Everything You Need to Know About Deckbuilding Rules in Yu Gi Oh Yu Gi Oh Guides Out of Games Yu Gi Oh! Master Duel: How To Build A Balanced Deck 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 Why do some decks have more than 40 cards? : r yugioh 1st Edition YuGiOh Yugi's Legendary Decks YGLD enA ($2 Minimum Order Required) eBay What is the card limit in a full deck?