One benefit of playing Bears over a more popular, heavily-supported creature type is the opportunity for great puns (ForBEAR's Blade narrowly misses the mark)
The Enduring Enchantments Commander Masters Commander Deck set includes 1 ready-to-play White-Black-Green deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 2 special treatment cards, with 1 Traditional Foil Common or Uncommon and 1 nonfoil or Traditional Foil Rare or Mythic Rare), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card.
You could supplement your vampires with a few bats like Mirkwood Bats and Aclazotz, Deepest Betrayal, but at its core, this wants to be a vampire deck
The Black Gate The Black Gate is a nice utility land that can help you to attack a player freely if they have the most life
Given were in white-black you could probably go all-in on tutors, combo pieces, discard and removal and just hope to sneak a fast win
You will learn to earn death. Volrath Magic the Gathering is TM and copyright Wizards of the Coast, Inc, a subsidiary of Hasbro, Inc