Alucard, the Ceaseless Edge

Flying, First Strike, Vigilance, Deathtouch
{0}: Alucard Regenerates.
Sacrifice a creature: mill the bottom card of target
player's library.
Whenever an enchantment card enters an
opponent's graveyard from anywhere, you gain 1 life
and that player cannot win the game this turn.
At the beginning of each end step, if you gained life
this turn, create a 1/1 red vampire creature token
with Deathtouch.