Constant Denial

Buyback {2}{u} (You may pay an additional
{2}{u} as you cast this spell. If you do, put this card
into your hand as it resolves.)
Return target creature to its owner's hand.
Rebound (If you cast this spell from your hand,
exile it as it resolves. At the beginning of your next
upkeep, you may cast this card from exile without
paying its mana cost.)