I suspect that inventing a few more of our own spells might well help with reverse engineering other battle magic. Particularly a diversity of effects. Creating an apparition (or if we're really lucky divine spirit) binding spell, spells that use that mist in various ways.
Talking of blue sky research, I wonder how dangerous it would be to hook into a bound apparitions perception of the world to get a different way of seeing and understanding supernatural phenomena.
I also wonder if apparition based spells might be more transferable than other spells, as much of the heavy lifting of the details of the spell is inherent to the apparition rather than by the wizard themselves having to define and understand everything.
Talking of blue sky research, I wonder how dangerous it would be to hook into a bound apparitions perception of the world to get a different way of seeing and understanding supernatural phenomena.
I also wonder if apparition based spells might be more transferable than other spells, as much of the heavy lifting of the details of the spell is inherent to the apparition rather than by the wizard themselves having to define and understand everything.