Frustrated with not being able to go where the wind takes her. Ariel and other gods are powerless if they roam out of island's range. She turned to the Dark Alchemist to help them find an external power source. In return, he will have unlimited access to their elemental powers. She and other gods are ready to wreck havoc in exchange for freedom.
Each mastery level adds another card to the cardpool for defeating Ariel. Each of the bronze, silver, and gold mastery levels unlocks a new card, while it takes all three diamond and onyx levels to unlock a single card.