Up for sale is the Land-fetching Bad River, an uncommon card from the Mirage expansion of Magic: the Gathering. These are the original, black-bordered, English version.
Bad River: Land; Bad River comes into play tapped; tap and sacrifice Bad River to search your library for an Island or Swamp card and put it into play; then shuffle your library.
These cards are all in at least Very Fine condition, with most being in unplayed, Mint/Near Mint condition.