Magic: Zhered-Na was one of the most powerful magic users of her era.
Precognition: She possessed vast precognitive abilities.
Astral Projection: She could access the astral plane as well as other dimensions.
Trans-Dimensional Teleportation: She has also proven able to transport others across dimensional barriers.
Project Magical Bolts
Longevity: She also magically extend the lifespan of a disciple by over 20,000 years.
She has sometimes invoked such entities as Valka and Agamotto in her spell casting.
She possessed a book which held all of her magical scrolls which has since been called the Tome of Zhered-Na. It is supposedly one of the most powerful books of magic ever created, though its power is presumably less than that of the Darkhold