Riveteers Overlook is a common Land card from Streets of New Capenna (SNC), collector number 255. Current market price: $0.29 (foil $0.48), TCGplayer market prices via Scryfall.
When this land enters, sacrifice it. When you do, search your library for a basic Swamp, Mountain, or Forest card, put it onto the battlefield tapped, then shuffle and you gain 1 life.