Scrying Sheets is a rare Snow Land card from The List (PLST), collector number CSP-149. Current market price: $4.46, TCGplayer market prices via Scryfall.
{T}: Add {C}. {1}{S}, {T}: Look at the top card of your library. If that card is snow, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.)