The Second Coming

Choose one —
•Exile all cards from opponents graveyards.
•Exile all artifacts your opponents control.
•Exile all creatures.
{bull}Exile all enchantments.
{bull}Exile all planeswalkers.
If this spell was cast from your graveyard, replace "choose one" with "choose three"
Flashback {4}{w}{w}{w} (You may cast this card from your graveyard for its flashback cost. Then exile it.)