Base Camp is a uncommon Land card from Zendikar Rising (ZNR), collector number 257. Current market price: $0.20 (foil $0.27), TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Cleric, Rogue, Warrior, or Wizard spell or to activate an ability of a Cleric, Rogue, Warrior, or Wizard.