Obsessive Search is a common Instant card from Dominaria Remastered (DMR), collector number 61. Current market price: $0.20 (foil $0.27), TCGplayer market prices via Scryfall.
Draw a card. Madness {U} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)