View Chansey counters → Teams with Chansey →

Talonflame

FireFlying SOFT CHECK

21.459

36.4% dies 10.38%

DAMAGE CALC

0- Atk Talonflame Brave Bird vs. 252 HP / 0 Def Mewtwo-Mega-X: 198-234 (47.5 - 56.2%) -- 80.9% chance to 2HKO

View Talonflame counters → Teams with Talonflame →

Beedrill-Mega

BugPoison SOFT CHECK

43.354

34.8% dies 9.81%

DAMAGE CALC

252+ Atk Beedrill-Mega Play Rough vs. 252 HP / 0 Def Mewtwo-Mega-X: 240-284 (57.6 - 68.2%) -- guaranteed 2HKO

View Beedrill-Mega counters → Teams with Beedrill-Mega →

Dialga

SteelDragon SOFT CHECK

21.348

34.4% dies 10.28%

DAMAGE CALC

252+ SpA Adamant Orb Dialga Doom Desire vs. 252 HP / 252+ SpD Mewtwo-Mega-X: 241-285 (57.9 - 68.5%) -- guaranteed 2HKO

View Dialga counters → Teams with Dialga →

Kyogre-Primal

Water SOFT CHECK

104.595

33.4% dies 6.45%

DAMAGE CALC

252+ SpA Kyogre-Primal Scald vs. 252 HP / 252+ SpD Mewtwo-Mega-X: 133-157 (31.9 - 37.7%) -- 93% chance to 3HKO

View Kyogre-Primal counters → Teams with Kyogre-Primal →

Xerneas

Fairy SOFT CHECK

150.299

32.6% dies 5.39%

DAMAGE CALC

252+ SpA Xerneas Moonblast vs. 252 HP / 252+ SpD Mewtwo-Mega-X: 248-294 (59.6 - 70.6%) -- guaranteed 2HKO

View Xerneas counters → Teams with Xerneas →

Gengar-Mega

GhostPoison SOFT CHECK

49.985

32.5% dies 9.21%

DAMAGE CALC

252+ SpA Spooky Plate Gengar-Mega Judgment vs. 252 HP / 252+ SpD Mewtwo-Mega-X: 380-450 (91.3 - 108.1%) -- 50% chance to OHKO

View Gengar-Mega counters → Teams with Gengar-Mega →

Giratina

GhostDragon SOFT CHECK

196.95

32.0% dies 4.66%

Gyarados-Mega

WaterDark SOFT CHECK

127.023

28.6% dies 5.65%

DAMAGE CALC

0- Atk Huge Power Gyarados-Mega Knock Off (97.5 BP) vs. 252 HP / 0 Def Mewtwo-Mega-X: 274-324 (65.8 - 77.8%) -- guaranteed 2HKO

View Gyarados-Mega counters → Teams with Gyarados-Mega →

Scizor-Mega

BugSteel SOFT CHECK

45.246

25.5% dies 6.48%

DAMAGE CALC

252+ Atk Scizor-Mega Gear Grind (2 hits) vs. 252 HP / 0 Def Mewtwo-Mega-X: 200-236 (48 - 56.7%) -- 95.4% chance to 2HKO

View Scizor-Mega counters → Teams with Scizor-Mega →

Swampert-Mega

WaterGround SOFT CHECK

43.831

24.2% dies 6.47%

DAMAGE CALC

252+ Atk Swampert-Mega Thousand Arrows vs. 252 HP / 0 Def Mewtwo-Mega-X: 180-213 (43.2 - 51.2%) -- 5.1% chance to 2HKO

View Swampert-Mega counters → Teams with Swampert-Mega →

Aegislash

SteelGhost SOFT CHECK

44.154

19.5% dies 8.43%

Audino-Mega

NormalFairy SOFT CHECK

38.054

18.0% dies 6.22%

Arceus

Normal SOFT CHECK

30.368

15.6% dies 6.58%

Ferrothorn

GrassSteel SOFT CHECK

20.917

12.0% dies 7.10%

DAMAGE CALC

252+ Atk Ferrothorn Gyro Ball (54 BP) vs. 252 HP / 0 Def Mewtwo-Mega-X: 78-93 (18.7 - 22.3%) -- possible 5HKO

View Ferrothorn counters → Teams with Ferrothorn →

Ranked #1 with 71.91% usage. Sorted by reliability score.