Overseer of the Hecatomb

When Overseer of the Hecatomb enters the battlefield, target opponent creates
{x} 0/1 black goat tokens equal to the number of
goat creature cards in your graveyard.
Hecatomb {x}{b/r}{b/r}{b/r}{b/r} ({x} can be paid by sacrificing a Beast, Boar, Elk, Goat, or Ox
creatures on the battlefield.) Target Creature,
Player, or Planeswalker takes 2 damage {x} times.