The Gyaradosite (Mega Stone used to evolve Gyarados into its Mega Counterpart, Mega Gyarados. The stone is found near the three waterfalls in Couriway Town and is available in both Pokémon X and Pokémon Y.) is a
Gyaradosite is held by Japanese Pokémon Center Battle Championship Gyarados.
|Flavor Text||One variety of the mysterious Mega Stones. Have Gyarados hold it, and this stone will enable it to Mega Evolve during battle.|