Petals of Insight is a common Sorcery — Arcane card from Modern Masters (MMA), collector number 60. Current market price: $0.21 (foil $0.36), TCGplayer market prices via Scryfall.
Look at the top three cards of your library. You may put those cards on the bottom of your library in any order. If you do, return Petals of Insight to its owner's hand. Otherwise, draw three cards.