Windbrisk Heights is a rare Land card from Modern Event Deck 2014 (MD1), collector number 18. Current market price: $0.38, TCGplayer market prices via Scryfall.
Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.) This land enters tapped. {T}: Add {W}. {W}, {T}: You may play the exiled card without paying its mana cost if you attacked with three or more creatures this turn.