Jax ran a hand through her hair, a pensive look on her face. She didn't often sift through John's memories of magical happenings- it was like looking through a Wikipedia of horror movies- but if she tried, she could get her answers pretty quickly. "Turn it into an energy mirror, or a shield, at least. I don't know how many more people are around that'd throw lightning bolts at you, though. And blocking physical objects is a different animal." She shrugged, looking back to Dex and cracking another smile, but whatever crack she was going to make, she covered it up with at least a little more advice.
"Do you do magic on the fly, or is it more of a ritual thing? If you throw energy around like he does, blocking attacks is easy. If you're not trying to do that with it, though... could make it an invisibility shield. Hard to attack what you can't see," That was more John's style- making people think he wasn't there, to avoid the punch up.