Electric Revelation is a common Instant card from Innistrad: Midnight Hunt (MID), collector number 135. Current market price: $0.20 (foil $0.31), TCGplayer market prices via Scryfall.
As an additional cost to cast this spell, discard a card. Draw two cards. Flashback {3}{R} (You may cast this card from your graveyard for its flashback cost and any additional costs. Then exile it.)