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.) As this enchantment enters, choose a creature type. Double all damage that sources you control of the chosen type would deal.
![Collective Inferno (Showcase) (Fracture Foil) [Lorwyn Eclipsed]](http://paradoxtcg.com/cdn/shop/files/671511_76ffe38b-44c5-47a1-a1e5-4645d35b0789.jpg?v=1776238878&width=1445)
