Keldon Megaliths is a uncommon Land card from Duel Decks Anthology: Jace vs. Chandra (JVC), collector number 58. Current market price: $0.28, TCGplayer market prices via Scryfall.
This land enters tapped. {T}: Add {R}. Hellbent — {1}{R}, {T}: This land deals 1 damage to any target. Activate only if you have no cards in hand.