Dandelyon's Worlds

Embroidery magic is kind of the sort of thing where you prepare for weeks or months. I'd envision a phoenix-embroidered robe might make one resistant to fire, for instance, or able to throw balls of fire at one's enemies, rather than stitching for an eternity just to conjure a phoenix once. Or tapestries that open into dream worlds, where unicorns graze at moonlit lakes and at the right time, the embroidery mage can offer a gift and receive a boon.

I don't know the actual art of embroidery but it seems to me that someone would have to be very patient to practice it... And good at dealing with impatient people.