And as soon as they run out of magic and revert they would almost instantly pass out for at least a week

septic-dr-schneep:

shadowedlove97:

whumpxng:

look, im just a slut for some magical exhaustion okay
give me your whumpees overusing their magic and having physical repercussions from it, bloody noses, unable to stand, getting progressively weaker, utterly exhausted and spent !!

bonus points: if they know they are running low on magic but they have no choice but to keep using more until they just collapse

bonus bonus points: if their magic is somehow connected to their life force!!

@septic-dr-schneep

This sounds right up your alley.

Hehehehehe