Lake of the Dead [Alliances] SM136 you may put Nether Shadow

you may put Nether Shadow onto the battlefield

sacrifice Eldrazi Monument

The first player may reveal cards from the top of their library until they reveal a creature card

Set: Legends Type: Instant Rarity: Uncommon Cost: {U}{U} Cast this spell only during an opponent's turn after their upkeep step

Creature spells of the chosen type cost {2} less to cast

Lake of the Dead [Alliances] SM136 you may put Nether ShadowSet: Alliances Type: Land Rarity: Rare If Lake of the Dead would enter the battlefield, sacrifice a Swamp instead. If you do, put Lake of the Dead 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}.