## Energy Admixture (Metamagic) *You can modify a spell that uses one type of energy to add an equal amount of another energy type.* **Prerequisite:** [[Energy Substitution]] **Benefit:** Choose one type of energy (acid, cold, electricity, or fire) that matches an energy type you have selected for substitution via the [[Energy Substitution]] feat. You can then modify any spell with an energy descriptor by adding an equal amount of the chosen type of energy to the spell's normal effects. Even opposed types of energy (such as fire and cold) can be combined using this feat. An energy admixed spell uses up a spell slot four levels higher than the spell's actual level. As well, the spell's descriptor changes to include both energy types present in the spell—for example, the acid _fireball_ described above is an evocation (acid, fire) spell. **Special:** You can gain this feat multiple times, choosing a different type of energy each time. The type of energy selected with this feat must match a type of energy you have also selected for substitution via the [[Energy Substitution]] feat. You can use Energy Admixture to further alter a spell that has already been modified with [[Energy Substitution]], and you can also admix your chosen energy type with a spell that already uses the same type, in effect doubling its normal damage dice.