Name: Collective Nightmare Cost: 2B CMC: 3 Color: B CID: B Type: Instant Rules Text: Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Target creature gets -3/-3 until end of turn. Set/Rarity: March of the Machine uncommon Set Code: MOM-U Legality: Legal in timeless, Legal in brawl, Legal in modern, Legal in gladiator, Legal in oathbreaker, Legal in commander, Legal in pioneer, Legal in historic, Legal in vintage, Legal in duel, Legal in legacy Price: $0.16 Foil price: $0.09