Electroduplicate is a rare Sorcery card from Foundations (FDN), collector number 85. Current market price: $0.73 (foil $0.94), TCGplayer market prices via Scryfall.
Create a token that's a copy of target creature you control, except it has haste and "At the beginning of the end step, sacrifice this token." Flashback {2}{R}{R} (You may cast this card from your graveyard for its flashback cost. Then exile it.)