Pit of Offerings is a uncommon Land — Cave card from The Lost Caverns of Ixalan (LCI), collector number 278. Current market price: $0.42 (foil $0.54), TCGplayer market prices via Scryfall.
This land enters tapped. When this land enters, exile up to three target cards from graveyards. {T}: Add {C}. {T}: Add one mana of any of the exiled cards' colors.