Mathematically Yugioh How many starter cards should you run in a modern deck? Warning: Very In Depth. : r masterduel Imagine using a Yu Gi Oh deck THIS BIG! Have you ever wondered why we have the 60 card limit for decks? Well, there's one player to thank for it! #yugioh #yugiohtcg #yugiohcards #didyouknow #trivia How many cards should my deck have? I'd say **40**. Yeah 41 or 42 won't hurt a lot, but still the probability of drawing a starter already decreases with that number. Many Amazon.com: Yu Gi Oh KON7KRSD Yugi & Kaiba Reloaded Starter Decks Set of 2, Multi : Toys & Games