Name: Impervious Greatwurm Cost: 7GGG CMC: 10 Color: G CID: G Type: Creature -- Wurm Pow/Tgh: 16/16 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.) Indestructible Set/Rarity: Guilds of Ravnica mythic, Double Masters 2022 rare Set Code: GRN-M, 2X2-R Legality: Legal in vintage, Legal in modern, Legal in oathbreaker, Legal in gladiator, Legal in legacy, Legal in pioneer, Legal in timeless, Legal in historic, Legal in duel, Legal in penny, Legal in brawl, Legal in commander Price: $5.05 Foil price: $4.12