The Sky Tear Rayquaza Chapter is the fourth Battrio O series of disks. This set focuses upon several legendary Pokémon primarily seen within the games Pokémon Emerald & HeartGold/SoulSilver and continues with the changes brought in in the previous sets. It also includes the first non-Arceus discs that have a different attack type to the Pokémon. This set also includes a secret disk, labelled with a star.
