Lake of the Dead is a rare Land card from Alliances (ALL), collector number 140. Current market price: $123.36, TCGplayer market prices via Scryfall.
If this land would enter, sacrifice a Swamp instead. If you do, put this land onto the battlefield. If you don't, put it into its owner's graveyard. {T}: Add {B}. {T}, Sacrifice a Swamp: Add {B}{B}{B}{B}.