Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard. Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Official Rulings for Forbidden Alchemy
9/22/2011 : If you have fewer than four cards in your library, you'll look at all the cards there and put one into your hand and the rest into your graveyard.
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