Here are a few suggestions for keeping your proxy and original magic cards safe: Use card sleeves
This Magic: The Gathering | Avatar: The Last Airbender Scene Boxes, Tea Time at the Jasmine Dragon & The Black Sun Invasion, each contain 6 Traditional Foil Borderless Scene Cards, 6 Art-Only Scene Cards, 3 Play Boosters, and a paper display easel
Its also one of the best options for an aggressive mono-blue commander
5Ds - Crimson Dragon, Revolution Synchron and Wheel Synchron - as well as new Infernoble Knights and Dinosaur cards
Like Balatro, the definition of card is stretched to its limit in D&DG, with your deck quickly filling up with all manner of card-like things including tarot cards, business cards, blood donor cards, Geralt of Riviera