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 (Extended Art) [Lorwyn Eclipsed]](http://paradoxtcg.com/cdn/shop/files/671509_0515e4fa-8fd8-488d-841b-5aff44dd17c6.jpg?v=1776254634&width=1445)
