Mega Gyarados
Mega-evolved form of Gyarados. Water / Dark-type. Mega bonus during the 8-hour window: +10% damage to all matching-type attackers in your party (+30% during raids). First-time energy cost: 300. Recurring: 60.
Compared to standard Gyarados (#0130): 237 ATK / 186 DEF / 216 STA. Mega Gyarados gains +23% attack while Mega-evolved.
Required to unlock Mega Gyarados for the first time. After this, the recurring cost applies for subsequent evolutions.
Cost after the first evolution. Drops further with Mega Level progression — Super Max Level cuts cost to ~40 energy with a 1-day cooldown.
- ▸Beat Mega Gyarados Mega Raids — primary source, 30-50 Mega Energy per win depending on damage + remaining time bonus.
- ▸Walk Gyarados as your buddy — once you've Mega-evolved once, walking earns 25 Mega Energy per 1 km. Best long-term passive source.
- ▸Special Research lines — occasionally award 100-200 Mega Energy as a one-time bonus.
- ▸Field Research — themed events offer Mega Energy as task rewards.
When Mega Gyarados is active during a raid, every team member with a matching primary type (Water) gets +30% damage. Non-matching teammates get +10%.
This stacks with the standard weather boost (+20%) — perfect timing: Mega-evolve right before the raid lobby starts, weather matches the type, then everyone deals 156% normal damage.
How much Mega Energy does Mega Gyarados cost?
300 for the first-ever evolution, then 60 for each recurring Mega evolution. Cost drops further as you level up the Mega (Super Max Level = 40 energy with 1-day cooldown).
How do I get Mega Gyarados Energy in Pokémon GO?
Sources: (1) Defeat Mega Gyarados in Mega Raids — 30-50 Energy per win, (2) walk Gyarados as your buddy after the first Mega evolution — 25 Energy per km, (3) Special Research line rewards, (4) Field Research tasks during themed events.
What's the stat boost on Mega Gyarados?
Mega Gyarados has 292 Attack, 247 Defense, 216 Stamina. That's +23% attack vs. the standard form. Mega-evolution also unlocks the raid damage bonus to teammates.
What's the raid bonus of Mega Gyarados?
Mega Gyarados grants +30% damage to all Water-type attackers in your raid party during its 8-hour active window. Non-matching teammates get +10%. This is the single largest force-multiplier in Pokémon GO PvE.
How long does Mega Gyarados last?
Each Mega evolution lasts 8 hours, then the species reverts to standard form. You can re-Mega the same species multiple times, but each cycle costs Mega Energy.