You pay all costs and follow all timing rules for cards played this way. For example, if an exiled card is a land card, you may play it only during your main phase while the stack is empty.
As an additional cost to cast this spell, you may blight 1. (You may put a -1/-1 counter on a creature you control.)
Exile the top two cards of your library. If this spell's additional cost was paid, exile the top three cards instead. Until the end of your next turn, you may play those cards.
