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) [Lorwyn Eclipsed]](http://paradoxtcg.com/cdn/shop/files/671510_7d905619-d805-474a-817d-28f3d3a96c14.jpg?v=1776236958&width=1445)
