Black Vise | Magic: The Gathering
Formats Black Vise is Legal in
Official Oracle Text for Black Vise
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in his or her hand minus 4.
Official Rulings for Black Vise
10/1/2009 : If the chosen player has four or fewer cards in his or her hand as Black Vise's ability resolves, the ability just won't do anything that turn.