Dark Knight, Al'Lathor

Eminence-As Long as this creature is in the command zone or on the battlefield, during your upkeep each opponent losses 2 life and you gain life equal to the total life lost this way.
{2}{b}: Sacrifice another Non-token creature, deal damage equal to its power to another target creature. Gain life equal to its converted mana cost. And Mill cards equal to the toughness of target creature.
{5},{t}: Discard a card from your hand, search your library for a card and add it to your hand.