How to Get Mega Stones in Pokemon GO is a question that most trainers ask, but will never find the answer to.
The sole reason for this is the way Niantic designed the system of mega evolution in Pokemon GO.
Established in Pokemon lore in the X and Y games, Mega Evolution is a system in which certain Pokemon can gain incredible time-limited power by reaching a special evolutionary stage.
How to Get Mega Stones in Pokemon GO
As shown by YouTuber Go Trainer Hub, Mega Evolution in Pokémon Go requires trainers to obtain a game-exclusive resource called Mega Energy, not the often mistaken process found in other Pokemon games involving mega stones.
Getting Mega Energy is quite simple in Pokemon GO.
First, trainers must decide which Pokemon they want to Mega Evolve as they are only allowed to have one Mega-Evolved Pokémon at a time. Mega Evolving another Pokémon causes the first Mega-Evolved Pokémon to revert back to its original form.
Next, trainers will need to complete the Mega Raid that features their desired Mega-Evolved Pokemon as fast as possible in order to maximize the amount of Mega Energy received.
Once a trainer has collected enough Mega Energy, they can Mega Evolve the Pokemon in its CP screen. Future Mega Evolutions of that Pokemon will cost a fraction of the Mega Energy previously required.