“Rebound” means “If this spell was cast from your hand, instead of putting it into your graveyard as it resolves, exile it and, at the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.”The spell normally goes to the graveyard as the last step of resolving, Rebound changes where it goes in some cases instead. However, Beacon of Unrest has an instruction to move the spell to the library before it finishes resolving so rebound wouldn't apply even if it had it via Cast Through Time
6/15/2010 If a spell moves itself into another zone as part of its resolution (as Arc Blade, All Suns' Dawn, and Beacon of Unrest do), rebound won't get a chance to apply.
Edited Todd Bussey (Jan. 22, 2013 11:56:02 AM)
Originally posted by CR:
“Rebound” means “If this spell was cast from your hand, instead of putting it into your graveyard as it resolves, exile it and, at the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.”
“Buyback [cost]” means “You may pay an additional [cost] as you cast this spell” and “If the buyback cost was paid, put this spell into its owner’s hand instead of into that player’s graveyard as it resolves.”
Edited Josh Stansfield (Jan. 22, 2013 12:52:29 PM)
Originally posted by Josh Stansfield:CR
“Rebound” means “If this spell was cast from your hand, instead of putting it into your graveyard as it resolves, exile it and, at the beginning of your next upkeep, you may cast this card from exile without paying its mana cost.”
“Buyback [cost]” means “You may pay an additional [cost] as you cast this spell” and “If the buyback cost was paid, put this spell into its owner’s hand instead of into that player’s graveyard as it resolves.”
Buyback creates a replacement effect, and so does Rebound. Both are replacing the same thing: Put this spell into a graveyard as it resolves. As the controller of the affected object, you choose which to apply first, and the other becomes no longer applicable. So you can either return it to your hand or exile it with rebound.
Presumably, you'll choose to put it in your hand since you went to the effort to pay the Buyback cost… ;)
Originally posted by Gareth Tanner:
But wouldn't Buyback be classed as a self replacement effect and as such is applied first?
6/15/2010 If a replacement effect would cause a spell with rebound that you cast from your hand to be put somewhere else instead of your graveyard (such as Leyline of the Void might), you choose whether to apply the rebound effect or the other effect as the spell resolves.