Math Magician

When Math Magician enters the battlefield, target player puts the top X cards of his or her library into his or her graveyard where X is the number of creatures on the battlefield divided by the number of players plus the total life of all players divided by ten minus the number of cards in all graveyards divided by the number of creatures in all graveyards times the number of cards in all players' hands minus the total number of lands on the battlefield. ( Round to the nearest whole number if needed