Note: MtG Calculator has Google Admob Ads. Get your "Cardboard Crack" on with the MtG Calculator! It allows up to 8 Players and includes a dice roller! Enjoy! -- In a game of Magic, two or more players are engaged in a battle as powerful wizards called "planeswalkers". A player starts the game with twenty "life points" and loses when he or she is reduced to zero. Players lose life when they are dealt "damage" by being attacked with summoned creatures or when spells or other cards cause them to lose life directly. A player can also lose if he or she must draw from an empty deck (called the "library" during the game). In addition, some cards specify other ways to win or lose the game.