Contagion Engine Contagion Engine is one of the original proliferate cards, and it still sees plenty of play
Card prices can be dictated both by the rarity of the card and the card's utility in powerful, relevant decks in one or more formats
They often offer two ready-to-play decks that contain a fixed list of cards, along with the basic rules and potentially some other accessories, making it easy for newcomers to simply pick up the starter set and play
You'll feel like Ugin when you cast one of the 10 ghostfire cards from the set
Dont forget the essential Myr Matrix, either
Submerge Market Price: $4.80, Foil: $60.95 Part of a series of cards that can be cast for free as long as an opponent (thats any opponent, for you Commander players out there) controls an enemy-colored land, Submerge is the most valuable of this series from the Nemesis set by far, as it hoses green Stompy decks with ease