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 modern, Legal in duel, Legal in legacy, Legal in brawl, Legal in pioneer, Legal in commander, Legal in timeless, Legal in vintage, Legal in gladiator, Legal in penny, Legal in oathbreaker, Legal in historic Price: $4.49 Foil price: $3.96