Vampire Nocturnus 
Creature — Vampire
Play with the top card of your library revealed. As long as the top card of your library is black, this creature and other Vampire creatures you control get +2/+1 and have flying.
Legality
standardNOT LEGALpioneerNOT LEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL