A special distribution for Pokémon Ga-Olé is set to kick off later this month in Japan. From March 21, you can visit any Pokémon Center with a Pokémon Ga-Olé station to receive a Mega Charizard Y disc, which can be used to Mega Evolve Charizard into Mega Charizard Y. This offer won’t be available at some Pokémon Center locations. To learn more about this Pokémon Ga-Olé promotion, click here.
Source: Official Pokémon Ga-Olé website