Tailoring is a Corporalki ability to change a person's appearance. Tailors were once considered rare and special though in Ravka, tailoring is now taught to all Corporalki students of the Second Army. Genya Safin was the First Tailor and was considered a low-level Grisha who served the Queen of Ravka before the Ravkan civil war.

Tailors can also change a person's eyes and hair if they have the right material, or take away or give a tattoo.