Xander's Lounge is a rare Land — Island Swamp Mountain card from Streets of New Capenna Promos (PSNC), collector number 260p. Current market price: $16.44 (foil $13.45), TCGplayer market prices via Scryfall.
({T}: Add {U}, {B}, or {R}.) This land enters tapped. Cycling {3} ({3}, Discard this card: Draw a card.)