Dark Herald

{b}{2}Dark Omen, Sacrifice a creature, then look at
the top 3 cards of your opponents library, Pick
one and exile it
{b}{b}{1}Sacrificial Foresight, Sacrifice X creatures,
look at the top X+3 cards of your library,
Choose X cards and put them in your hand, shuffle the rest back into your library
I can do a great many things for you, but I require payment, and not the monetary kind.