500 card binder TopDeck Pro Style 144SC Topdeck 500 Card Pocket Binder

The anti-dust coating repels most dirt

It also does not contain "The Winged Dragon of Ra", "Slifer the Sky Dragon" or "Obelisk the Tormentor", as they do not feature in Stairway to the Destined Duel

While Battery Charger can be useful for its specific purpose, a more versatile option could be Monster Reborn, which allows you to Special Summon any monster from either player's Graveyard without needing to pay Life Points

Cursed with Awesome: Her violin is connected to a certain hostile Eldritch Abomination, which can (and will) attack her if given a chance, but its magic also allows her to help her teammates in their world-saving quest