Ramunap Ruins is a special Land — Desert card from Time Spiral Remastered (TSR), collector number 409. Current market price: $0.56 (foil $12.31), TCGplayer market prices via Scryfall.
{T}: Add {C}. {T}, Pay 1 life: Add {R}. {2}{R}{R}, {T}, Sacrifice a Desert: This land deals 2 damage to each opponent.