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 Legality: Legal in oathbreaker, Legal in penny, Legal in legacy, Legal in vintage, Legal in commander, Legal in gladiator, Legal in modern, Legal in brawl, Legal in pioneer, Legal in duel, Legal in historic, Legal in timeless Price: $4.66 Foil price: $3.70