A trichomancer is a practitioner of magic who uses hair to bind spells to objects. Could be weapons, could even be a saucepan. Hair color decides what kind of spell can be attached. Viable strands that can carry the energy are few and they can only be isolated after the hair has been detached. So he goes around harvesting hair to further his craft.
I could see that as a unique D&D class… or even an NPC, for a DM who wants to taunt magical player characters who are especially proud of their hair but need some coin.
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