Collective Inferno [ECL - 132]

• Set: Lorwyn Eclipsed
• Number: 132
• Rarity: Rare

Rules Text:

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.