Breath Weapon Admixture

Choose one type of energy other than that normally associated with your breath weapon, which you use as part of casting this spell: acid, cold, electricity, or fire. You can modify your breath weapon to add an equal amount of the energy you choose. For example, an ancient red dragon whose breath weapon normally deals 26d6 points of fire damage could use this spell to produce a cone dealing 26d6 points of fire damage plus 26d6 points of acid damage. Even opposed types of energy, such as fire and cold, can be combined using this spell. The modification applies only to the breath produced as part of the casting.