What is the maximum Decks that I can build? Jennifer March 16, 2022 21:33 20 is the maximum number of Decks that you can build at one time. Related articles I’m new to Yu-Gi-Oh! MASTER DUEL. How should we start the game? Can I transfer my data to other platforms? What is the recommended specifications to play the game? Could you inform us of upcoming maintenance schedules? Trying to link data with KONAMI ID but there is no linkage category. Comments 0 comments Please sign in to leave a comment.