Dan uses a deck based on the Mystic Dragons attribute, which has cards to get a lot of gauge or reduce costs for his monsters' abilities or cast spells. His deck also focuses on the evolutionary skill of his buddy, Danzari.
"The world is but a dream, but illusions are what you make of them! Luminize! Illusion Ritual!"
"The world is but a dream," "A dream you can grab with your own two hands!" "Guided by the wisdom of dragons, accept this heavenly blessing! Luminize! Heavenly Helix Ritual!" (Coordinated Luminize with Katarina)