There is nothing of the sort that I've observed, on the planet.
[But right, a demonstration. Calling a spell to mind is no difficult task- a low level lightning spell was in his head the moment he suggested the demonstration. It ought to be more than enough to prove his point, and won't waste too much energy in the process, should he need that power later on. A moment to focus, and then he casts Thunder on a nearby patch of ground, the electricity crackling and charring the ground.]
no subject
[But right, a demonstration. Calling a spell to mind is no difficult task- a low level lightning spell was in his head the moment he suggested the demonstration. It ought to be more than enough to prove his point, and won't waste too much energy in the process, should he need that power later on. A moment to focus, and then he casts Thunder on a nearby patch of ground, the electricity crackling and charring the ground.]