Xeara, Titan of Fate's Greed

When Xeara enters the battlefield, sacrifice it
unless it escaped.
Whenever Xeara enters the battlefield or attacks,
you may return target permanent with converted
mana cost 3 or less from your graveyard to the
battlefield, then each opponent loses 3 life, and
you gain 3 life.
Escape-{w}{w}{b}{b}, Exile 5 other cards from your graveyard