Necromancer of Dol Guldur

At the beginning of your upkeep, exile a
card from your graveyard.
When destroyed, create 3 1,1 spirit tokens.
{b} Sacrifice Place exiled creatures on the battlefield. Lose 1 life per creature ressurected in this way.
It is the shadow of an ancient horror. One that
can summon the spirits of the dead. A Necromancer has come!