Whenever one or more Vampires you control attack, create a Blood token.
(It's an artifact with "
,
, Discard a card, Sacrifice this token: Draw a card.")
,

, Pay 1 life: Create a 1/1 white and black Vampire creature token with lifelink.


,

, Sacrifice this artifact and thirteen Blood tokens: Each opponent loses 13 life and you gain 13 life.