In Ruby & Sapphire, Mewtwo is a Legendary Pokemon rated S-Tier. At 680 BST, it hits hard. It excels as a sweeper. Base 154 Sp. Atk is where it shines.

Does Mewtwo mega evolve?

Mega Evolution isn't available in Ruby & Sapphire, but Mewtwo does have a Mega form in Gen 6-7 games (X/Y, ORAS, Sun/Moon). Mega Mewtwo hits 780 BST.

What is Mewtwo weak to?

In Ruby & Sapphire, Mewtwo's biggest threats include Scyther (Bug), Misdreavus (Ghost), and Tyranitar (Dark), all carrying super-effective STAB moves.

What role does Mewtwo play in battle?

In Ruby & Sapphire, Mewtwo fills the sweeper role. It's a special attacker with base 154 Sp. Atk. Base 130 Speed lets it outrun most of the field. And it's tanky enough to absorb a few hits.

Mewtwo - Weakness, Evolution, Moveset, EVs & Stats

Special

Sweeper

STier

130Speed · Extreme

Stats & Training

Mewtwo's built around special offense. Sp. Atk leads the charge, Defense pays for it. Near-impossible to catch, worth 3 Sp. Atk EVs. Follows a slow 1.25M XP grind.

Base Stats

Legend

HP106

Attack110

Defense90

Sp. Atk154

Sp. Def90

Speed130

Total680

Details

Catch Rate

Legendary3 / 255

Growth Rate

Slow1.25M XP

Height2.0 m

Weight122.0 kg

Base XP340

Abilities

Pressure

Increases the PP cost of moves targetting the Pokémon by one.

UnnerveHANot in game

Prevents opposing Pokémon from eating held Berries.

EV Yield

HPAtkDefSpA+3SpDSpe

Strong Special Attack training target

Pokedex Entries

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.

Mewtwo Weakness

Type-wise, Mewtwo takes extra damage from Bug, Ghost, and Dark. Mewtwo's overall bulk (106/90/90) lets it take a hit or two from most weaknesses before going down.

Mewtwo Weakness and Resistance Chart
Damage	Types
2x (Weak)	Bug, Ghost, Dark
0.5x (Resist)	Fighting, Psychic

Type ChartVulnerable

3Weak

2Resist

0Immune

Score-4

Gen III Type Chart

Dark and Steel types added — Fairy does not exist yet
Moves are Physical or Special based on type, not per move

4xCritical

None

2xWeak

Bug Ghost Dark

½xResist

Fighting Psychic

¼xResist

None

0xImmune

None

STAB (2)

Fighting Poison

How to Beat Mewtwo in Ruby & Sapphire (Best Counters)

In Ruby & Sapphire, Gengar's Explosion hits Mewtwo for 35-41%. Forretress's Explosion hits Mewtwo for 51-60%. Houndoom deals 73-86% with Crunch.

Gengar GhostPoison	S
Recommended Build AbilityLevitate ItemLeftovers NatureTimid Moves Thunderbolt Ice Punch Explosion Will O Wisp Damage vs Mewtwo Thunderbolt 30-36% Explosion 35-41% View Gengar builds →
Forretress BugSteel	B
Recommended Build AbilitySturdy ItemLeftovers NatureCareful Moves SpikesHazard Rapid Spin Explosion Earthquake Damage vs Mewtwo Rapid Spin 10-12% Explosion 51-60% Earthquake 21-24% View Forretress builds →
Houndoom DarkFire	B
Recommended Build AbilityFlashfire ItemLeftovers NatureTimid Moves PursuitSTAB Fire Blast CrunchSTAB Will O Wisp Damage vs Mewtwo Pursuit 2x 37-43% Fire Blast 50-59% Crunch 2x 73-86% View Houndoom builds →
Dusclops Ghost	B
Recommended Build AbilityPressure ItemLeftovers NatureCalm Moves Will O Wisp Pain Split Shadow Ball RestRecovery Damage vs Mewtwo Shadow Ball 2x 37-43% View Dusclops builds →
Scizor BugSteel	C
Recommended Build AbilitySwarm ItemSalacberry NatureJolly Moves Swords Dance EndurePriority Reversal Hidden Power Rock View Scizor builds →

Ruby & Sapphire Evolution

No breeding, no evolution. Mewtwo is a Psychic legendary with 680 base stat total that you obtain once and build around. View every chain in the Evolution Chart.

How to Evolve

No Evolution

#150MewtwoDoes not evolve

Breeding

Unavailable

Undiscovered egg group

Ruby & Sapphire Mewtwo Best Moveset

Best Build

No build content available for this Pokemon in Gen 3.

Try selecting a different game/generation filter, or check back later.

Moves

Stall teams hate this. Mewtwo can spread damage across 12 types, with Normal and Flying punishing common defensive pivots. STAB from Future Sight and Psychic keeps the pressure honest on everything else.

Level-Up Moves

Lv 1

Confusion

—5010025Psychic

Lv 1

Disable

——5520Normal

Lv 11

Barrier

D——30Psychic

Lv 22

Swift

—60—20Normal

Lv 33

Psych Up

D——10Normal

Lv 44

Future Sight

—12010010Psychic

Lv 55

Mist

———30Ice

Lv 66

Psychic

B9010010Psychic

Lv 77

Amnesia

D——20Psychic

Lv 88

Recover

C——20Normal

Lv 99

Safeguard

D——25Normal

TM Moves

TM40

Aerial Ace

C60—20Flying

TM14

Blizzard

C120705Ice

TM31

Brick Break

C7510015Fighting

TM08

Bulk Up

C——20Fighting

TM04

Calm Mind

C——20Psychic

TM32

Double Team

———15Normal

TM26

Earthquake

C10010010Ground

TM42

Facade

C7010020Normal

TM38

Fire Blast

B120855Fire

TM35

Flamethrower

B9510015Fire

HM05

Flash

——7020Normal

TM01

Focus Punch-3

B15010020Fighting

TM21

Frustration

——10020Normal

TM07

Hail

———10Ice

TM10

Hidden Power

—6010015Normal

TM15

Hyper Beam

B150905Normal

TM13

Ice Beam

B9510010Ice

TM23

Iron Tail

C1007515Steel

TM16

Light Screen

C——30Psychic

TM17

Protect+4

C——10Normal

TM29

Psychic

B9010010Psychic

TM18

Rain Dance

C——5Water

TM33

Reflect

D——20Psychic

TM44

Rest

C——10Psychic

TM27

Return

D—10020Normal

HM06

Rock Smash

—2010015Fighting

TM39

Rock Tomb

—609510Rock

TM20

Safeguard

D——25Normal

TM37

Sandstorm

———10Rock

TM43

Secret Power

—7010020Normal

TM30

Shadow Ball

B8010015Ghost

TM34

Shock Wave

—60—20Electric

TM48

Skill Swap

———10Psychic

TM49

Snatch+4

———10Dark

TM22

Solar Beam

B12010010Grass

HM04

Strength

—8010015Normal

TM11

Sunny Day

C——5Fire

TM12

Taunt

C—10020Dark

TM25

Thunder

C1207010Electric

TM24

Thunderbolt

B9510015Electric

TM41

Torment

D—10015Dark

TM06

Toxic

C—8510Poison

TM03

Water Pulse

—6010020Water

Egg Moves

Mewtwo doesn't have any Egg moves

Tutor Moves

Mewtwo can't learn any Tutor moves

How to Get Mewtwo in Ruby & Sapphire

Mewtwo doesn't appear in Ruby & Sapphire. Transfer it from Red, Yellow, or Let's Go Pikachu to add it to your collection. Check the source games below for encounter details.

Mewtwo is not available as a wild encounter in this game.

Special encounter in:

FireRedSpecial encounter · Cerulean Cave

Then trade to Ruby & Sapphire.

Also found in:

Red Yellow HeartGold X Ultra Sun Let's Go Pikachu

Mewtwo Guide

In Ruby & Sapphire, Mewtwo is a Legendary Pokemon rated S-Tier. At 680 BST, it hits hard. It excels as a sweeper. Base 154 Sp. Atk is where it shines.
Mega Evolution isn't available in Ruby & Sapphire, but Mewtwo does have a Mega form in Gen 6-7 games (X/Y, ORAS, Sun/Moon). Mega Mewtwo hits 780 BST.
In Ruby & Sapphire, Mewtwo's biggest threats include Scyther (Bug), Misdreavus (Ghost), and Tyranitar (Dark), all carrying super-effective STAB moves.
Pressure is the go-to ability for Mewtwo. It increases the PP cost of moves targetting the Pokémon by one. Its hidden ability Unnerve can work in specific setups.
In Ruby & Sapphire, Mewtwo fills the sweeper role. It's a special attacker with base 154 Sp. Atk. Base 130 Speed lets it outrun most of the field. And it's tanky enough to absorb a few hits.

Game Availability

Mewtwo has appeared in 21 games since Red & Blue, spanning 10 generations. As a Legendary, it's typically a one-per-save encounter tied to the story or post-game content.

Click a game to view version-specific details

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