Weaveghost

A Weaveghost was the spirit of a chosen of Mystra (the goddess of magic), who became one with the Weave after their death, while maintaining their sentience and individuality.

Description
Weaveghosts didn't have a standard appearance. They could create spectral manifestations of themselves, of various shapes and kinds, but were invisible and immaterial unless they wished to be seen.

Creation
A Weaveghost was created when a chosen of Mystra physically died. Their soul would "ride the Weave", from where Mystra could gain access to their experiences and memories. A Weaveghost remained such until Mystra decided that she needed her chosen to be active in the material world again, and formed a new body for them. A chosen who lived long enough for their body to be worn out by the amount of magical energies that coursed through it could temporarily become a Weaveghost while waiting for Mystra to create a new body.

Becoming a Weaveghost was atrociously painful at the start, but the pain gradually vanished. In the end, being part of a constant rushing of power like the Weave, and being able to shape it, was to some (like Laeral Silverhand) a pleasurable and enticing experience.

Powers
A Weaveghost was one with the perpetual flux of power of the Weave. They kept their own individuality, sentience, and memories, and were able to shape the Weave itself. For example, they could manifest as ghostly apparitions of varying appearance and power, and often did so by rising from altars or magic items dedicated to Mystra—either to speak as her messengers or for more trivial reasons, like impressing wizards and clerics alike. They could also communicate telepathically through the Weave.

A Weaveghost wasn't necessarily bound to an item or an altar (as shown by Laeral Silverhand during the Waterdeep crisis of 1491 DR), and when they were, they still retained a degree of mobility. For example, as Weaveghosts, Syluné and Dove of the Seven Sisters were tied to two magical pebbles that Storm gave to Laeral, but they could move away from the pebbles, and often did so to scout ahead and be Laeral's eyes when she needed it. They could also communicate from their pebbles, and on many occasions the three sisters merrily chatted together. Likewise, as a Weaveghost, Qilué Veladorn could even travel to Eilistraee's divine realm, despite being a part of the Weave.

While the powers of a Weaveghost couldn't be used to cause significant harm, they could twist the Weave moved by the spells of others and absorb it into themselves, effectively dissipating the magic.

Weaveghosts of Note

 * Anastra Syluné Silverhand
 * Dove Falconhand
 * Qilué Veladorn