Modern is a MTG Format that has no maximum deck size and uses cards exclusively from the Mirrodin card set onwards to the most recent releases.

Your deck must contain a minimum of 60 cards and your sideboard (if you use one) must use no more than 15 cards. Furthermore, with the exception of basic lands and snow-covered lands, your combined deck and sideboard may not contain more than four of any individual card, counted by its English card title equivalent.