Impassioned Prophet

When Impassioned Prophet enters the
battlefield, look at the top X cards of your
library, where X is the number of instant and
sorcery cards in your graveyard. Then put them
back in any order.
Whenever you draw a card, you may reveal it.
If it's an instant or sorcery card with converted
mana cost 3 or less, you may cast it without
paying its mana cost. If you do, return
Impassioned Prophet to its owners hand.