Terramorphic Crossroads

Exile the top X cards of your library. When you
do, choose one --
-- Add {r}{r} to your mana pool for each land card
exiled in this way. You may cast nonland cards
exiled in this way until end of turn.
-- Put each nonland card exiled in this way into
your hand. Scry X, where X is the number of
land cards exiled in this way.