Free tools Windows power users keep installed
One-click scans. No signup required.
Mega Gyarados is a Water- and Dark-type raid boss, so attacks of the Electric, Grass, Fighting, Bug and Fairy types are effective against it. Build your raid team around Pokémon that can use those attacks, and bring enough Trainers for the strength of your group: a current Pokémon GO Hub guide estimates three to five high-level players, with more advisable if your counters are not optimized.
What is Mega Gyarados weak to?
Mega Gyarados has Water/Dark typing. Pokémon GO Hub’s September 6, 2026 guide lists five effective attack types: Electric, Grass, Fighting, Bug and Fairy. Use those types as a shortlist when building a team, but judge individual Pokémon by the moves they can actually use in battle.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Pokémon GO Plus + | $144.99 | Buy on Amazon |
| 2 |
|
Pokémon GO Plus + | $124.99 | Buy on Amazon |
| 3 |
|
Pokemon Go Plus + | $149.99 | Buy on Amazon |
| 4 |
|
Silicone Case for Poke Go Plus + (2023), Go Plus Plus Cover Case with Strap, Soft Protective Case... | $12.99 | Buy on Amazon |
| 5 |
|
Pokemon Go Plus + (Renewed) | Buy on Amazon |
Type-based counter rankings and available Pokémon can change as the game updates. The cited guide establishes useful attack categories, not a permanent ranking of the best individual counters or a current boss moveset.
How many Trainers do you need?
Pokémon GO Hub’s September 6, 2026 guide gives three to five high-level Trainers as a practical estimate for Mega Gyarados and recommends bringing more if the group does not have strong counters. This is a guide estimate, not an official Niantic player requirement or a guaranteed win threshold. Your team’s levels, moves, ability to stay in battle and the group’s execution all matter.
#1 Best Overall
- The packaging is Japanese, but item works the same as the US version.
- Catch Pokémon and track your rest rhythm with the Pokémon GO Plus + accessory!
- Keep track of your sleep with the press of a button
- Press and hold the central button on the Pokémon GO Plus + accessory and place it by your pillow to track your rest rhythm on the Pokémon Sleep app
- There’s a Pikachu within your Pokémon GO Plus + that can sing you lullabies and act as your morning alarm; Pikachu grows friendlier the more you sleep, unlocking even more sounds!
Niantic advises joining other Trainers for difficult raid bosses. Do not assume a solo or duo is reliable without accounting for your specific roster and the game’s current mechanics.
How to prepare your raid team
- Choose effective attacks. Prioritize Pokémon with Electric-, Grass-, Fighting-, Bug- or Fairy-type attacks that exploit Mega Gyarados’s weaknesses. A Pokémon’s type alone does not guarantee that its attacks will be effective.
- Consider staying power. A counter that survives longer can keep dealing damage. Niantic recommends dodging charged attacks to reduce incoming damage.
- Coordinate the lobby. For a difficult boss, raid with other Trainers and scale up the group if your available counters are less optimized.
- Decide whether to Mega Evolve. An active Mega Pokémon improves raid performance for all Trainers. Attacks matching that Mega Pokémon’s type receive an additional boost, but multiple Mega Pokémon do not stack beyond the highest applicable boost. Niantic says an eligible Pokémon can be Mega-Evolved from the raid lobby, so you can make this choice before the battle.
What Mega Evolution changes—and what it does not
The Pokémon GO Help Center (Niantic) says, “Trainers can only have one Mega-Evolved Pokémon active at a time.” It also states, “Also, a Pokémon’s Fast and Charged Attacks don’t change when they’re Mega-Evolved.” Mega Evolution can provide the team benefit described above, but it does not replace the Pokémon’s existing moves with different attacks.
Rank #2
- Catch Pokémon and track your rest rhythm with the Pokémon GO Plus + accessory!
- Keep track of your sleep with the press of a button
- Press and hold the central button on the Pokémon GO Plus + accessory and place it by your pillow to track your rest rhythm on the Pokémon Sleep app
- There’s a Pikachu within your Pokémon GO Plus + that can sing you lullabies and act as your morning alarm; Pikachu grows friendlier the more you sleep, unlocking even more sounds!
- Spin PokéStops or throw Poké Balls automatically in Pokémon GO for hands-free gameplay (and Great Balls and Ultra Balls can be thrown too!)
Niantic says Mega Evolution lasts eight hours. Check the in-game Mega Evolution details for the Pokémon you plan to use before relying on its active duration.
Raid rewards and the catch encounter
Winning a Mega Raid awards Mega Energy and an opportunity to catch the raid boss. The amount of Mega Energy depends on how quickly the group defeats the boss; the Pokémon GO Help Center (Niantic) states, “The amount of Mega Energy you’ll receive from a Mega Raid Battle depends on how quickly you defeat the Raid Boss.” Mega Energy is specific to the Pokémon species.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Rank #3
- Catch Pokémon and track your rest rhythm with the Pokémon GO Plus + accessory!
- Keep track of your sleep with the press of a button
- Press and hold the central button on the Pokémon GO Plus + accessory and place it by your pillow to track your rest rhythm on the Pokémon Sleep app
- There’s a Pikachu within your Pokémon GO Plus + that can sing you lullabies and act as your morning alarm; Pikachu grows friendlier the more you sleep, unlocking even more sounds!
- Spin PokéStops or throw Poké Balls automatically in Pokémon GO for hands-free gameplay (and Great Balls and Ultra Balls can be thrown too!)
After the battle, the catch encounter is with regular Gyarados, not Mega Gyarados. A Mega form is not the form you catch from the raid.
Does the raid Gyarados have Aqua Tail?
Not necessarily. Niantic’s announcement for Mega Gyarados Raid Day said that Gyarados encountered in raids during the event on August 31, 2025, would know Aqua Tail. That is a dated event move detail, not a guarantee for ordinary or current Mega Gyarados raids. Check the active in-game raid details or official event announcement for any present-day move availability.
Rank #4
- Designed for GO Plus +: The case is specially designed for GO Plus + and its size fits the GO Plus + so well that the gaming switch will not move around and tumble in the case.
- Premium Silicone Material for Comfort & Safety: Crafted from high-quality silicone, this case delivers a soft, pleasant touch while shielding your Poke GO Plus+ from scratches, dirt, and daily wear.
- Portable Design with Wrist Strap: The built-in hand strap allows you to wear the case on your wrist, ensuring easy portability and hands-free convenience during outdoor adventures.
- Designed for GO Plus +: The case is specially designed for GO Plus + and its size fits the GO Plus + so well that the gaming switch will not move around and tumble in the case.
- Package: Silicone Case x1; Hand strap x1. If you need any support please feel free to contact us.
Is Mega Gyarados currently in raids?
Raid rotations change, and the cited counter guide does not establish whether Mega Gyarados is available in the live rotation now. Check the in-game raid listing for current availability rather than relying on an older guide or event announcement.
Quick Recap
Best Value
- Catch Pokémon and track your rest rhythm with the Pokémon GO Plus + accessory!
- Keep track of your sleep with the press of a button
- Press and hold the central button on the Pokémon GO Plus + accessory and place it by your pillow to track your rest rhythm on the Pokémon Sleep app
- There’s a Pikachu within your Pokémon GO Plus + that can sing you lullabies and act as your morning alarm; Pikachu grows friendlier the more you sleep, unlocking even more sounds!
- Spin PokéStops or throw Poké Balls automatically in Pokémon GO for hands-free gameplay (and Great Balls and Ultra Balls can be thrown too!)
Sources
- Pokémon GO Hub: Mega Gyarados raid guide
- Pokémon GO Help Center (Niantic): Mega Evolution
- Pokémon GO Help Center (Niantic): Mega Raids
- Pokémon GO: Mega Gyarados Raid Day announcement
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
