Dim sparks toward glow

Your opponent can't win, and you can't lose, until all opponent's spells on battlefield, graveyard, and in hand, have been exiled.
{b}{b}{b}{b}{w}-Exile all spells in opponent's battlefield, graveyard, and in hand.
{b}{b}{b}{b}{w}-turn this card into a creature.
"this is the last one remaining and it will bring forth a new brightness"