Hello students! My name is Professor Geekbeak, and today, I wish to draw attention to Mega Mewtwo Y. I feel I do not have to elaborate when I say both this Mewtwo and their Y-Related Brother are the strongest psychic types available right now. However, it is prudent to mention that Mega Mewtwo Y is pure psychic, and as such, is the strongest psychic type in the game, with some of, if not the highest CP numbers in the game currently. Grab your notebooks, class is in session. For those who wish to do their research independently, our raw data can be found here. And for those who wish for a simple visual guide, go ahead and take a look at the below visual guide by CaptGoldfish.
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Professor Geekbeak’s Raid Research: Mega Mewtwo Y
Professor Noctowl's Raid Research: Mega Mewtwo Y
A Scholarly Analysis from the Pokebattler Pokémon Research Institute
Raid Introduction
Raid Syllabus
Course Schedule
This counter is one of many GO FEST raids. There are too many to put a coherent schedule here, but rest assured, pretty much every legendary, mega, and shadow under the sun will be going at some point. Look to your local GO FEST event or the Pokebattler.com raid schedule to see exactly what raids will be going.
Course Information
- Catch CP: 2294 - 2387
- Boosted (Windy): 2868 - 2984
- Minimum Required Trainers (Lvl 40, best friends, optimal weather): 3
- Recommended: 6+ with Lvl 20 counters
Type Effectiveness & Moveset List
This is a standard psychic type, and Mega Mewtwo Y has no surprise moves. In fact, since it can know Hyper Beam, that is a benefit for Ghost Pokemon.
| Effectiveness | Types |
|---|---|
| Double Resist (0.4x) | — |
| Resist (0.6x) | |
| Neutral | |
| Super Effective (1.6x) | |
| Double Super Effective (2.6x) | — |
Mega Mewtwo Y’s moveset includes the following charge moves:
- Flamethrower
- Ice Beam
- Thunderbolt
- Psychic
- Focus Blast
- Return
- Hyper Beam
- Shadow Ball
- Psystrike
The Dean's List - Top 5 Counters
The Dean’s List consists of the top 5 counters to Mega Mewtwo Y. As always, the Valedictorian, Salutatorian, and the Third Ranked will have their best moveset alternatives in a table with their rankings and a table detailing their defensive prowess against the charge moves listed above.
Necrozma - Dawn Wings A
(Lvl 40)
| Quick Move | Charge Move | Efficacy |
|---|---|---|
| Shadow Claw | Moongeist Beam | 100% |
| Psycho Cut | Moongeist Beam | 93% |
| Metal Claw | Moongeist Beam | 87% |
| Shadow Claw | Dark Pulse | 64% |
| Shadow Claw | Future Sight | 55% |
| Shadow Claw | Iron Head | 55% |
Mega Mewtwo Y A
(Lvl 40)
| Quick Move | Charge Move | Efficacy |
|---|---|---|
| Psycho Cut | Shadow Ball | 100% |
| Confusion | Shadow Ball | 90% |
| Counter | Shadow Ball | 89% |
| Psycho Cut | Thunderbolt | 60% |
| Confusion | Thunderbolt | 59% |
| Psycho Cut | Ice Beam | 58% |
Mega Mewtwo X A
(Lvl 40)
| Quick Move | Charge Move | Efficacy |
|---|---|---|
| Psycho Cut | Shadow Ball | 100% |
| Counter | Shadow Ball | 92% |
| Confusion | Shadow Ball | 90% |
| Psycho Cut | Thunderbolt | 61% |
| Counter | Thunderbolt | 61% |
| Confusion | Thunderbolt | 59% |
Defensive Grades for Top 3
| Boss Move | |||
|---|---|---|---|
| Focus Blast | 🛡🛡 | 🛡 | 🛡 |
| Ice Beam | — | — | — |
| Thunderbolt | — | — | — |
| Flamethrower | — | — | — |
| Psychic | 🛡 | 🛡 | — |

Mega Tyranitar A
(Lvl 40)
Shadow Tyranitar A
(Lvl 40)
Also Noteworthy: A: Mega AbsolHonor Roll - The Bottom 5
We here at Pokebattler Pokémon Research Institute can’t expect you to have the best counters every time. So, here are some of our other best options, most of which will be easier to find than the members of the Dean’s List.

Mega Gengar A
(Lvl 40)
Shadow Hydreigon A
(Lvl 40)
Lunala A
(Lvl 40)
Shadow Darkrai A
(Lvl 40)
Shadow Regigigas A
(Lvl 40)
Honorable Mentions
Of course, besides our 10 best counters, there are plenty of Pokémon that also work against Mega Mewtwo Y. Here are a few star choices, worthy of praise.
| A | Mega Rayquaza Mega Heracross Mega Banette |
Weather Specialists
Sometimes, the weather can be your most powerful ally. In certain weather conditions, certain Pokémon on our list excel. The most transformative cases are noted below.
FogRaid Conclusion
Overall, Mega Mewtwo Y will be tough to bring down. Even with a simple typing, it still packs a punch, and certainly needs the hordes of people that will be at GO FEST to deal with this beast. Of course, if you wish to do more research on your box’s best Pokémon for the job, Pokebattler.com itself can be a great help! Remember, the best counter is the one you have powered up and ready to go. I grant extra credit to those who use their best friend bonus and the weather to their advantage. Class dismissed!
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