Galvanic Iteration is a rare Instant card from Innistrad Remastered (INR), collector number 430. Current market price: $0.35 (foil $0.40), TCGplayer market prices via Scryfall.
When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. Flashback {1}{U}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)