Is Mewtwo viable in Gen 9 Ubers?

Mewtwo is ranked #46 in Gen 9 Ubers with 1.32% usage according to Smogon Apr 2026 - Jun 2026 data.

What beats Mewtwo in Gen 9 Ubers?

The best counter for Mewtwo in Gen 9 Ubers is Lunala with a 73.8% win rate when they meet. Based on Smogon's Apr 2026 - Jun 2026 usage data, the top Pokémon that beat Mewtwo include Lunala, Zacian-Crowned, Arceus, Necrozma-Dusk-Mane, Kyogre.

What is the best counter for Mewtwo in Gen 9 Ubers?

Lunala is the best counter for Mewtwo in Gen 9 Ubers, KOing or forcing it out in 73.8% of their encounters.

Mewtwo counters

Gen 9 Ubers · Sorted by reliability score · Smogon · Apr 2026 - Jun 2026

#0150 Mewtwo

Psychic

USAGE 1.3% #46

ABILITYPressure

BASE STATS

HP 106

ATK 110

DEF 90

SPA 154

SPD 90

SPE 130

BST680

TYPE MATCHUPS

2×

BugGhostDark

½×

FightingPsychic

Moves

Psystrike 97.2% Nasty Plot 57.7% Fire Blast 46.4% Ice Beam 35.0% Taunt 33.1% Shadow Ball 24.4% Thunderbolt 18.1% Aura Sphere 14.2%

Items

Life Orb 40.5% Focus Sash 14.5% Heavy-Duty Boots 13.0% Choice Specs 9.8% Choice Scarf 9.2% Leftovers 8.1% Expert Belt 1.0% Salac Berry 0.9%

Abilities

Pressure77.1%Unnerve22.9%

Tera Types

Ghost 31.9% Fire 29.9% Psychic 11.5% Steel 9.0% Dark 7.9% Fairy 4.4% Fighting 3.2% Stellar 0.9%

Common Teammates

Koraidon44.6%

Deoxys-Attack37.9%

Necrozma-Dusk-Mane35.6%

Checks & Counters

Reliability ranks observed matchups; KO rate is how often the checker knocked out or forced out the target. “Checker faints” reports the checker's own observed death rate. Categories use matchup reliability plus offensive and defensive base stats.

How to read this table

Use encounter count to judge sample size. A high-reliability check with a modest KO rate can still be useful when it consistently forces switches or limits the target.

# Checker Encounters Reliability KO Rate

Lunala

PsychicGhost OFFENSIVE CHECK

28.549

73.8% checker faints 8.23%

DAMAGE CALC

252+ SpA Lunala Moongeist Beam vs. 252 HP / 252+ SpD Mewtwo: 288-342 (69.2 - 82.2%) -- guaranteed 2HKO

View Lunala counters → Teams with Lunala →

Zacian-Crowned

FairySteel OFFENSIVE CHECK

29.046

71.7% checker faints 8.36%

DAMAGE CALC

+1 252+ Atk Zacian-Crowned Crunch vs. 252 HP / 0 Def Mewtwo: 350-412 (84.1 - 99%) -- guaranteed 2HKO

View Zacian-Crowned counters → Teams with Zacian-Crowned →

Arceus

Normal DEFENSIVE COUNTER

20.807

60.1% checker faints 10.74%

DAMAGE CALC

252+ SpA Life Orb Mewtwo Psystrike vs. 252 HP / 0 Def Arceus: 227-269 (51.1 - 60.5%) -- guaranteed 2HKO

View Arceus counters → Teams with Arceus →

Necrozma-Dusk-Mane

PsychicSteel OFFENSIVE CHECK

25.899

60.0% checker faints 9.63%

DAMAGE CALC

0- Atk Necrozma-Dusk-Mane Knock Off (97.5 BP) vs. 252 HP / 0 Def Mewtwo: 204-240 (49 - 57.6%) -- 96.1% chance to 2HKO

View Necrozma-Dusk-Mane counters → Teams with Necrozma-Dusk-Mane →

Kyogre

Water SOFT CHECK

60.95

48.1% checker faints 8.82%

DAMAGE CALCRain

252+ SpA Choice Specs Kyogre Water Spout (150 BP) vs. 252 HP / 252+ SpD Mewtwo in Rain: 519-612 (124.7 - 147.1%) -- guaranteed OHKO

View Kyogre counters → Teams with Kyogre →

Koraidon

FightingDragon SOFT CHECK

116.924

44.0% checker faints 7.74%

DAMAGE CALCSun

252+ Atk Orichalcum Pulse Koraidon Flare Blitz vs. 252 HP / 0 Def Mewtwo in Sun: 323-381 (77.6 - 91.5%) -- guaranteed 2HKO

View Koraidon counters → Teams with Koraidon →

Ho-Oh

FireFlying SOFT CHECK

73.634

29.6% checker faints 7.39%

DAMAGE CALC

252+ Atk Ho-Oh Brave Bird vs. 252 HP / 0 Def Mewtwo: 235-277 (56.4 - 66.5%) -- guaranteed 2HKO

View Ho-Oh counters → Teams with Ho-Oh →

Eternatus

PoisonDragon SOFT CHECK

24.627

20.6% checker faints 8.15%

DAMAGE CALC

+1 252+ SpA Eternatus Meteor Beam vs. 252 HP / 252+ SpD Mewtwo: 180-212 (43.2 - 50.9%) -- 3.9% chance to 2HKO

View Eternatus counters → Teams with Eternatus →

Ranked #46 with 1.32% usage. Sorted by reliability score.