Magic: The Gathering's Magic Duels is available to download for free, and Yu-Gi-Oh! Legacy of the Duelist will set you back around $20 (availability depending on your region).
Check out the details and links below.
Magic Duels [Xbox One: Free to Download]
Immerse yourself in the world of Magic: The Gathering’s exciting new Origins campaign as you play through the stories of five iconic Planeswalkers. Hone your skills and build your deck of spells from an ever-growing library of collectible cards, then take on your friends or thousands of AI opponents in Battle Mode. Enjoy virtually endless gameplay with regular card and content updates, quests and achievements, multiple play modes—including fan favorites like Two-Headed Giant—and fully earnable content.
Yu-Gi-Oh! Legacy of the Duelist [Xbox One: $19.99]
Relive past Dueling glory against Yu-Gi-Oh! characters from the past and present! Compete against other players online with your custom deck, then challenge them in Battle Pack Draft and Sealed Play!