Sauron the Fallen Maia

Trample, Hexproof, Indestructible.
All Wraiths get +1/+1.
When Sauron enters the battlefield, search
your library or Graveyard for 3 Wraith
Creatures and place them on the battlefield.
{4}{t} Return Wraith Creature from the
Graveyard to the Battlefield.