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Professor Geekbeak’s Raid Research: Mega Blastoise

October 6, 2026 - Professor Geekbeak
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Mega Blastoise

Professor Noctowl's Raid Research: Mega Blastoise

A Scholarly Analysis from the Pokebattler Pokémon Research Institute

Raid Introduction

Hello students! My name is Professor Geekbeak, and today, I wish to draw attention to Mega Blastoise. While not the strongest water type mega, it is still one of the best, competing well with Mega Greninja and Mega Starmie. 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.

Visual Guide

Raid Syllabus

Course Schedule

This raid will take place from October 7th to October 13th. It is preceded by Mega Victreebel and Xerneas, coincide with Yveltal, and be followed by Mega Dragonite and Dialga.

Course Information

  • Catch CP: 1338 - 1409
  • Boosted (Rainy): 1673 - 1761
  • Minimum Required Trainers (Lvl 40, best friends, optimal weather): 1
  • Recommended: 3+ with Lvl 20 counters

Type Effectiveness & Moveset List

As you may know, Mega Blastoise is a pure water type. This makes the weakness chart very simple. The only move that Mega Blastoise knows outside of its typing it Flash Cannon, being a Steel type move.

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

Mega Blastoise’s moveset includes the following charge moves:

  • Steel Flash Cannon
  • Ice Ice Beam
  • Water Hydro Pump
  • Normal Skull Bash
  • Normal Return

The Dean's List - Top 5 Counters

The Dean’s List consists of the top 5 counters to Mega Blastoise. 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 Chesnaught

Mega Chesnaught A

Best Moveset: Grass Vine Whip / Grass Seed Bomb+
DPS★★★★★
Tank★★★★★
Reliability★★★★★
2
Trainers
(Lvl 40)
Quick Move Charge Move Efficacy
Grass Vine Whip Grass Seed Bomb+ 100%
Fighting Low Kick Grass Seed Bomb+ 87%
Grass Vine Whip Grass Frenzy Plant 84%
Fighting Low Kick Grass Frenzy Plant 75%
Grass Vine Whip Grass Solar Beam 72%
Rock Smack Down Grass Seed Bomb+ 69%
Mega Raichu-Y

Mega Raichu-Y A

Best Moveset: Electric Thunder Shock / Electric Zap Cannon+
DPS★★★★★
Tank★★★★★
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)
Quick Move Charge Move Efficacy
Electric Thunder Shock Electric Zap Cannon+ 100%
Electric Spark Electric Zap Cannon+ 92%
Electric Volt Switch Electric Zap Cannon+ 87%
Electric Thunder Shock Electric Wild Charge 85%
Electric Spark Electric Wild Charge 82%
Electric Volt Switch Electric Wild Charge 80%
Mega Raichu-X

Mega Raichu-X A

Best Moveset: Electric Thunder Shock / Electric Volt Tackle+
DPS★★★★★
Tank★★★★★
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)
Quick Move Charge Move Efficacy
Electric Thunder Shock Electric Volt Tackle+ 100%
Electric Spark Electric Volt Tackle+ 94%
Electric Volt Switch Electric Volt Tackle+ 94%
Electric Thunder Shock Electric Wild Charge 79%
Electric Volt Switch Electric Wild Charge 76%
Electric Spark Electric Wild Charge 76%

Defensive Grades for Top 3

Boss Move CHESNAUGHT_MEGA RAICHU_MEGA_Y RAICHU_MEGA_X
Water Hydro Pump 🛡 — —
Normal Skull Bash — — —
Ice Ice Beam ⚔ — —
Steel Flash Cannon — 🛡 🛡
Mega Mewtwo Y

Mega Mewtwo Y A

Best Moveset: Psychic Psycho Cut / Psychic Future Sight+
DPS★★★★★
Tank★★★★★
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)
Mega Mewtwo X

Mega Mewtwo X A

Best Moveset: Psychic Psycho Cut / Fighting Dynamic Punch+
DPS★★★★☆
Tank★★★★☆
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)
Also Noteworthy: A: Shadow Regigigas

Honor 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.

Zeraora

Zeraora A

Best Moveset: Electric Spark / Electric Plasma Fists
DPS★★★★☆
Tank★★★☆☆
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)
Shadow Raikou

Shadow Raikou A

Best Moveset: Electric Thunder Shock / Electric Wild Charge
DPS★★★★☆
Tank★★★☆☆
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)
Kartana

Kartana A

Best Moveset: Grass Razor Leaf / Grass Leaf Blade
DPS★★★★☆
Tank★★★☆☆
Reliability★★☆☆☆
2
Trainers
(Lvl 40)
Shadow Magnezone

Shadow Magnezone A

Best Moveset: Electric Volt Switch / Electric Wild Charge
DPS★★★★☆
Tank★★★☆☆
Reliability★★☆☆☆
2
Trainers
(Lvl 40)
Mega Manectric

Mega Manectric A

Best Moveset: Electric Thunder Fang / Electric Wild Charge
DPS★★★☆☆
Tank★★★☆☆
Reliability★☆☆☆☆
2
Trainers
(Lvl 40)

Honorable Mentions

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

A Mega RayquazaMega RayquazaEternatusEternatusMega VenusaurMega VenusaurZekromZekromXurkitreeXurkitreeShadow ChesnaughtShadow ChesnaughtThundurus TherianThundurus TherianZarudeZarudeShadow TangrowthShadow TangrowthShadow ZapdosShadow ZapdosMega SceptileMega SceptileMega LucarioMega LucarioRillaboomRillaboomRegigigasRegigigasMega VictreebelMega VictreebelMega AmpharosMega AmpharosShadow VenusaurShadow VenusaurMega GalladeMega GalladeElectivireElectivire

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.

Sunny/ClearSunny/Clear
Kartana (1.2)

Raid Conclusion

Overall, Mega Blastoise is a very simple raid. Being a mono-type makes the weakness list short, and the only move it has that isn’t in its typeset is a Steel type move, which doesn’t help against either of Mega Blastoise’s weaknesses. 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! Speaking of, we have rolled out a new system that will give a discount to our subscriptions, and I have been graciously granted a code! So, for those lucky readers who make it all the way down here, the code is GEEKBEAK20. This code not only supports the owner of Pokebattler, but also me! And, to be honest, in real life, the presidigious Professor Geekbeak is a broke college student, so I would really appreciate the support. Thank you! 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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