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
But thats not the case with this deck
Biggest Omissions: Sliver Legion $39.99 Glimpse the Unthinkable $34.99 Tezzeret, Agent of Bolas $21.99 Fulminator Mage $19.99 Maelstrom Pulse $17.99 Gaddock Teeg $17.99 Huntmaster of the Fells $9.99 Kitchen Finks $9.99 Nicol Bolas, Planeswalker $8.99 Knight of the Reliquary $8.99 Lightning Helix $5.99 Boros Charm $1.99 Fulminator Mage would have been nice, but it was just printed in Modern Masters 2015 , and (Tarmogoyf excepted) it seems like WotC has been good about not printing the key cards from one Masters set directly in the next
For example, this one is Jund, on the plane of Alara
In my opinion the key buff Slivers are: Sinew Sliver, Sedge Sliver, Predatory Sliver, Muscle Sliver, Megantic Sliver, Cleaving Sliver, and Bonescythe Sliver
An epic battle is guaranteed and thanks to the large amount of unique cards the replayability is enormous