Krosan Verge is a uncommon Land card from Planechase 2012 (PC2), collector number 123. Current market price: $0.41, TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {C}. {2}, {T}, Sacrifice this land: Search your library for a Forest card and a Plains card, put them onto the battlefield tapped, then shuffle.