Joy Taylor | Last Updated: Mar. 26, 2026
Hands-on testing conducted primarily on smartphones capable of running Pokémon GO smoothly, including the iPhone 11–iPhone 15 series, Samsung Galaxy S21–S24, Google Pixel 6–8, and similar mid-to-high-end Android gaming devices. Optimization strategies are based on the current standard where most users are running iOS 16–18 or Android 11–14.
Returning to Pokémon GO or gearing up for a major limited-time event can feel completely overwhelming when you are staring down a Mega Metagross raid boss with upwards of 50,000 CP. You know this Steel/Psychic juggernaut is a top-tier attacker, but the mechanics of unlocking its power can be confusing and resource-heavy. How do you gather the required 200 Mega Energy without wasting a dozen premium raid passes? Is it really worth the Stardust investment?
This guide strips away the fluff and gives you the exact numbers, UI steps, and hardcore raid-lobby tips you need to upgrade your roster. We will show you precisely how to farm energy, beat the boss efficiently, and build an unstoppable battle team without draining your hard-earned resources.
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How to Unlock Mega Metagross: Candy Pipeline and UI Steps
The procedure to Mega Evolve in Pokémon GO requires a specific resource workflow that differs significantly from classic mainline Pokémon games. Instead of simply attaching a Mega Stone to your Pokémon, you must gather a specialized consumable resource called Mega Energy.
First, you must complete the Beldum evolution line. The sequence requires:
- 25 Beldum Candy to evolve Beldum into Metang.
- 100 Beldum Candy to evolve Metang into Metagross.
Once you have a Metagross, you need exactly 200 Mega Energy for the very first evolution.
To actually trigger the evolution, do not look in your general item inventory. You must click into the specific Pokémon’s summary screen (the page where you see its CP, HP, and attacks). Scroll down just below the “Power Up” button, and you will see the glowing “Mega Evolve” button.
The fastest way to gather this initial burst of energy is by participating in Mega Raids when Mega Metagross is featured as the boss. Winning these raids yields varying amounts of energy—typically between 150 and 250—depending on how fast your lobby defeats the boss. By grouping up with other trainers during a Raid Day event and taking the boss down quickly, you can hit that 200-energy threshold in just one or two successful raids.
Learn More：All Shiny Eevee Evolutions: The Complete Pokémon GO Guide >
🚨 WARNING: Do Not Evolve Without Meteor Mash!
Before you spend a single point of Mega Energy, you must check your Metagross’s moveset.
⚠️ PRO-TIP: The Meteor Mash Requirement
For a returning player wanting to optimize raid passes, Mega Evolving a Metagross with Flash Cannon or Psychic instead of its Legacy move, Meteor Mash, is a massive waste of 200 Mega Energy. Meteor Mash is absolutely mandatory for maximizing your Damage Per Second (DPS). If your high-IV Metagross does not have it, use an Elite Charged TM to teach it this move before you invest your energy and Stardust.
While Mega Metagross has high base stats, Meteor Mash is what transforms it into a top-tier powerhouse. Applying this specific attack makes the evolution entirely worth your investment.
Optimized Mega Levels vs. Casual Play: Managing Your Resources
Once you understand how to Mega Evolve and have collected your initial 200 energy, you face a critical resource management decision. Here is an expert insight that many players miss: You will waste massive amounts of Mega Energy if you repeatedly Mega Evolve different Pokémon instead of leveling up one specific partner.
In Pokémon GO’s Mega Level system, repeatedly evolving the same Metagross increases its Mega Level over time (Base, High, and Max levels). This dramatically reduces the energy cost of future evolutions and unlocks massive daily bonuses, such as extra catch candy (XL Candy) and global raid damage boosts for your lobby.
Focusing your resources on one high-IV Metagross rather than multiple average ones is the ultimate long-term strategy.
| Feature / Metric | Manual Casual Play (Multiple Metagross) | Optimized Technique (One Primary Metagross) |
|---|---|---|
| Energy Cost | Always costs 200 Energy per new Metagross. | First time costs 200. Drops to 40, 20, or 10 Energy, eventually becoming free after the cooldown. |
| Resource Drain | High drain; requires constant premium raiding. | Low drain; highly sustainable and mostly passive. |
| Bonus Output | Base level bonuses only. | Maximum XL Candy chance and Catch XP bonuses at Max Level. |
| Time Investment | High time cost waiting for raid rotations. | Efficient; allows you to play on your own schedule. |
Optimizing just one ensures you get the maximum return on a minimal long-term investment.
Mega Metagross Raid Guide: Counters and Sweaty Gamer Tips
Before you can harvest energy, you must successfully defeat the Mega Raid boss, which can exceed 50,000 CP when weather-boosted. Mega Metagross takes super-effective damage from Fire, Dark, Ghost, and Ground type attacks.
Build your team using these top-tier counters:
- Fire-types: Reshiram and Mega Charizard Y provide immense damage output.
- Ghost-types: Mega Gengar and Origin Forme Giratina excel at dealing rapid, super-effective hits.
- Dark-types: Hydreigon and Tyranitar offer essential bulk to survive long battles.
- Ground-types: Primal Groudon and Therian Landorus are reliable for heavy, sustained attacks.
Having the right Pokémon isn’t enough; you need to know how to pilot them in the lobby. Here are advanced tips to save your revives and maximize your damage contribution:
🎮 ADVANCED RAID LOBBY TIPS
The Slot 2 Gengar Trick: Mega Gengar is an incredible Ghost-type counter, but it is incredibly glassy. If you put Mega Gengar in your very first slot, the raid boss’s “invisible” fast attacks right at the “GO!” screen (especially if it has Zen Headbutt) will likely instakill your Gengar before you can even attack. Put Mega Gengar in your second slot. Let a bulky Pokémon like Tyranitar or Hydreigon take the opening hits, then switch or let them faint naturally.
Dodging Earthquake: Metagross’s Earthquake attack is notorious for wiping out Fire and Ghost-type counters. The tricky part? The actual damage window hits surprisingly late in the animation. Don’t panic-swipe immediately when you see the text. Wait for the visual ground eruption to begin under your Pokémon, then swipe left or right.
The Raid Lobby Glitch: During busy Raid Days, you might load into a raid with a blank white screen or frozen timers. Pre-build your Battle Party beforehand so the game doesn’t have to auto-select your team while lagging.
Passive Energy & Cooldown Mechanics: The Exact Math
To address the common lack of clear explanations regarding daily mechanics, let’s break down exactly what happens after your first evolution and how you can get more energy without spending raid passes.
Once you register Mega Metagross in your Mega Pokédex, a Mega Evolution cooldown timer begins. If you wait out the timer, you can evolve that specific Metagross again for absolutely free. If you cannot wait, you can spend a sliding scale of Mega Energy to bypass the timer.
Here is the exact math for the cooldown timers and bypass costs based on your Pokémon’s Mega Level:
- Base Level (1 Evolution): 7-day cooldown. Bypassing immediately costs 40 Energy. This cost decreases by roughly 5-6 Energy for every day that passes.
- High Level (7 Evolves): 5-day cooldown. Bypassing immediately costs 20 Energy. This cost decreases by 4 Energy for every day that passes.
- Max Level (30 Evolves): 3-day cooldown. Bypassing immediately costs just 10 Energy. This cost decreases by roughly 3 Energy for every day that passes.
How to Farm Passive Energy (Buddy Walking):
If you run out of energy and the boss is no longer in raids, you do not have to wait for the next event. By setting any Pokémon from the Beldum family as your active Buddy, you will earn Mega Energy simply by walking—provided you have already unlocked the Mega Evolution at least once.
The exact distance requirement is a 5km buddy distance. Every time you walk 5 kilometers with your Beldum, Metang, or Metagross buddy, you will receive 25 Mega Energy (along with the standard chance for Beldum Candy and XL Candy). This passive technique ensures you can slowly farm your way back to max energy on your own schedule.
Learn More：How to Increase Shiny Odds in Pokémon GO: The Real Strategy >
Is Mega Metagross Worth the Investment?
When evaluating premium Steel-type attackers, Mega Metagross frequently outpaces heavy hitters like Shadow Metagross and Dusk Mane Necrozma in sheer Damage Per Second (DPS) and Total Damage Output (TDO).
While Dusk Mane Necrozma is an absolute monster, Mega Metagross brings an invaluable utility to group raids: The Mega Boost. While Mega Metagross is active on the field, every other player in the raid using Steel or Psychic-type attacks receives a massive 30% damage boost. Its massive Defense stat allows it to anchor your team and stay on the field longer, maximizing this damage boost for your entire lobby during challenging Fairy, Ice, or Rock-type raids.
It is undeniably one of the strongest PvE tools in the entire game.
Frequently Asked Questions
Even with a strong strategy, trainers often have specific questions. Here are the direct answers you need.
- How much Mega Energy do I need to Mega Evolve Metagross?
- The initial evolution requires 200 Mega Energy. Subsequent evolutions cost significantly less (40, 20, or 10 depending on the Mega Level), eventually becoming free after the cooldown timer expires.
- Where is the Mega Evolve button located?
- It is located on the individual Pokémon’s status screen (where you view its stats and moves), directly beneath the “Power Up” button.
- Can Mega Metagross be shiny?
- Yes. If you evolve a shiny Metagross, its Mega form will also be shiny, featuring striking silver and gold aesthetics.
- How long does Mega Metagross stay in its Mega form?
- It remains in its Mega form for exactly 8 hours before reverting to its standard state.
Overcoming the confusion surrounding Mega Evolutions in Pokémon GO does not require endless grinding or wasted raid passes. By following this structured method, you can seamlessly gather your initial 200 energy, conquer limited-time raids with smart dodging and proper team sequencing, and maximize your Stardust investment through the Mega Level system.
Remember: Never evolve without Meteor Mash, use the 5km buddy system to farm passive energy, and focus all your resources on a single, high-IV Metagross to provide a lasting powerhouse for your battle roster. Take control of your gameplay, prep your raid team, and jump into the next event with absolute confidence.
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