Dragonfire Inspiration( Dragon Magic, p. 17)
You can channel the power of your draconic ancestry into the attacks of your allies.
CHA 11, bardic music, dragonblood subtype,
When you use your bardic music to inspire courage, you can choose to imbue your allies with dragonfire. This choice is made when first activating the ability, and the choice applies to all allies affected.
Each ally so inspired loses the standard morale bonus on weapon attack rolls and damage rolls. Instead, he deals an extra 1d6 points of fire damage with his weapons for every point of morale bonus that your inspire courage ability would normally add to the attack roll. For example, an 8th-level bard using this ability would add 2d6 points of fire damage to his allies' attacks.
If you have the Draconic Heritage feat or if you are a half-dragon, the extra damage is of the energy type (acid, cold, electricity, fire, or sonic) that corresponds to your heritage or your draconic parent instead. It your feat or your parent is not associated with one of these energy types, this feat has no effect for you.