Character Training (Energy Substitution)

Magic Substitution Training (Energy) I: You train to immerse yourself in an energy type, learning all of its subtleties and mysteries and becoming dulled to its effects against your body in the process. You substitute one energy type for any the type normally used by a class power that you can cast. This embodiment of the elemental type in you creates a weakness for its opposed type.

See: Weaknesses | See: Elemental Energy Types