"One of a variety of mysterious Mega Stones. Have Heracross hold it, and this stone will enable it to Mega Evolve during battle."
Effect
Held: Allows Heracross to Mega Evolve into Mega Heracross.
Availability
Category
Mega Stones
Cost
Cannot be bought.
Game Availability
X YSun MoonUltra Sun Ultra MoonLets Go Pikachu Lets Go EeveeSword Shield