There is Lupe Santiago aka Silverclaw.
https://en.wikipedia.org/wiki/Silverclaw
Topaz is originally a poc but she has look white at times too looking at her bio.
Powers and AbilitiesTopaz's origins and real name are unknown, even to herself. As an infant, Topaz was found and adopted by the Sorcerer Taboo, who was living in an Indian prison camp at the time.
Powers
https://marvel.fandom.com/wiki/Topaz_(Earth-616)Topaz is a powerful mystic with exceptional empathic, telepathic, and telekinetic abilities. She can magnify or diminish emotions, infuse life energy, and heal injures. She can serve as a familiar to other sorcerers, focusing and magnifying their abilities.
She has taken two separate forms, one Caucasian, one Indian.
I don't expect there are 20 POC in most categories let alone one so narrow.
it would be great if there was but even so it would be littered with minor characters.
Ororo Munroe - Storm didn't used to do Magic?
Ororo Munroe (Earth-616)
Powers and Abilities
Powers
Magical Potential: Storm's ancestry supports the use of magic and witchcraft. Many of her ancestors were sorceresses and priestesses.
Storm's ancestor Ashake, who worships the Egyptian goddess Ma'at, also known as Oshtur, the mother of Agamotto. Oshtur appears to have strong favor for the bloodline of Ororo.
Storm's maternal powers have even been linked to the real-world Rain Queens of Balobedu, the region from which her Sorceress Supreme ancestor, Ayesha, hails.