Stealing Coins from the Pond

Until end of turn, whenever a creature deals
combat damage to an opponent, create a
Treasure token.
Buyback — Sacrifice a Treasure token: (You may sacrifice a Treasure token as you cast this spell. If you
do, put this card into your hand as it resolves.)
Flashback {3}{b} (You may cast this card from your graveyard for its flashback cost. Then exile it.)