Arcane Source (Lightning)

From being exposed to a massive amount of arcane lightning you have gained the ability to use lightning as an arcane source, as well as you are resistant to lightning damage. However you cannot use spells originating from another element. i.e. No fire, water, or earthen based spells, unless approved at the dm's discretion. 

When your lightning is extended from your body as a spell you can feel the waves as if you could close your eyes and sense what the electric was bouncing off of or hitting.