The Fate Of A Little Pony (Patreon)

Rin Tohsaka believes she's reaching a breakthrough that will change her magecraft forever! Though she made the unfortunate decision to skimp on material costs due to her budget constraints lately. Nevertheless, she turns out to be correct that her magic will be altered for an indeterminate amount of time due to this new experiment of hers...Commission for ConcealedStarSwap. A short length story based on another comm they'd gotten before which can be seen here (and is also the pic featured in the thumbnail and story)