Nasus, Guardian of the Gates

Vigilance, trample, haste
{b}{b}, Sacrifice another creature: Scry 1. Each
opponent loses 1 life and you gain 1 life.
{r}{r}, Discard a card: Nasus deals 2 damage to
each opponent.
Whenever Nasus, Guard of the Gates attacks
and isn't blocked, you may cast an instant or
sorcery card from your hand without paying its
cost.
Players can't cast spells from graveyards.