Lord Tirek

Lord Tirek's power and toughness are equal to the number of creature cards in all graveyards.
{2}{b}{r} Sacrifice a creature: Target player discards X amount of cards from the top of his or her library, X being the creature's power. Afterwards, that player can choose target creature discarded this way and put it into play under his or her control.
"I am Lord....Tirek."