Mr.Negative

{3} create a 1-1 demon creature token
{7} put a devil's breath token on up to one target creature when a creature with a devil's breath token on it taps at the same time as another creature put a devil's breath token on that creature at the start of a players turn if any of there creatures have a devil's breath token on it add another one when a creature has five or more devil's breath tokens on it put it into your grave.