Sune, Goddess of Rebirth

Eminence - As long as Sune, Goddess of Rebirth
is in the command zone or on the battlefield, you
may summon any creature from your graveyard
for it's original mana cost plus {w/b}.
{x}{w/b}: Return target creature from a graveyard to
play under your control. X equals the target
creature's original converted casting cost.