Kayla's Reconstruction is a rare Sorcery card from The Brothers' War Promos (PBRO), collector number 10p. Current market price: $0.25, TCGplayer market prices via Scryfall.
Look at the top seven cards of your library. Put up to X artifact and/or creature cards with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.