Encroaching Doom

At the beginning of each player's upkeep, that player draws two cards and loses two life.
{1}{b}, Each creature your opponents control get -1/-1 for as long as you control Encroaching
Doom.
{1}{b}{b}, Destroy target creature, create a 2/2 zombie creature token.
{9}{b}{b}{b}, Each opponent loses the game.