BrandolfffWell there's no land cards in this booster box, so you would need to grab some lands somewhere if you dont have some already but its a 360 card booster box, 5 different manna colors, its random pulls sure, but thats about 70 cards of each mana type. You could build 5 mono decks, or choose great synergy mana types and even go dual color or more depending on what kind of build you want to do. The short answer really, if your just going to play casually, then lots of decks.