Contagion Engine [The List] Darkness you may cast this spell

you may cast this spell without paying its mana cost

Jace traced Nahiri to the Singing City

Set: Pro Tour Collector Set Type: Artifact Rarity: Uncommon Cost: {1} As Black Vise enters the battlefield

Sacrifice another creature: Search your library for a card

Contagion Engine [The List] Darkness you may cast this spellSet: The List Type: Artifact Rarity: Rare Cost: {6} When Contagion Engine enters the battlefield, put a 1 1 counter on each creature target player controls. {4}, {T}: Proliferate, then proliferate again. (Choose any number of permanents and or players, then give each another counter of each kind already there. Then do it again.)