Vengeful Ghoul

During your upkeep you may pay {5} and target a
white permanent in play. Put that permanent
on top of its owner's library.
{r}: Vengeful Ghoul is +1/+1 when blocking or
being blocked by any humans this turn.
{b}{t}, Sacrifice Vengeaful Ghoul and pay 5 Life:
Search your library and graveyard for one
vampire, reveal it and put it into your
hand. Shuffle.