Mega Mewtwo Y: Stats, Moves, Weakness & Abilities

Base stats

HP106181–213322–416

Atk150153–222274–438

Def7081–134130–262

SpA194192–270353–535

SpD120126–189220–372

Spe140144–211256–416

Total780#1 of 1,025

Ranges in Pokémon Champions at Lv 50: 0 Stat Points with a −10% Stat Alignment to 32 Stat Points with a +10% one (HP has no alignment).Ranges in the main games at Lv 100: 0 IV/EV with a hindering nature to 31 IV/252 EV with a helpful nature. EV yield: 3 SpA.

Stat calculatorChampions Stat Points & Stat Alignment, or EVs, IVs & nature

Calculate damage →

Type matchups

Weak to

2×

BugDarkGhost

Resists

½×

FightingPsychic

Takes normal damage from 13 types

NormalFlyingPoisonGroundRockSteelFireWaterGrassElectricIceDragonFairy

Speed tiers

The faster Pokémon moves first each turn, so knowing who you outspeed decides a lot of battles. These are its Speed values at Lv 50 in Pokémon Champions (base Speed 140); Scarf and Tailwind use the Max+ value.

Max+211Max192No SP160Min144Scarf316Tailwind422

At max Speed, Mega Mewtwo Y outspeeds 30 of the 30 most used Pokémon in Champions VGC on Showdown.

Smogon · Showdown Others at their most common Speed investment in Champions VGC (Reg M-C · Doubles, Sep 2026); Pokémon holding a Mega Stone are shown as their Mega.

Abilities

This Pokémon cannot fall asleep. Gaining this Ability while asleep cures it.
Everything about Insomnia →
Other Pokémon with Insomnia 17
Drowzee Hypno Hoothoot Noctowl Spinarak Ariados Murkrow Delibird Shuppet Banette Honchkrow Pumpkaboo Gourgeist Tarountula Spidops Capsakid Scovillain

Competitive

Smogon · Showdown On Showdown

Not used in the tracked Showdown formats this month.

Other Showdown formats Scarlet & Violet, with Tera

National DexUber

Evolution

Mewtwo doesn’t evolve, but in battle it can Mega Evolve.

#0150MewtwoPsychic
1. Mega Evolution, in battleholding Mewtwonite X
  #0150Mega Mewtwo XPsychicFighting
2. Mega Evolution, in battleholding Mewtwonite Y
  #0150Mega Mewtwo YPsychic

Moves

Game Sort Type

Level up 16

1Confusion10% chance to confuse the target.PsychicSpec50100%25

1DisableFor 4 turns, disables the target's last move used.NormalStatus—100%20

1Life DewHeals the user and its allies by 1/4 their max HP.WaterStatus——10

1SwiftThis move does not check accuracy. Hits foes.NormalSpec60—20

8Ancient Power10% chance to raise all stats by 1 (not acc/eva).RockSpec60100%5

16Psycho CutHigh critical hit ratio.PsychicPhys70100%20

24SafeguardFor 5 turns, protects user's party from status.NormalStatus——25

32AmnesiaRaises the user's Sp. Def by 2.PsychicStatus——20

40Aura SphereThis move does not check accuracy.FightingSpec80—20

48Psychic10% chance to lower the target's Sp. Def by 1.PsychicSpec90100%10

56Guard SwapSwaps Defense and Sp. Def changes with target.PsychicStatus——10

56Power SwapSwaps Attack and Sp. Atk stat stages with target.PsychicStatus——10

64MistFor 5 turns, protects user's party from stat drops.IceStatus——30

72PsystrikeDamages target based on Defense, not Sp. Def.PsychicSpec100100%10

80RecoverHeals the user by 50% of its max HP.NormalStatus——5

88Future SightHits two turns after being used.PsychicSpec120100%10

TM / HM / TR 91

TM01Take DownHas 1/4 recoil.NormalPhys9085%20

TM04AgilityRaises the user's Speed by 2.PsychicStatus——30

TM06Scary FaceLowers the target's Speed by 2.NormalStatus—100%10

TM07ProtectPrevents moves from affecting the user this turn.NormalStatus——10

TM12Low KickMore power the heavier the target.FightingPhys—100%20

TM16Psybeam10% chance to confuse the target.PsychicSpec65100%20

TM17Confuse RayConfuses the target.GhostStatus—100%10

TM20Trailblaze100% chance to raise the user's Speed by 1.GrassPhys50100%20

TM22Chilling Water100% chance to lower the target's Attack by 1.WaterSpec50100%20

TM25FacadePower doubles if user is burn/poison/paralyzed.NormalPhys70100%20

TM28Bulldoze100% chance lower adjacent Pkmn Speed by 1.GroundPhys60100%20

TM29HexPower doubles if the target has a status ailment.GhostSpec65100%10

TM32SwiftThis move does not check accuracy. Hits foes.NormalSpec60—20

TM34Icy Wind100% chance to lower the foe(s) Speed by 1.IceSpec5595%15

TM36Rock Tomb100% chance to lower the target's Speed by 1.RockPhys6095%15

TM39Low Sweep100% chance to lower the target's Speed by 1.FightingPhys65100%20

TM41Stored Power + 20 power for each of the user's stat boosts.PsychicSpec20100%10

TM42Night ShadeDoes damage equal to the user's level.GhostSpec—100%15

TM43FlingFlings the user's item at the target. Power varies.DarkPhys—100%10

TM46AvalanchePower doubles if user is damaged by the target.IcePhys60100%10

TM47EndureUser survives attacks this turn with at least 1 HP.NormalStatus——10

TM49Sunny DayFor 5 turns, intense sunlight powers Fire moves.FireStatus——5

TM50Rain DanceFor 5 turns, heavy rain powers Water moves.WaterStatus——5

TM51SandstormFor 5 turns, a sandstorm rages. Rock: 1.5× SpD.RockStatus——10

TM54PsyshockDamages target based on Defense, not Sp. Def.PsychicSpec80100%10

TM58Brick BreakDestroys screens, unless the target is immune.FightingPhys75100%15

TM59Zen Headbutt20% chance to make the target flinch.PsychicPhys8090%15

TM62Foul PlayUses target's Attack stat in damage calculation.DarkPhys95100%15

TM64Bulk UpRaises the user's Attack and Defense by 1.FightingStatus——20

TM66Body Slam30% chance to paralyze the target.NormalPhys85100%15

TM67Fire Punch10% chance to burn the target.FirePhys75100%15

TM68Thunder Punch10% chance to paralyze the target.ElectricPhys75100%15

TM69Ice Punch10% chance to freeze the target.IcePhys75100%15

TM70Sleep TalkUser must be asleep. Uses another known move.NormalStatus——10

TM72Electro BallMore power the faster the user is than the target.ElectricSpec—100%10

TM73Drain PunchUser recovers 50% of the damage dealt.FightingPhys75100%10

TM74ReflectFor 5 turns, physical damage to allies is halved.PsychicStatus——20

TM75Light ScreenFor 5 turns, special damage to allies is halved.PsychicStatus——30

TM80MetronomePicks a random move.NormalStatus——10

TM81Grass KnotMore power the heavier the target.GrassSpec—100%20

TM82Thunder WaveParalyzes the target.ElectricStatus—90%20

TM83Poison Jab30% chance to poison the target.PoisonPhys80100%20

TM84Stomping TantrumPower doubles if the user's last move failed.GroundPhys75100%10

TM85RestUser sleeps 2 turns and restores HP and status.PsychicStatus——5

TM86Rock Slide30% chance to make the foe(s) flinch.RockPhys7590%10

TM87TauntTarget can't use status moves its next 3 turns.DarkStatus—100%20

TM92ImprisonNo foe can use any move known by the user.PsychicStatus——10

TM94Dark Pulse20% chance to make the target flinch.DarkSpec80100%15

TM98Skill SwapThe user and the target trade Abilities.PsychicStatus——10

TM101Power GemNo additional effect.RockSpec80100%20

TM103SubstituteUser takes 1/4 its max HP to put in a substitute.NormalStatus——10

TM107Will-O-WispBurns the target.FireStatus—85%15

TM109TrickUser switches its held item with the target's.PsychicStatus—100%10

TM112Aura SphereThis move does not check accuracy.FightingSpec80—20

TM114Shadow Ball20% chance to lower the target's Sp. Def by 1.GhostSpec80100%15

TM119Energy Ball10% chance to lower the target's Sp. Def by 1.GrassSpec90100%10

TM120Psychic10% chance to lower the target's Sp. Def by 1.PsychicSpec90100%10

TM125Flamethrower10% chance to burn the target.FireSpec90100%15

TM126Thunderbolt10% chance to paralyze the target.ElectricSpec90100%15

TM128AmnesiaRaises the user's Sp. Def by 2.PsychicStatus——20

TM129Calm MindRaises the user's Sp. Atk and Sp. Def by 1.PsychicStatus——20

TM130Helping HandOne adjacent ally's move power is 1.5× this turn.NormalStatus——20

TM133Earth Power10% chance to lower the target's Sp. Def by 1.GroundSpec90100%10

TM134ReversalMore power the less HP the user has left.FightingPhys—100%15

TM135Ice Beam10% chance to freeze the target.IceSpec90100%10

TM138Psychic Terrain5 turns. Grounded: +Psychic power, priority-safe.PsychicStatus——10

TM140Nasty PlotRaises the user's Sp. Atk by 2.DarkStatus——20

TM141Fire Blast10% chance to burn the target.FireSpec11085%5

TM143Blizzard10% chance to freeze foe(s). Can't miss in Snow.IceSpec11070%5

TM149EarthquakeHits adjacent Pokémon. Double damage on Dig.GroundPhys100100%10

TM150Stone EdgeHigh critical hit ratio.RockPhys10080%5

TM152Giga ImpactUser cannot move next turn.NormalPhys15090%5

TM158Focus Blast10% chance to lower the target's Sp. Def by 1.FightingSpec12070%5

TM160Hurricane30% chance to confuse target. Can't miss in rain.FlyingSpec11070%10

TM161Trick RoomGoes last. For 5 turns, turn order is reversed.PsychicStatus——5

TM163Hyper BeamUser cannot move next turn.NormalSpec15090%5

TM166Thunder30% chance to paralyze. Can't miss in rain.ElectricSpec11070%10

TM168Solar BeamCharges turn 1. Hits turn 2. No charge in sunlight.GrassSpec120100%10

TM171Tera BlastIf Terastallized: Phys. if Atk > SpA, type = Tera.NormalSpec80100%10

TM177SpiteLowers the PP of the target's last move by 4.GhostStatus—100%10

TM178Gravity5 turns: no Ground immunities, 1.67× accuracy.PsychicStatus——5

TM181Knock Off1.5× damage if foe holds an item. Removes item.DarkPhys65100%20

TM192Focus PunchFails if the user takes damage before it hits.FightingPhys150100%20

TM193Weather BallPower doubles and type varies in each weather.NormalSpec50100%10

TM199Lash Out2× power if the user had a stat lowered this turn.DarkPhys75100%5

TM203Psych UpCopies the target's current stat stages.NormalStatus——10

TM204Double-EdgeHas 33% recoil.NormalPhys120100%15

TM217Future SightHits two turns after being used.PsychicSpec120100%10

TM218Expanding ForceUser on Psychic Terrain: 1.5× power, hits foes.PsychicSpec80100%10

TM224CurseCurses if Ghost, else -1 Spe, +1 Atk, +1 Def.GhostStatus——10

TM228Psychic NoiseFor 2 turns, the target is prevented from healing.PsychicSpec75100%10

Biology

Standing 6 feet 7 inches (201 cm) tall, Mewtwo appears as a bipedal feline. It has a light gray physique with a pronounced tail and abdomen, large thighs, purple irises, bulbous fingertips, pronounced collarbone, crest-like pinnae, and a tube-like mass of flesh that connects from behind its head to the center of its upper back.

Known as the "Genetic Pokémon", Mewtwo originated from the DNA of Mew, mutated by Dr. Fuji in a lab after years of gene splicing. It is an extremely powerful psychic, with its abilities surpassing Mew's due to intentional alterations to the genetic source material.

Design & origin

Mewtwo was conceived and designed by design lead Ken Sugimori, and was one of the earliest designs created, preceding that of Pikachu. The details in its shape as well as the look in its eyes were intended to give off "an unsettling aura". In the original games, Mewtwo was intended to be "the strongest Pokémon ever."

Adapted from Wikipedia: List of generation I Pokémon, Mewtwo · CC BY-SA 4.0 · edited.

Pokédex entries

: Genetic Pokémon
: Kanto · Red & Green (JP)
Color: Purple

: Rare
Pal Park area: Field

Kanto#150Original Johto#249Updated Johto#254Mountain Kalos#151Let’s Go Kanto#150Lumiose#232

A Pokémon created by recombining MEW’s genes. It’s said to have the most savage heart among Pokémon.
Diamond · Pearl · Platinum · Black · White · Black 2 · White 2 · Y
A Pokémon whose genetic code was repeatedly recombined for research. It turned vicious as a result.
FireRed
A Pokémon that was created by genetic manipulation. However, even though the scientific power of humans made its body, they failed to give it a warm heart.
Emerald
MEWTWO is a Pokémon that was created by genetic manipulation. However, even though the scientific power of humans created this Pokémon’s body, they failed to endow MEWTWO with a compassionate heart.
Ruby · Sapphire · Omega Ruby · Alpha Sapphire
Said to rest quietly in an undiscovered cave, this Pokémon was created solely for battling.
Crystal
It usually remains motionless to conserve energy, so that it may unleash its full power in battle.
Silver · SoulSilver
Because its battle abilities were raised to the ultimate level, it thinks only of defeating its foes.
Gold · HeartGold
Its DNA is almost the same as MEW's. However, its size and disposition are vastly different.
Yellow · Let’s Go, Pikachu! · Let’s Go, Eevee!
It was created by a scientist after years of horrific gene splicing and DNA engineering experiments.
Red · Blue · LeafGreen · X

Names around the world

English: Mewtwo
Japanese: ミュウツー
Japanese (romaji): Mewtwo
Korean: 뮤츠
Chinese (Traditional): 超夢
Chinese (Simplified): 超梦
French: Mewtwo
German: Mewtu
Spanish: Mewtwo
Italian: Mewtwo

Sprites

Artwork and 3D models

Gen IX · Gen VII · Gen VI

Training

: 3 SpA
: 3 ≈0.4% with a Poké Ball at full HP
: 0
: 351
: Slow

Breeding

: Undiscovered
: Genderless
: 120 egg cycles ≈30,855 steps (Gen IV–VII)

Where to find

Mega Evolves in battle from Mewtwo holding Mewtwonite Y.

Not found in the wild in the games we have location data for.

Locations cover Red & Blue to Sword & Shield (with its DLC) and Let’s Go. We don’t have them yet for Legends: Arceus, Brilliant Diamond & Shining Pearl, Scarlet & Violet and Legends: Z-A.

Mega Mewtwo Y

Weak to

Resists

Weak to

Resists

Smogon · Showdown On Showdown

Most common build

Usage by rating

Usage by month

Moves

Items

Abilities

EV spreads

Tera types

Common teammates

Checks & counters

Smogon · Showdown On Showdown

Level up 16

TM / HM / TR 91

Design & origin

Names around the world

Artwork and 3D models

Gen IX · Gen VIII · Gen VII

Gen VI · Gen V

Generation IV

Generation III

Generation II

Generation I

Artwork and 3D models

Gen IX · Gen VII · Gen VI

Artwork and 3D models

Gen IX · Gen VII · Gen VI