Impervious GreatwurmCasting Cost: {7}{G}{G}{G}Card Type: Creature - WurmPower/Toughness: 16/16Card Text: Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.) IndestructibleFlavour Text: The ultimate answer to intrigue and subtlety.Artist: Simon Dominic
or one mana of that creature's color.)