Hello students! My name is Professor Noctowl, and today, I wish to draw attention to Mega Mewtwo X. Of course, Mega Mewtwo X is currently one of the best Pokemon in the game, and is certainly worth the catch. I also want to note that there are murmurs of an Adventure Effect being added to both Mega Mewtwos in the future, but do not take that as gospel. 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.

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.

Since Mega Mewtwo only has a few weaknesses, and one of them is flying, you should be careful of Ice Beam, as it hits hard on a lot of the strongest counters on this list.

Effectiveness	Types
Double Resist (0.4x)	—
Resist (0.6x)	Fighting Rock
Neutral	Normal Poison Ground Bug Steel Fire Water Grass Electric Psychic Ice Dragon Dark
Super Effective (1.6x)	Flying Ghost Fairy
Double Super Effective (2.6x)	—

Mega Mewtwo X’s moveset includes the following charge moves:

• Flamethrower
• Ice Beam
• Thunderbolt
• Psychic
• Focus Blast
• Return

The Dean’s List consists of the top 5 counters to Mega Mewtwo X. 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.

Mega Rayquaza A

Best Moveset: Air Slash / Dragon Ascent

DPS★★★★★

Tank★★★★★

Reliability★☆☆☆☆

3

Trainers
(Lvl 40)

Quick Move	Charge Move	Efficacy
Air Slash	Dragon Ascent	100%
Dragon Tail	Dragon Ascent	89%
Air Slash	Hurricane	78%
Air Slash	Aerial Ace	76%
Air Slash	Breaking Swipe	76%
Dragon Tail	Aerial Ace	67%

Necrozma - Dawn Wings A

Best Moveset: Shadow Claw / Moongeist Beam

DPS★★★★★

Tank★★★★☆

Reliability★★☆☆☆

3

Trainers
(Lvl 40)

Quick Move	Charge Move	Efficacy
Shadow Claw	Moongeist Beam	100%
Psycho Cut	Moongeist Beam	100%
Metal Claw	Moongeist Beam	86%
Shadow Claw	Future Sight	63%
Shadow Claw	Iron Head	55%
Shadow Claw	Dark Pulse	52%

Mega Gardevoir A

Best Moveset: Charm / Dazzling Gleam

DPS★★★☆☆

Tank★★★☆☆

Reliability★★☆☆☆

4

Trainers
(Lvl 40)

Quick Move	Charge Move	Efficacy
Charm	Dazzling Gleam	100%
Charm	Shadow Ball	97%
Charge Beam	Dazzling Gleam	87%
Magical Leaf	Dazzling Gleam	87%
Confusion	Dazzling Gleam	87%
Confusion	Shadow Ball	83%

Defensive Grades for Top 3

Boss Move
Ice Beam	⚔⚔	—	—
Psychic	—	🛡	🛡
Thunderbolt	—	—	—
Focus Blast	🛡	🛡🛡	🛡🛡
Flamethrower	🛡	—	—

Shadow Moltres A

Best Moveset: Wing Attack / Fly

DPS★★★☆☆

Tank★★★☆☆

Reliability★☆☆☆☆

4

Trainers
(Lvl 40)

Mega Gengar A

Best Moveset: Lick / Shadow Ball

DPS★★★☆☆

Tank★★★☆☆

Reliability★★☆☆☆

4

Trainers
(Lvl 40)

Also Noteworthy: A: Zacian – Crowned Sword

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.

Shadow Salamence A

Best Moveset: Dragon Tail / Fly

DPS★★★☆☆

Tank★★★☆☆

Reliability★☆☆☆☆

4

Trainers
(Lvl 40)

Lunala A

Best Moveset: Shadow Claw / Shadow Ball

DPS★★★☆☆

Tank★★☆☆☆

Reliability★★★☆☆

4

Trainers
(Lvl 40)

Rayquaza A

Best Moveset: Air Slash / Dragon Ascent

DPS★★★☆☆

Tank★★★☆☆

Reliability★☆☆☆☆

4

Trainers
(Lvl 40)

Moltres A

Best Moveset: Wing Attack / Fly

DPS★★★☆☆

Tank★★★☆☆

Reliability★☆☆☆☆

4

Trainers
(Lvl 40)

Yveltal A

Best Moveset: Gust / Oblivion Wing

DPS★★★☆☆

Tank★★☆☆☆

Reliability★★☆☆☆

4

Trainers
(Lvl 40)

Of course, besides our 10 best counters, there are plenty of Pokémon that also work against Mega Mewtwo X. Here are a few star choices, worthy of praise.

A	Shadow MewtwoMega SalamenceShadow RegigigasMega AlakazamGalarian ArticunoEternatusTapu LeleShadow Ho-OhMega Mewtwo XEnamorusGiratina OriginShadow DarkraiShadow ZapdosMega BanetteMewtwoZamazenta - Crowned ShieldSalamenceBlack KyuremGholdengo

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.

Partly Cloudy

Shadow Regigigas (3.4)

Cloudy

Tapu Lele (3.3)Zacian - Crowned Sword (3.4)

Windy

Yveltal (3.1)Mega Salamence (3.1)Galarian Articuno (3.2)

Snow

Zacian - Crowned Sword (3.5)

Fog

Lunala (3.1)Shadow Mewtwo (3.1)Giratina Origin (3.2)

Overall, Mega Mewtwo X is a difficult raid. This is to be expected, it is the headliner of GO FEST 2026. Pulling out all the stops will be necessary to deal with one of the Genetic Pokemon’s ultimate forms. 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!