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 timeless, Legal in historic, Legal in legacy, Legal in modern, Legal in vintage, Legal in commander, Legal in penny, Legal in gladiator, Legal in oathbreaker, Legal in brawl, Legal in duel, Legal in pioneer Price: $4.97 Foil price: $3.98