Recoup | Magic: The Gathering
Formats Recoup is Legal in
Official Oracle Text for Recoup
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Official Rulings for Recoup
10/4/2004 : For cards with an X (or Y) in the mana cost, you choose these values at the time you play the spell and your choice is used to set the mana cost that Flashback requires.
10/4/2004 : If the card already has a Flashback ability, a second Flashback ability is added. The card can be cast using either.
10/4/2004 : The mana cost for the card is determined at the time you would pay the cost. It is not frozen at an earlier time.