There's a reason Mewtwo has stayed relevant since Gen 1. Psychic typing and outspeeds nearly everything without investment — it checks a lot of boxes at once. Ghost moves can't touch it, and only 0 types hit it super-effectively. Known as the Genetic Pokemon.
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.
It was created by a scientist after years of horrific gene splicing and DNA engineering experiments.
Mewtwo Weakness
ExcellentMewtwo has no type weaknesses thanks to its unique defensive typing. Ghost moves do nothing thanks to a full immunity.
- Only 15 types exist — Dark, Steel, and Fairy are absent
- Ghost has no effect on Psychic (a known bug, fixed in Gen II)
- Special stat governs both offense and defense — no Sp.Atk / Sp.Def split
No breeding, no evolution. Mewtwo is a Psychic legendary with 680 base stat total that you obtain once and build around.
How to Evolve
Best Build
Gen 1 build content has limited support (no abilities, held items, or natures).
Try selecting a different game/generation filter, or check back later.
TMs define Mewtwo's movepool. The natural moves cover basics with Psychic and Confusion, but the real versatility comes from technical machines giving it coverage across 7 types. That's where the options open up.
Level-Up Moves
TM Moves
Egg Moves
Tutor Moves
You'll find Mewtwo at Cerulean Cave as a set encounter. It's always there at that location, so come prepared for the battle. The location details below cover exact positioning.
Best Locations
Mewtwo is a Legendary Pokemon rated S-Tier on our tier list. At 680 BST, it hits hard. It excels as a sweeper. Base 154 Sp. Atk is where it shines.
Mewtwo has no type weaknesses, making it hard to counter through typing alone. Focus on status moves, entry hazards, or raw neutral damage to take it down.
Mewtwo doesn't evolve. As a Legendary Pokemon, it stands on its own without an evolutionary line. It's a Psychic type with 680 BST.
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 appears in 21 games, including Yellow, Red & Blue, and Gold & Silver.
Mewtwo has appeared in 21 games since Red & Blue, spanning 9 generations. As a Legendary, it's typically a one-per-save encounter tied to the story or post-game content.
- Gen IY
Yellow - Gen IRBDebut
Red & Blue - Gen IIGS
Gold & Silver - Gen IIC
Crystal - Gen IIIRS
Ruby & Sapphire - Gen IIIFRLG
FireRed & LeafGreen - Gen IIIE
Emerald - Gen IVPt
Platinum - Gen IVHGSS
HeartGold & SoulSilver - Gen IVDP
Diamond & Pearl - Gen VBW
Black & White - Gen VB2W2
Black 2 & White 2 - Gen VIXYMega XMega Y
X & Y - Gen VIORASMega
Omega Ruby & Alpha Sapphire - Gen VIIUSUM
Ultra Sun & Ultra Moon - Gen VIISM
Sun & Moon - Gen VIILGPE
Let's Go Pikachu & Eevee - Gen VIIISwSh
Sword & Shield - Gen VIIIPLA
Legends: Arceus - Gen VIIIBDSP
Brilliant Diamond & Shining Pearl - Gen IXSV
Scarlet & Violet - Gen IXLZA
Legends: Z-A