Name: Marsh Gas Cost: B CMC: 1 Color: B CID: B Type: Instant Rules Text: All creatures get -2/-0 until end of turn. Set/Rarity: The Dark common, Fourth Edition Foreign Black Border common, Fourth Edition common, Renaissance common Legality: Legal in predh, Legal in premodern, Legal in commander, Legal in duel, Legal in oldschool, Legal in paupercommander, Legal in vintage, Legal in legacy, Legal in oathbreaker, Legal in pauper Price: $0.08