60.
You are allowed 40 to 60 cards in your deck.
A standard deck of playing cards typically contains 52 cards, with no specific limit on the number of "V cards" allowed.
The maximum number of cards allowed in a Magic: The Gathering deck, as per the deck limit rules, is 250 cards.
60, You can only have four cards with the same name in the deck.
In the official rules, a deck can have up to 4 EX cards.
there is no limit
59
The maximum is 60 in the main deck.
In most trading card games, including Pokmon and Yu-Gi-Oh!, players are typically allowed to have up to 4 copies of a specific VMAX card in their deck.
It is currently now called the "Extra Deck", and a maximum of 15 cards (Fusion, Synchro, Xyz Monsters) are allowed.
A Yu-Gi-Oh deck can have a maximum size of 60 cards.
A Yu-Gi-Oh deck may consist of 40-60 cards. You are also allowed 15 cards in a side deck. Along with these rules you may also have a side deck of 15 cards that consists of only synchro monsters and fusion monsters.