Dreaming of a life underwater, Clyde came up with a plan to immerse the town in water and build an underwater kingdom. Although he's a powerful hydromancer, Clyde never learned how to swim. He plans to wear floaties and rely on his minions to help him navigate the waters. He is still deciding between the turtle or dragon floaties.
Each mastery level adds another card to the cardpool for defeating Clyde. 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.