Mega Mewtwo Y vs Mewtwo
PsychicTypeSamePsychic- 106HP=106
- 110Attack+40150
- 90Defense−2070
- 154Sp. Atk+40194
- 90Sp. Def+30120
- 130Speed+10140
- 680Total+100780
How to get the Mewtwonite Y in Let's Go Pikachu & Eevee
GiftCerulean CaveAfter defeating Green
Green hands it to you on B1F once you beat her
How to Get Mega Mewtwo Y in Let's Go Pikachu & Eevee
Mewtwo waits at a fixed spot in this game. Head to Cerulean Cave for a one-time encounter. No random spawns or encounter rates involved. It's a set battle at a known location.
1 location to catch Mewtwo
Badge 8How to Get Mewtwo in Let's Go Pikachu & Eevee
How to Get Shiny Mega Mewtwo Y in Let's Go Pikachu & Eevee
A shiny Mewtwo becomes a shiny Mega Mewtwo Y when it Mega Evolves, so these are the routes to Shiny Mewtwo.
In Let's Go Pikachu & Eevee, the only route to a Shiny Mewtwo is Soft Reset, about 1 in 1,366 per try. Tune your setup below to see live odds. Compare Shiny Mewtwo odds across every game
Normal
Shiny
Let's Go Pikachu & Eevee Shiny Mewtwo Calculator
1 MethodThe only route here is Soft Reset, about 1 in 1,366 on each try. Tune it below.
Soft Reset: Save in front of a static, gift, or legendary encounter, then reset until it sparkles.
How many you have done, or plan to do.
| Chance | Encounters |
|---|---|
| 10%lucky few | 144 |
| 25%one in four | 393 |
| 50%coin flip | 947 |
| 90%very likely | 3,145 |
How is this calculated?
Every encounter has the same shiny chance, the Shiny Odds Per Try shown above. Each one is a separate roll that does not care how many you have already done, so the more you hunt, the higher your overall chance of at least one shiny. The formula below turns your odds and your number of tries into that combined chance.
chance after N tries = 1 − (1 − p)^N, where p = 1 / odds per try
Example at 1 in 8,192 (classic full odds): about 864 encounters for a 10 percent chance, 5,678 for 50 percent, and 18,862 for 90 percent.
The table above flips that around: it shows how many encounters it takes to reach a 10, 25, 50, and 90 percent chance at your current odds. Turning on boosts like the Shiny Charm, sandwiches, or chains improves your odds, so the encounter numbers drop.
These are estimates, not promises. Most games have no pity counter, meaning no guaranteed shiny no matter how many you hunt, so even Very Likely is not guaranteed: some hunters find one early, others go well past that point.
Curious how fast a hunt could go? Work out your Let's Go Pikachu & Eevee shiny odds for Mewtwo.
Mega Mewtwo Y Weakness
Type-wise, Mega Mewtwo Y takes extra damage from Bug, Ghost, and Dark. Mega Mewtwo Y's special bulk (base 120 Sp.Def) helps absorb special-type weaknesses, though physical moves exploit the lower Defense.
| Damage | Types |
|---|---|
| 2x (Weak) | Bug, Ghost, Dark |
| 0.5x (Resist) | Fighting, Psychic |
What is Mega Mewtwo Y Weak Against
VulnerableBest Pokemon Against Mega Mewtwo Y
 Butterfree Bug | C | |
 Venomoth BugPoison | C | |
 Parasect BugGrass | C | |
 Haunter GhostPoison | C | |
Available Moves Moves
Damage vs Mega Mewtwo Y View Haunter builds →Shadow Ball 2x49-58% Dark Pulse 2x32-38% | ||
 Beedrill BugPoison | C | |
Mega Mewtwo Y Evolutions
Mewtwo doesn't evolve, so what you catch is the final form. Its Psychic typing comes with 680 total stats. In battle, Mewtwo holding Mewtwonite Y Mega Evolves into Mega Mewtwo Y. View every chain in the Evolution Chart.
How to Evolve
Mega Mewtwo Y Moves in Let's Go Pikachu & Eevee
Best Build
Smart Candy+SPAMild raises Sp. Atk and lowers Defense. Madam Celadon sets this nature when you pick Blue, then Yellow. It costs 10,000 Pokedollars and lasts for the rest of the day.
Candy for Mewtwo
- Mewtwo Candy
- Smart Candy
Smart Candy L
Smart Candy XL
Mewtwo Candy raises every stat, but only Mewtwo can eat it. The stat candy that goes with Mewtwo is Smart Candy (Sp. Atk), and any Pokemon can eat it; Smart Candy L needs level 30 and Smart Candy XL needs level 60 or higher.
Mega Evolution
- Mega Mewtwo X
- Mega Mewtwo Y
Mega Mewtwo X (Psychic/Fighting type) has 106 HP, 190 Attack, 100 Defense, 154 Sp. Atk, 100 Sp. Def and 130 Speed, 780 in total. Weak to Flying, Ghost and Fairy. Resists Fighting and Rock. Best nature for Mega Mewtwo X: Lonely (Madam Celadon: Red, then Yellow). Mega Stone: 
Mewtwonite X, won from a trainer in Cerulean Cave after you catch Mewtwo. Pokedex: Psychic power has augmented its muscles. It has a grip strength of one ton and can sprint a hundred meters in two seconds flat!
Mega Mewtwo Y (Psychic type) has 106 HP, 150 Attack, 70 Defense, 194 Sp. Atk, 120 Sp. Def and 140 Speed, 780 in total. Weak to Bug, Ghost and Dark. Resists Fighting and Psychic. Best nature for Mega Mewtwo Y: Mild (Madam Celadon: Blue, then Yellow). Mega Stone: 
Mewtwonite Y, won from a trainer in Cerulean Cave after you catch Mewtwo. Pokedex: Despite its diminished size, its mental power has grown phenomenally. With a mere thought, it can smash a skyscraper to smithereens.
Mega Evolution can be used once per battle, on one Pokemon.
Moves List
Stall teams hate this. Mega Mewtwo Y can spread damage across 12 types, with Normal and Ice punishing common defensive pivots. STAB from Dream Eater and Psychic keeps the pressure honest on everything else.
How to Read the Moves Table
Tabs
- Level-Up
- Learned by leveling up.
- TM
- Taught by a Technical Machine.
- Tutor
- NPC tutor (cost: items, BP, money).
- Reminder
- An NPC reteaches any move this Pokemon could have learned by leveling up.
- Transfer
- Carried over from an older game using Pokemon HOME.
- Event
- Given out through Mystery Gift events.
Visual Signals
CAT (Category)
How the move deals damage and which stats it uses.
A small dot on the icon's corner marks the move as contact.
Tier (S to D)
Each move's competitive rank in RankedBoost's system. TM and Tutor sort by tier by default (best first). On Level-Up, click the Tier header to do the same.
PWR (Power)
Base damage. Numbers shown in a type color include STAB (base × 1.5). Hover any colored number to see the math.
— means no power (status moves) or variable power.
Sorting & Filter
Click any column header to sort. Level-Up opens with Lv 1 at the top. TM and Tutor open with the highest-tier moves at the top.
Search filters by move name or type. The Filter button limits the list to STAB, Physical, Special, or Status moves.
Level-Up Moves
TM Moves
Tutor Moves
Base Stats
Mega Mewtwo Y has 780 base stats in total. Sp. Atk leads at 194, and Defense is lowest at 70.
Mega Mewtwo Y Event Distributions
In Let's Go Pikachu & Eevee, Mewtwo is an occasional Mystery Gift target, offered in a small run of events.
These distributions give Mewtwo. Mega Mewtwo Y appears only in battle, through Mega Evolution with the Mewtwonite Y.
Mewtwo GiftLet's Go PikachuLet's Go EeveeNot shiny
Mewtwo GiftLet's Go PikachuLet's Go EeveeNot shiny
Mewtwo GiftLet's Go PikachuLet's Go EeveeNot shiny
Mewtwo GiftLet's Go PikachuLet's Go EeveeNot shiny
Game Availability
Mega Mewtwo Y first appeared in X & Y and is in 6 games: X & Y, Omega Ruby & Alpha Sapphire, Sun & Moon, Ultra Sun & Ultra Moon, Let's Go Pikachu & Eevee and Legends: Z-A.
Click a game to view version-specific details
- Gen 1RB
Red & Blue - Gen 1Y
Yellow - Gen 2GS
Gold & Silver - Gen 2C
Crystal - Gen 3RS
Ruby & Sapphire - Gen 3E
Emerald - Gen 3FRLG
FireRed & LeafGreen - Gen 4DP
Diamond & Pearl - Gen 4Pt
Platinum - Gen 4HGSS
HeartGold & SoulSilver - Gen 5BW
Black & White - Gen 5B2W2
Black 2 & White 2 - Gen 6XYDebut
X & Y - Gen 6ORAS
Omega Ruby & Alpha Sapphire - Gen 7SM
Sun & Moon - Gen 7USUM
Ultra Sun & Ultra Moon - Gen 7Let's Go
Let's Go Pikachu & Eevee - Gen 8SwSh
Sword & Shield - Gen 8BDSP
Brilliant Diamond & Shining Pearl - Gen 8PLA
Legends: Arceus - Gen 9SV
Scarlet & Violet - Gen 9LZA
Legends: Z-A - Gen 10WW
Winds & Waves
Explore
Where to go next after Mega Mewtwo Y.
Keep playing · Let's Go Pikachu & EeveeLet's Go Pikachu & Eevee Tier ListThe best Pokemon ranked tier by tierSee Let's Go Pikachu & Eevee Tier List