In the RDM questline...
Something similar to that effect could be used for a "temporary" infliction rather than it being a permanent aetherflow disruption or something. If you wanted a reason for a character to know how to cast spells easily and then have them be unable to for a time. Comes down to if you want it to be handled upon your character's sake of actual ability to control aether... Or if you want it to be a third party reason that forces them to give it up for be unable to temporarily or permanently.
Something similar to that effect could be used for a "temporary" infliction rather than it being a permanent aetherflow disruption or something. If you wanted a reason for a character to know how to cast spells easily and then have them be unable to for a time. Comes down to if you want it to be handled upon your character's sake of actual ability to control aether... Or if you want it to be a third party reason that forces them to give it up for be unable to temporarily or permanently.