Magery
Theme
Collective Inferno
3RR
Enchantment
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.
Prices
EUR Foil
$1.45
EUR Nonfoil
$0.87
TIX Nonfoil
$0.02
USD Foil
$1.70
USD Nonfoil
$1.68