Perfect for pictures, photos and cards, lightweight, and easy to carry
Under bright tournament lights, glossy sleeves reflect harsh light, making it difficult to read card text
Emperor Dragon of Calamity The effect even lets you play the Dragon Mode from under the Fighter Mode
Also, despite the initial discrepancy of activating this Deck Master ability when Kaiba declared an attack, Noah did later use this ability appropriately (during the Battle Phase before Kaiba declared an attack) after Kaiba used "Quick Attack" to enable his "Twin-Headed Thunder Dragon" to attack
It's pretty cool that the game could potentially be a vehicle to reveal more Digimon
As a starting place, you might decide to build around one of the card games popular archetypes - themes that encapsulate cards keywords, gameplay effects and lore, such as Elemental Hero, Fire Warrior or Vampire