(07-26-2013, 07:15 PM)FreelanceWizard Wrote: While there's no direct example of that in lore, it seems entirely reasonable that a character could have an inability to use one or all forms of magic and have it manifest in such a manner. I can especially see it with Conjury, since you're using elementally aspected Aether from the world. If, for example, your character angered elementals, they may respond especially negatively to you and express that displeasure by interfering with your magic.
Actually, it has been confirmed canonically that a majority of full-blooded Garleans have an extreme ineptitude for the use of magic, to a point where most can't even cast the most basic of spells. It's one of the reasons they rely so heavily on Magitek. The Imperial NPCs you do see using magic are conscripts from conquered territories.
So it's definitely within the realm of possibility.