Markon, Master Necrolord

When Markon enters the battlefield, create {x} 2/2 black zombies, where {x} is the number of {x} mana payed to cast Markon.
{b}{b}{t}, Create 2 tapped attacking 2/2 black zombies at instant speed.
{b}{x}, Create {x} 1/1 white and black Traitor Zombies on target opponent's side.