Oracle's Insight is a uncommon Enchantment — Aura card from Born of the Gods (BNG), collector number 47. Current market price: $0.18 (foil $0.47), TCGplayer market prices via Scryfall.
Enchant creature Enchanted creature has "{T}: Scry 1, then draw a card." (To scry 1, look at the top card of your library, then you may put that card on the bottom.)