Enchantment, 1R (2)
Rare
Chroma — {2}, Sacrifice a creature: Fiery Bombardment deals damage to target creature or player equal to the number of red mana symbols in the sacrificed creature's mana cost.
It kills two beasts with one thrown.
Illus. Nils Hamm

8/1/2008: Chroma abilities check only mana costs, which are found in a card's upper right corner. They don't count mana symbols that appear in a card's text box.
8/1/2008: Chroma abilities count hybrid mana symbols of the appropriate color. For example, a card with mana cost {3}{U/R}{U/R} has two red mana symbols in its mana cost.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern