Main problem: only 3 card fields, 5 cards in your hand, and a max 30 card deck. That plummets the quality of the game. the 2nd problem is the lack of separation of the cards used btw the different series. I don't want to have to buy mad ARC V packs to get an original DM card, now I have 500 cards I don't want/need. It's also unfair in PVP when u want to duel with just original DM cards, & you're getting murked in the first turn by some tryhard with a whole XYZ & Synchro deck