Xira Arien, Dressed for Death

Eminence- At the beginning of your upkeep;
each player discards a card, sacrifices a creature,
or loses 3 life, unless your life total is the highest
or tied for the highest. Whenever a card leaves
your graveyard, each opponent loses 1 life.
{p/b}{p/r}{p/g}, {t}: Mill three cards, then return up
to one card from your graveyard to your hand.