Play with the top card of your library revealed. As long as the top card of your library is black, Vampire Nocturnus and other Vampire creatures you control get +2/+1 and have flying.
Near Mint - $11.80
Lightly Played - $10.60
Played - $8.20
Heavily Played - $7.10
Damaged - $5.90
Near Mint Non-English - $11.80
Lightly Played Non-English - $10.60
Played Non-English - $8.20
Heavily Played Non-English - $7.10
Damaged Non-English - $5.90