Name: Barbed-Back Wurm Cost: 4B CMC: 5 Color: B CID: B Type: Creature -- Wurm Pow/Tgh: 4/3 Rules Text: {B}: Target green creature blocking this creature gets -1/-1 until end of turn. Set/Rarity: Mirage uncommon Legality: Legal in premodern, Legal in legacy, Legal in commander, Legal in oathbreaker, Legal in duel, Legal in vintage, Legal in predh Price: $0.24